RSA与AES实现数据加密传输
RSA、AES简介
RSA：非对称加密，需要提前生成两个密钥（一对的），通过其中一个密钥加密后的数据，只有另一个密钥能解密。通常这两个密钥中有一个会暴漏出来，即对外公开的，这个密钥称为“公钥”，反之另一个是隐藏起来的，不公开的密钥称为“私钥”。
EAS：对称机密，数据的加密和解密都只使用同一个密钥。
关于加密传输
是为了保证数据传输过程中，数据即使被“中间人”截获，“中间人”也无法解析其中的数据，使“中间人”无法得知我们实际要传输的数据，以达到保护数据的目的。如果客户端本身存在安全问题，则无法保证数据的安全，如浏览器端JS变量存储了即将传输的用户密码，这个变量被其他非信任脚本或其他方式获取到了，会导致数据泄露，这种问题并不是加密传输所能处理的。加密传输能保障数据，有一个前提，那就是对于本地动态生成的变量，就认为是安全的，是认为第三方无法获取的。
RSA和AES配合实现加密传输
客户端往服务端传输加密数据
- 客户端每次请求前，都随机生成不同的AES密钥，保存到变量aesKey中
- 使用aesKey对要传输的信息进加密，得到加密内容A
- 通过预置在客户端的RSA公钥rsaPublicKey对aesKey加密，得到加密内容B
- 将内容A和内容B传输到服务端
- 服务端接收到内容A和内容B
- 使用预置在服务器端的RSA私钥rsaPrivateKey对内容B进行解密，还原得到客户端的aesKey
- 使用刚刚得到的aesKey对内容A进行解密，得到实际要传输的内容
服务端往客户端响应加密数据
- 以上第6步中，服务器得到了客户端的aesKey，用这个aesKey对要响应的内容进行加密，得到内容C，将内容C传输给客户端。
- 客户端接收到内容C，使用本地变量aesKey对内容C解密，得到实际的响应内容。
总结
以上过程中，客户端动态生成的本地变量aesKey，就认为是外部无法获取的，并且信任这个值，用来加密传输数据。如果这个值被外部获取到了，则服务器响应给客户端的加密数据的安全性就无法得到保障了。可能会有这样的疑问：前端调试打个断点不就获取到了吗？同样的道理，你打个断点也能获取到用户即将提交的登陆账号密码。所以还是那句话，相信本地动态生成的变量的安全性，否则加密传输的安全性无法得到保障。
代码实现
AES加密解密（JS和JAVA） 代码参考来源：https://www.cnblogs.com/libo0125ok/p/7668026.html
JS
首先JS库
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JS加密解密函数（密钥需替换）
function encrypt(word){
var key = CryptoJS.enc.Utf8.parse("abcdefgabcdefg12");
var srcs = CryptoJS.enc.Utf8.parse(word);
var encrypted = CryptoJS.AES.encrypt(srcs, key, {mode:CryptoJS.mode.ECB,padding: CryptoJS.pad.Pkcs7});
return encrypted.toString();
}
function decrypt(word){
var key = CryptoJS.enc.Utf8.parse("abcdefgabcdefg12");
var decrypt = CryptoJS.AES.decrypt(word, key, {mode:CryptoJS.mode.ECB,padding: CryptoJS.pad.Pkcs7});
return CryptoJS.enc.Utf8.stringify(decrypt).toString();
}
Java
Java依赖
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>
加密解密类
package com.lin.utils; import java.math.BigInteger; import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec; import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils; import sun.misc.BASE64Decoder; /**
* AES的加密和解密
* @author libo
*/
public class Aes {
//密钥 (需要前端和后端保持一致)
private static final String KEY = "abcdefgabcdefg12";
//算法
private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding"; /**
* aes解密
* @param encrypt 内容
* @return
* @throws Exception
*/
public static String aesDecrypt(String encrypt) {
try {
return aesDecrypt(encrypt, KEY);
} catch (Exception e) {
e.printStackTrace();
return "";
}
} /**
* aes加密
* @param content
* @return
* @throws Exception
*/
public static String aesEncrypt(String content) {
try {
return aesEncrypt(content, KEY);
} catch (Exception e) {
e.printStackTrace();
return "";
}
} /**
* 将byte[]转为各种进制的字符串
* @param bytes byte[]
* @param radix 可以转换进制的范围，从Character.MIN_RADIX到Character.MAX_RADIX，超出范围后变为10进制
* @return 转换后的字符串
*/
public static String binary(byte[] bytes, int radix){
return new BigInteger(1, bytes).toString(radix);// 这里的1代表正数
} /**
* base 64 encode
* @param bytes 待编码的byte[]
* @return 编码后的base 64 code
*/
public static String base64Encode(byte[] bytes){
return Base64.encodeBase64String(bytes);
} /**
* base 64 decode
* @param base64Code 待解码的base 64 code
* @return 解码后的byte[]
* @throws Exception
*/
public static byte[] base64Decode(String base64Code) throws Exception{
return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);
} /**
* AES加密
* @param content 待加密的内容
* @param encryptKey 加密密钥
* @return 加密后的byte[]
* @throws Exception
*/
public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES")); return cipher.doFinal(content.getBytes("utf-8"));
} /**
* AES加密为base 64 code
* @param content 待加密的内容
* @param encryptKey 加密密钥
* @return 加密后的base 64 code
* @throws Exception
*/
public static String aesEncrypt(String content, String encryptKey) throws Exception {
return base64Encode(aesEncryptToBytes(content, encryptKey));
} /**
* AES解密
* @param encryptBytes 待解密的byte[]
* @param decryptKey 解密密钥
* @return 解密后的String
* @throws Exception
*/
public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128); Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));
byte[] decryptBytes = cipher.doFinal(encryptBytes);
return new String(decryptBytes);
} /**
* 将base 64 code AES解密
* @param encryptStr 待解密的base 64 code
* @param decryptKey 解密密钥
* @return 解密后的string
* @throws Exception
*/
public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception {
return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey);
} /**
* 测试
*/
public static void main(String[] args) throws Exception {
String content = "123";
System.out.println("加密前：" + content);
System.out.println("加密密钥和解密密钥：" + KEY);
String encrypt = aesEncrypt(content, KEY);
System.out.println("加密后：" + encrypt);
String decrypt = aesDecrypt(encrypt, KEY);
System.out.println("解密后：" + decrypt);
}
}
RSA（JS加密，Java解密）
Java依赖
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>1.52</version>
</dependency>
Java生成公钥和私钥
/**
* 每次生成的结果都不一致，所以系统整个生命周期中一般只需要生成一次即可，将生成结果保留下来.
*/
public static void init() throws Exception {
Security.addProvider(new BouncyCastleProvider());
SecureRandom random = new SecureRandom();
KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA", "BC");
generator.initialize(1024, random);
KeyPair kp = generator.generateKeyPair(); System.out.println("公钥:" + Base64.encodeBase64String(kp.getPublic().getEncoded()));
System.out.println("私钥:" + Base64.encodeBase64String(kp.getPrivate().getEncoded()));
}
解密函数
/**
* 解密.
* @param data 待解密字符串.
* @param key 私钥.
* @return 返回解密后的字符串.
* @throws Exception
*/
public static String decryptByPrivateKey(String data, String key) throws Exception{
byte[] dataByte = Base64.decodeBase64(data);
byte[] keyBytes = Base64.decodeBase64(key); // 取得私钥
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
Key privateKey = keyFactory.generatePrivate(pkcs8KeySpec); // 对数据解密
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, privateKey); return new String(cipher.doFinal(dataByte), "UTF-8");
}
JS库（https://blog-static.cnblogs.com/files/woodk/jsencrypt.js）
var JSEncryptExports = {};
(function(exports) {
// Copyright (c) 2005 Tom Wu
// All Rights Reserved.
// See "LICENSE" for details.
// Basic JavaScript BN library - subset useful for RSA encryption.
// Bits per digit
var dbits;
// JavaScript engine analysis
var canary = 0xdeadbeefcafe;
var j_lm = ((canary&0xffffff)==0xefcafe);
// (public) Constructor
function BigInteger(a,b,c) {
if(a != null)
if("number" == typeof a) this.fromNumber(a,b,c);
else if(b == null && "string" != typeof a) this.fromString(a,256);
else this.fromString(a,b);
}
// return new, unset BigInteger
function nbi() { return new BigInteger(null); }
// am: Compute w_j += (x*this_i), propagate carries,
// c is initial carry, returns final carry.
// c < 3*dvalue, x < 2*dvalue, this_i < dvalue
// We need to select the fastest one that works in this environment.
// am1: use a single mult and divide to get the high bits,
// max digit bits should be 26 because
// max internal value = 2*dvalue^2-2*dvalue (< 2^53)
function am1(i,x,w,j,c,n) {
while(--n >= 0) {
var v = x*this[i++]+w[j]+c;
c = Math.floor(v/0x4000000);
w[j++] = v&0x3ffffff;
}
return c;
}
// am2 avoids a big mult-and-extract completely.
// Max digit bits should be <= 30 because we do bitwise ops
// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31)
function am2(i,x,w,j,c,n) {
var xl = x&0x7fff, xh = x>>15;
while(--n >= 0) {
var l = this[i]&0x7fff;
var h = this[i++]>>15;
var m = xh*l+h*xl;
l = xl*l+((m&0x7fff)<<15)+w[j]+(c&0x3fffffff);
c = (l>>>30)+(m>>>15)+xh*h+(c>>>30);
w[j++] = l&0x3fffffff;
}
return c;
}
// Alternately, set max digit bits to 28 since some
// browsers slow down when dealing with 32-bit numbers.
function am3(i,x,w,j,c,n) {
var xl = x&0x3fff, xh = x>>14;
while(--n >= 0) {
var l = this[i]&0x3fff;
var h = this[i++]>>14;
var m = xh*l+h*xl;
l = xl*l+((m&0x3fff)<<14)+w[j]+c;
c = (l>>28)+(m>>14)+xh*h;
w[j++] = l&0xfffffff;
}
return c;
}
if(j_lm && (navigator.appName == "Microsoft Internet Explorer")) {
BigInteger.prototype.am = am2;
dbits = 30;
}
else if(j_lm && (navigator.appName != "Netscape")) {
BigInteger.prototype.am = am1;
dbits = 26;
}
else { // Mozilla/Netscape seems to prefer am3
BigInteger.prototype.am = am3;
dbits = 28;
}
BigInteger.prototype.DB = dbits;
BigInteger.prototype.DM = ((1<<dbits)-1);
BigInteger.prototype.DV = (1<<dbits);
var BI_FP = 52;
BigInteger.prototype.FV = Math.pow(2,BI_FP);
BigInteger.prototype.F1 = BI_FP-dbits;
BigInteger.prototype.F2 = 2*dbits-BI_FP;
// Digit conversions
var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz";
var BI_RC = new Array();
var rr,vv;
rr = "0".charCodeAt(0);
for(vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv;
rr = "a".charCodeAt(0);
for(vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv;
rr = "A".charCodeAt(0);
for(vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv;
function int2char(n) { return BI_RM.charAt(n); }
function intAt(s,i) {
var c = BI_RC[s.charCodeAt(i)];
return (c==null)?-1:c;
}
// (protected) copy this to r
function bnpCopyTo(r) {
for(var i = this.t-1; i >= 0; --i) r[i] = this[i];
r.t = this.t;
r.s = this.s;
}
// (protected) set from integer value x, -DV <= x < DV
function bnpFromInt(x) {
this.t = 1;
this.s = (x<0)?-1:0;
if(x > 0) this[0] = x;
else if(x < -1) this[0] = x+this.DV;
else this.t = 0;
}
// return bigint initialized to value
function nbv(i) { var r = nbi(); r.fromInt(i); return r; }
// (protected) set from string and radix
function bnpFromString(s,b) {
var k;
if(b == 16) k = 4;
else if(b == 8) k = 3;
else if(b == 256) k = 8; // byte array
else if(b == 2) k = 1;
else if(b == 32) k = 5;
else if(b == 4) k = 2;
else { this.fromRadix(s,b); return; }
this.t = 0;
this.s = 0;
var i = s.length, mi = false, sh = 0;
while(--i >= 0) {
var x = (k==8)?s[i]&0xff:intAt(s,i);
if(x < 0) {
if(s.charAt(i) == "-") mi = true;
continue;
}
mi = false;
if(sh == 0)
this[this.t++] = x;
else if(sh+k > this.DB) {
this[this.t-1] |= (x&((1<<(this.DB-sh))-1))<<sh;
this[this.t++] = (x>>(this.DB-sh));
}
else
this[this.t-1] |= x<<sh;
sh += k;
if(sh >= this.DB) sh -= this.DB;
}
if(k == 8 && (s[0]&0x80) != 0) {
this.s = -1;
if(sh > 0) this[this.t-1] |= ((1<<(this.DB-sh))-1)<<sh;
}
this.clamp();
if(mi) BigInteger.ZERO.subTo(this,this);
}
// (protected) clamp off excess high words
function bnpClamp() {
var c = this.s&this.DM;
while(this.t > 0 && this[this.t-1] == c) --this.t;
}
// (public) return string representation in given radix
function bnToString(b) {
if(this.s < 0) return "-"+this.negate().toString(b);
var k;
if(b == 16) k = 4;
else if(b == 8) k = 3;
else if(b == 2) k = 1;
else if(b == 32) k = 5;
else if(b == 4) k = 2;
else return this.toRadix(b);
var km = (1<<k)-1, d, m = false, r = "", i = this.t;
var p = this.DB-(i*this.DB)%k;
if(i-- > 0) {
if(p < this.DB && (d = this[i]>>p) > 0) { m = true; r = int2char(d); }
while(i >= 0) {
if(p < k) {
d = (this[i]&((1<<p)-1))<<(k-p);
d |= this[--i]>>(p+=this.DB-k);
}
else {
d = (this[i]>>(p-=k))&km;
if(p <= 0) { p += this.DB; --i; }
}
if(d > 0) m = true;
if(m) r += int2char(d);
}
}
return m?r:"0";
}
// (public) -this
function bnNegate() { var r = nbi(); BigInteger.ZERO.subTo(this,r); return r; }
// (public) |this|
function bnAbs() { return (this.s<0)?this.negate():this; }
// (public) return + if this > a, - if this < a, 0 if equal
function bnCompareTo(a) {
var r = this.s-a.s;
if(r != 0) return r;
var i = this.t;
r = i-a.t;
if(r != 0) return (this.s<0)?-r:r;
while(--i >= 0) if((r=this[i]-a[i]) != 0) return r;
return 0;
}
// returns bit length of the integer x
function nbits(x) {
var r = 1, t;
if((t=x>>>16) != 0) { x = t; r += 16; }
if((t=x>>8) != 0) { x = t; r += 8; }
if((t=x>>4) != 0) { x = t; r += 4; }
if((t=x>>2) != 0) { x = t; r += 2; }
if((t=x>>1) != 0) { x = t; r += 1; }
return r;
}
// (public) return the number of bits in "this"
function bnBitLength() {
if(this.t <= 0) return 0;
return this.DB*(this.t-1)+nbits(this[this.t-1]^(this.s&this.DM));
}
// (protected) r = this << n*DB
function bnpDLShiftTo(n,r) {
var i;
for(i = this.t-1; i >= 0; --i) r[i+n] = this[i];
for(i = n-1; i >= 0; --i) r[i] = 0;
r.t = this.t+n;
r.s = this.s;
}
// (protected) r = this >> n*DB
function bnpDRShiftTo(n,r) {
for(var i = n; i < this.t; ++i) r[i-n] = this[i];
r.t = Math.max(this.t-n,0);
r.s = this.s;
}
// (protected) r = this << n
function bnpLShiftTo(n,r) {
var bs = n%this.DB;
var cbs = this.DB-bs;
var bm = (1<<cbs)-1;
var ds = Math.floor(n/this.DB), c = (this.s<<bs)&this.DM, i;
for(i = this.t-1; i >= 0; --i) {
r[i+ds+1] = (this[i]>>cbs)|c;
c = (this[i]&bm)<<bs;
}
for(i = ds-1; i >= 0; --i) r[i] = 0;
r[ds] = c;
r.t = this.t+ds+1;
r.s = this.s;
r.clamp();
}
// (protected) r = this >> n
function bnpRShiftTo(n,r) {
r.s = this.s;
var ds = Math.floor(n/this.DB);
if(ds >= this.t) { r.t = 0; return; }
var bs = n%this.DB;
var cbs = this.DB-bs;
var bm = (1<<bs)-1;
r[0] = this[ds]>>bs;
for(var i = ds+1; i < this.t; ++i) {
r[i-ds-1] |= (this[i]&bm)<<cbs;
r[i-ds] = this[i]>>bs;
}
if(bs > 0) r[this.t-ds-1] |= (this.s&bm)<<cbs;
r.t = this.t-ds;
r.clamp();
}
// (protected) r = this - a
function bnpSubTo(a,r) {
var i = 0, c = 0, m = Math.min(a.t,this.t);
while(i < m) {
c += this[i]-a[i];
r[i++] = c&this.DM;
c >>= this.DB;
}
if(a.t < this.t) {
c -= a.s;
while(i < this.t) {
c += this[i];
r[i++] = c&this.DM;
c >>= this.DB;
}
c += this.s;
}
else {
c += this.s;
while(i < a.t) {
c -= a[i];
r[i++] = c&this.DM;
c >>= this.DB;
}
c -= a.s;
}
r.s = (c<0)?-1:0;
if(c < -1) r[i++] = this.DV+c;
else if(c > 0) r[i++] = c;
r.t = i;
r.clamp();
}
// (protected) r = this * a, r != this,a (HAC 14.12)
// "this" should be the larger one if appropriate.
function bnpMultiplyTo(a,r) {
var x = this.abs(), y = a.abs();
var i = x.t;
r.t = i+y.t;
while(--i >= 0) r[i] = 0;
for(i = 0; i < y.t; ++i) r[i+x.t] = x.am(0,y[i],r,i,0,x.t);
r.s = 0;
r.clamp();
if(this.s != a.s) BigInteger.ZERO.subTo(r,r);
}
// (protected) r = this^2, r != this (HAC 14.16)
function bnpSquareTo(r) {
var x = this.abs();
var i = r.t = 2*x.t;
while(--i >= 0) r[i] = 0;
for(i = 0; i < x.t-1; ++i) {
var c = x.am(i,x[i],r,2*i,0,1);
if((r[i+x.t]+=x.am(i+1,2*x[i],r,2*i+1,c,x.t-i-1)) >= x.DV) {
r[i+x.t] -= x.DV;
r[i+x.t+1] = 1;
}
}
if(r.t > 0) r[r.t-1] += x.am(i,x[i],r,2*i,0,1);
r.s = 0;
r.clamp();
}
// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)
// r != q, this != m. q or r may be null.
function bnpDivRemTo(m,q,r) {
var pm = m.abs();
if(pm.t <= 0) return;
var pt = this.abs();
if(pt.t < pm.t) {
if(q != null) q.fromInt(0);
if(r != null) this.copyTo(r);
return;
}
if(r == null) r = nbi();
var y = nbi(), ts = this.s, ms = m.s;
var nsh = this.DB-nbits(pm[pm.t-1]); // normalize modulus
if(nsh > 0) { pm.lShiftTo(nsh,y); pt.lShiftTo(nsh,r); }
else { pm.copyTo(y); pt.copyTo(r); }
var ys = y.t;
var y0 = y[ys-1];
if(y0 == 0) return;
var yt = y0*(1<<this.F1)+((ys>1)?y[ys-2]>>this.F2:0);
var d1 = this.FV/yt, d2 = (1<<this.F1)/yt, e = 1<<this.F2;
var i = r.t, j = i-ys, t = (q==null)?nbi():q;
y.dlShiftTo(j,t);
if(r.compareTo(t) >= 0) {
r[r.t++] = 1;
r.subTo(t,r);
}
BigInteger.ONE.dlShiftTo(ys,t);
t.subTo(y,y); // "negative" y so we can replace sub with am later
while(y.t < ys) y[y.t++] = 0;
while(--j >= 0) {
// Estimate quotient digit
var qd = (r[--i]==y0)?this.DM:Math.floor(r[i]*d1+(r[i-1]+e)*d2);
if((r[i]+=y.am(0,qd,r,j,0,ys)) < qd) { // Try it out
y.dlShiftTo(j,t);
r.subTo(t,r);
while(r[i] < --qd) r.subTo(t,r);
}
}
if(q != null) {
r.drShiftTo(ys,q);
if(ts != ms) BigInteger.ZERO.subTo(q,q);
}
r.t = ys;
r.clamp();
if(nsh > 0) r.rShiftTo(nsh,r); // Denormalize remainder
if(ts < 0) BigInteger.ZERO.subTo(r,r);
}
// (public) this mod a
function bnMod(a) {
var r = nbi();
this.abs().divRemTo(a,null,r);
if(this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r,r);
return r;
}
// Modular reduction using "classic" algorithm
function Classic(m) { this.m = m; }
function cConvert(x) {
if(x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m);
else return x;
}
function cRevert(x) { return x; }
function cReduce(x) { x.divRemTo(this.m,null,x); }
function cMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); }
function cSqrTo(x,r) { x.squareTo(r); this.reduce(r); }
Classic.prototype.convert = cConvert;
Classic.prototype.revert = cRevert;
Classic.prototype.reduce = cReduce;
Classic.prototype.mulTo = cMulTo;
Classic.prototype.sqrTo = cSqrTo;
// (protected) return "-1/this % 2^DB"; useful for Mont. reduction
// justification:
// xy == 1 (mod m)
// xy = 1+km
// xy(2-xy) = (1+km)(1-km)
// x[y(2-xy)] = 1-k^2m^2
// x[y(2-xy)] == 1 (mod m^2)
// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2
// should reduce x and y(2-xy) by m^2 at each step to keep size bounded.
// JS multiply "overflows" differently from C/C++, so care is needed here.
function bnpInvDigit() {
if(this.t < 1) return 0;
var x = this[0];
if((x&1) == 0) return 0;
var y = x&3; // y == 1/x mod 2^2
y = (y*(2-(x&0xf)*y))&0xf; // y == 1/x mod 2^4
y = (y*(2-(x&0xff)*y))&0xff; // y == 1/x mod 2^8
y = (y*(2-(((x&0xffff)*y)&0xffff)))&0xffff; // y == 1/x mod 2^16
// last step - calculate inverse mod DV directly;
// assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints
y = (y*(2-x*y%this.DV))%this.DV; // y == 1/x mod 2^dbits
// we really want the negative inverse, and -DV < y < DV
return (y>0)?this.DV-y:-y;
}
// Montgomery reduction
function Montgomery(m) {
this.m = m;
this.mp = m.invDigit();
this.mpl = this.mp&0x7fff;
this.mph = this.mp>>15;
this.um = (1<<(m.DB-15))-1;
this.mt2 = 2*m.t;
}
// xR mod m
function montConvert(x) {
var r = nbi();
x.abs().dlShiftTo(this.m.t,r);
r.divRemTo(this.m,null,r);
if(x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r,r);
return r;
}
// x/R mod m
function montRevert(x) {
var r = nbi();
x.copyTo(r);
this.reduce(r);
return r;
}
// x = x/R mod m (HAC 14.32)
function montReduce(x) {
while(x.t <= this.mt2) // pad x so am has enough room later
x[x.t++] = 0;
for(var i = 0; i < this.m.t; ++i) {
// faster way of calculating u0 = x[i]*mp mod DV
var j = x[i]&0x7fff;
var u0 = (j*this.mpl+(((j*this.mph+(x[i]>>15)*this.mpl)&this.um)<<15))&x.DM;
// use am to combine the multiply-shift-add into one call
j = i+this.m.t;
x[j] += this.m.am(0,u0,x,i,0,this.m.t);
// propagate carry
while(x[j] >= x.DV) { x[j] -= x.DV; x[++j]++; }
}
x.clamp();
x.drShiftTo(this.m.t,x);
if(x.compareTo(this.m) >= 0) x.subTo(this.m,x);
}
// r = "x^2/R mod m"; x != r
function montSqrTo(x,r) { x.squareTo(r); this.reduce(r); }
// r = "xy/R mod m"; x,y != r
function montMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); }
Montgomery.prototype.convert = montConvert;
Montgomery.prototype.revert = montRevert;
Montgomery.prototype.reduce = montReduce;
Montgomery.prototype.mulTo = montMulTo;
Montgomery.prototype.sqrTo = montSqrTo;
// (protected) true iff this is even
function bnpIsEven() { return ((this.t>0)?(this[0]&1):this.s) == 0; }
// (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79)
function bnpExp(e,z) {
if(e > 0xffffffff || e < 1) return BigInteger.ONE;
var r = nbi(), r2 = nbi(), g = z.convert(this), i = nbits(e)-1;
g.copyTo(r);
while(--i >= 0) {
z.sqrTo(r,r2);
if((e&(1<<i)) > 0) z.mulTo(r2,g,r);
else { var t = r; r = r2; r2 = t; }
}
return z.revert(r);
}
// (public) this^e % m, 0 <= e < 2^32
function bnModPowInt(e,m) {
var z;
if(e < 256 || m.isEven()) z = new Classic(m); else z = new Montgomery(m);
return this.exp(e,z);
}
// protected
BigInteger.prototype.copyTo = bnpCopyTo;
BigInteger.prototype.fromInt = bnpFromInt;
BigInteger.prototype.fromString = bnpFromString;
BigInteger.prototype.clamp = bnpClamp;
BigInteger.prototype.dlShiftTo = bnpDLShiftTo;
BigInteger.prototype.drShiftTo = bnpDRShiftTo;
BigInteger.prototype.lShiftTo = bnpLShiftTo;
BigInteger.prototype.rShiftTo = bnpRShiftTo;
BigInteger.prototype.subTo = bnpSubTo;
BigInteger.prototype.multiplyTo = bnpMultiplyTo;
BigInteger.prototype.squareTo = bnpSquareTo;
BigInteger.prototype.divRemTo = bnpDivRemTo;
BigInteger.prototype.invDigit = bnpInvDigit;
BigInteger.prototype.isEven = bnpIsEven;
BigInteger.prototype.exp = bnpExp;
// public
BigInteger.prototype.toString = bnToString;
BigInteger.prototype.negate = bnNegate;
BigInteger.prototype.abs = bnAbs;
BigInteger.prototype.compareTo = bnCompareTo;
BigInteger.prototype.bitLength = bnBitLength;
BigInteger.prototype.mod = bnMod;
BigInteger.prototype.modPowInt = bnModPowInt;
// "constants"
BigInteger.ZERO = nbv(0);
BigInteger.ONE = nbv(1);
// Copyright (c) 2005-2009 Tom Wu
// All Rights Reserved.
// See "LICENSE" for details.
// Extended JavaScript BN functions, required for RSA private ops.
// Version 1.1: new BigInteger("0", 10) returns "proper" zero
// Version 1.2: square() API, isProbablePrime fix
// (public)
function bnClone() { var r = nbi(); this.copyTo(r); return r; }
// (public) return value as integer
function bnIntValue() {
if(this.s < 0) {
if(this.t == 1) return this[0]-this.DV;
else if(this.t == 0) return -1;
}
else if(this.t == 1) return this[0];
else if(this.t == 0) return 0;
// assumes 16 < DB < 32
return ((this[1]&((1<<(32-this.DB))-1))<<this.DB)|this[0];
}
// (public) return value as byte
function bnByteValue() { return (this.t==0)?this.s:(this[0]<<24)>>24; }
// (public) return value as short (assumes DB>=16)
function bnShortValue() { return (this.t==0)?this.s:(this[0]<<16)>>16; }
// (protected) return x s.t. r^x < DV
function bnpChunkSize(r) { return Math.floor(Math.LN2*this.DB/Math.log(r)); }
// (public) 0 if this == 0, 1 if this > 0
function bnSigNum() {
if(this.s < 0) return -1;
else if(this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0;
else return 1;
}
// (protected) convert to radix string
function bnpToRadix(b) {
if(b == null) b = 10;
if(this.signum() == 0 || b < 2 || b > 36) return "0";
var cs = this.chunkSize(b);
var a = Math.pow(b,cs);
var d = nbv(a), y = nbi(), z = nbi(), r = "";
this.divRemTo(d,y,z);
while(y.signum() > 0) {
r = (a+z.intValue()).toString(b).substr(1) + r;
y.divRemTo(d,y,z);
}
return z.intValue().toString(b) + r;
}
// (protected) convert from radix string
function bnpFromRadix(s,b) {
this.fromInt(0);
if(b == null) b = 10;
var cs = this.chunkSize(b);
var d = Math.pow(b,cs), mi = false, j = 0, w = 0;
for(var i = 0; i < s.length; ++i) {
var x = intAt(s,i);
if(x < 0) {
if(s.charAt(i) == "-" && this.signum() == 0) mi = true;
continue;
}
w = b*w+x;
if(++j >= cs) {
this.dMultiply(d);
this.dAddOffset(w,0);
j = 0;
w = 0;
}
}
if(j > 0) {
this.dMultiply(Math.pow(b,j));
this.dAddOffset(w,0);
}
if(mi) BigInteger.ZERO.subTo(this,this);
}
// (protected) alternate constructor
function bnpFromNumber(a,b,c) {
if("number" == typeof b) {
// new BigInteger(int,int,RNG)
if(a < 2) this.fromInt(1);
else {
this.fromNumber(a,c);
if(!this.testBit(a-1)) // force MSB set
this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this);
if(this.isEven()) this.dAddOffset(1,0); // force odd
while(!this.isProbablePrime(b)) {
this.dAddOffset(2,0);
if(this.bitLength() > a) this.subTo(BigInteger.ONE.shiftLeft(a-1),this);
}
}
}
else {
// new BigInteger(int,RNG)
var x = new Array(), t = a&7;
x.length = (a>>3)+1;
b.nextBytes(x);
if(t > 0) x[0] &= ((1<<t)-1); else x[0] = 0;
this.fromString(x,256);
}
}
// (public) convert to bigendian byte array
function bnToByteArray() {
var i = this.t, r = new Array();
r[0] = this.s;
var p = this.DB-(i*this.DB)%8, d, k = 0;
if(i-- > 0) {
if(p < this.DB && (d = this[i]>>p) != (this.s&this.DM)>>p)
r[k++] = d|(this.s<<(this.DB-p));
while(i >= 0) {
if(p < 8) {
d = (this[i]&((1<<p)-1))<<(8-p);
d |= this[--i]>>(p+=this.DB-8);
}
else {
d = (this[i]>>(p-=8))&0xff;
if(p <= 0) { p += this.DB; --i; }
}
if((d&0x80) != 0) d |= -256;
if(k == 0 && (this.s&0x80) != (d&0x80)) ++k;
if(k > 0 || d != this.s) r[k++] = d;
}
}
return r;
}
function bnEquals(a) { return(this.compareTo(a)==0); }
function bnMin(a) { return(this.compareTo(a)<0)?this:a; }
function bnMax(a) { return(this.compareTo(a)>0)?this:a; }
// (protected) r = this op a (bitwise)
function bnpBitwiseTo(a,op,r) {
var i, f, m = Math.min(a.t,this.t);
for(i = 0; i < m; ++i) r[i] = op(this[i],a[i]);
if(a.t < this.t) {
f = a.s&this.DM;
for(i = m; i < this.t; ++i) r[i] = op(this[i],f);
r.t = this.t;
}
else {
f = this.s&this.DM;
for(i = m; i < a.t; ++i) r[i] = op(f,a[i]);
r.t = a.t;
}
r.s = op(this.s,a.s);
r.clamp();
}
// (public) this & a
function op_and(x,y) { return x&y; }
function bnAnd(a) { var r = nbi(); this.bitwiseTo(a,op_and,r); return r; }
// (public) this | a
function op_or(x,y) { return x|y; }
function bnOr(a) { var r = nbi(); this.bitwiseTo(a,op_or,r); return r; }
// (public) this ^ a
function op_xor(x,y) { return x^y; }
function bnXor(a) { var r = nbi(); this.bitwiseTo(a,op_xor,r); return r; }
// (public) this & ~a
function op_andnot(x,y) { return x&~y; }
function bnAndNot(a) { var r = nbi(); this.bitwiseTo(a,op_andnot,r); return r; }
// (public) ~this
function bnNot() {
var r = nbi();
for(var i = 0; i < this.t; ++i) r[i] = this.DM&~this[i];
r.t = this.t;
r.s = ~this.s;
return r;
}
// (public) this << n
function bnShiftLeft(n) {
var r = nbi();
if(n < 0) this.rShiftTo(-n,r); else this.lShiftTo(n,r);
return r;
}
// (public) this >> n
function bnShiftRight(n) {
var r = nbi();
if(n < 0) this.lShiftTo(-n,r); else this.rShiftTo(n,r);
return r;
}
// return index of lowest 1-bit in x, x < 2^31
function lbit(x) {
if(x == 0) return -1;
var r = 0;
if((x&0xffff) == 0) { x >>= 16; r += 16; }
if((x&0xff) == 0) { x >>= 8; r += 8; }
if((x&0xf) == 0) { x >>= 4; r += 4; }
if((x&3) == 0) { x >>= 2; r += 2; }
if((x&1) == 0) ++r;
return r;
}
// (public) returns index of lowest 1-bit (or -1 if none)
function bnGetLowestSetBit() {
for(var i = 0; i < this.t; ++i)
if(this[i] != 0) return i*this.DB+lbit(this[i]);
if(this.s < 0) return this.t*this.DB;
return -1;
}
// return number of 1 bits in x
function cbit(x) {
var r = 0;
while(x != 0) { x &= x-1; ++r; }
return r;
}
// (public) return number of set bits
function bnBitCount() {
var r = 0, x = this.s&this.DM;
for(var i = 0; i < this.t; ++i) r += cbit(this[i]^x);
return r;
}
// (public) true iff nth bit is set
function bnTestBit(n) {
var j = Math.floor(n/this.DB);
if(j >= this.t) return(this.s!=0);
return((this[j]&(1<<(n%this.DB)))!=0);
}
// (protected) this op (1<<n)
function bnpChangeBit(n,op) {
var r = BigInteger.ONE.shiftLeft(n);
this.bitwiseTo(r,op,r);
return r;
}
// (public) this | (1<<n)
function bnSetBit(n) { return this.changeBit(n,op_or); }
// (public) this & ~(1<<n)
function bnClearBit(n) { return this.changeBit(n,op_andnot); }
// (public) this ^ (1<<n)
function bnFlipBit(n) { return this.changeBit(n,op_xor); }
// (protected) r = this + a
function bnpAddTo(a,r) {
var i = 0, c = 0, m = Math.min(a.t,this.t);
while(i < m) {
c += this[i]+a[i];
r[i++] = c&this.DM;
c >>= this.DB;
}
if(a.t < this.t) {
c += a.s;
while(i < this.t) {
c += this[i];
r[i++] = c&this.DM;
c >>= this.DB;
}
c += this.s;
}
else {
c += this.s;
while(i < a.t) {
c += a[i];
r[i++] = c&this.DM;
c >>= this.DB;
}
c += a.s;
}
r.s = (c<0)?-1:0;
if(c > 0) r[i++] = c;
else if(c < -1) r[i++] = this.DV+c;
r.t = i;
r.clamp();
}
// (public) this + a
function bnAdd(a) { var r = nbi(); this.addTo(a,r); return r; }
// (public) this - a
function bnSubtract(a) { var r = nbi(); this.subTo(a,r); return r; }
// (public) this * a
function bnMultiply(a) { var r = nbi(); this.multiplyTo(a,r); return r; }
// (public) this^2
function bnSquare() { var r = nbi(); this.squareTo(r); return r; }
// (public) this / a
function bnDivide(a) { var r = nbi(); this.divRemTo(a,r,null); return r; }
// (public) this % a
function bnRemainder(a) { var r = nbi(); this.divRemTo(a,null,r); return r; }
// (public) [this/a,this%a]
function bnDivideAndRemainder(a) {
var q = nbi(), r = nbi();
this.divRemTo(a,q,r);
return new Array(q,r);
}
// (protected) this *= n, this >= 0, 1 < n < DV
function bnpDMultiply(n) {
this[this.t] = this.am(0,n-1,this,0,0,this.t);
++this.t;
this.clamp();
}
// (protected) this += n << w words, this >= 0
function bnpDAddOffset(n,w) {
if(n == 0) return;
while(this.t <= w) this[this.t++] = 0;
this[w] += n;
while(this[w] >= this.DV) {
this[w] -= this.DV;
if(++w >= this.t) this[this.t++] = 0;
++this[w];
}
}
// A "null" reducer
function NullExp() {}
function nNop(x) { return x; }
function nMulTo(x,y,r) { x.multiplyTo(y,r); }
function nSqrTo(x,r) { x.squareTo(r); }
NullExp.prototype.convert = nNop;
NullExp.prototype.revert = nNop;
NullExp.prototype.mulTo = nMulTo;
NullExp.prototype.sqrTo = nSqrTo;
// (public) this^e
function bnPow(e) { return this.exp(e,new NullExp()); }
// (protected) r = lower n words of "this * a", a.t <= n
// "this" should be the larger one if appropriate.
function bnpMultiplyLowerTo(a,n,r) {
var i = Math.min(this.t+a.t,n);
r.s = 0; // assumes a,this >= 0
r.t = i;
while(i > 0) r[--i] = 0;
var j;
for(j = r.t-this.t; i < j; ++i) r[i+this.t] = this.am(0,a[i],r,i,0,this.t);
for(j = Math.min(a.t,n); i < j; ++i) this.am(0,a[i],r,i,0,n-i);
r.clamp();
}
// (protected) r = "this * a" without lower n words, n > 0
// "this" should be the larger one if appropriate.
function bnpMultiplyUpperTo(a,n,r) {
--n;
var i = r.t = this.t+a.t-n;
r.s = 0; // assumes a,this >= 0
while(--i >= 0) r[i] = 0;
for(i = Math.max(n-this.t,0); i < a.t; ++i)
r[this.t+i-n] = this.am(n-i,a[i],r,0,0,this.t+i-n);
r.clamp();
r.drShiftTo(1,r);
}
// Barrett modular reduction
function Barrett(m) {
// setup Barrett
this.r2 = nbi();
this.q3 = nbi();
BigInteger.ONE.dlShiftTo(2*m.t,this.r2);
this.mu = this.r2.divide(m);
this.m = m;
}
function barrettConvert(x) {
if(x.s < 0 || x.t > 2*this.m.t) return x.mod(this.m);
else if(x.compareTo(this.m) < 0) return x;
else { var r = nbi(); x.copyTo(r); this.reduce(r); return r; }
}
function barrettRevert(x) { return x; }
// x = x mod m (HAC 14.42)
function barrettReduce(x) {
x.drShiftTo(this.m.t-1,this.r2);
if(x.t > this.m.t+1) { x.t = this.m.t+1; x.clamp(); }
this.mu.multiplyUpperTo(this.r2,this.m.t+1,this.q3);
this.m.multiplyLowerTo(this.q3,this.m.t+1,this.r2);
while(x.compareTo(this.r2) < 0) x.dAddOffset(1,this.m.t+1);
x.subTo(this.r2,x);
while(x.compareTo(this.m) >= 0) x.subTo(this.m,x);
}
// r = x^2 mod m; x != r
function barrettSqrTo(x,r) { x.squareTo(r); this.reduce(r); }
// r = x*y mod m; x,y != r
function barrettMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); }
Barrett.prototype.convert = barrettConvert;
Barrett.prototype.revert = barrettRevert;
Barrett.prototype.reduce = barrettReduce;
Barrett.prototype.mulTo = barrettMulTo;
Barrett.prototype.sqrTo = barrettSqrTo;
// (public) this^e % m (HAC 14.85)
function bnModPow(e,m) {
var i = e.bitLength(), k, r = nbv(1), z;
if(i <= 0) return r;
else if(i < 18) k = 1;
else if(i < 48) k = 3;
else if(i < 144) k = 4;
else if(i < 768) k = 5;
else k = 6;
if(i < 8)
z = new Classic(m);
else if(m.isEven())
z = new Barrett(m);
else
z = new Montgomery(m);
// precomputation
var g = new Array(), n = 3, k1 = k-1, km = (1<<k)-1;
g[1] = z.convert(this);
if(k > 1) {
var g2 = nbi();
z.sqrTo(g[1],g2);
while(n <= km) {
g[n] = nbi();
z.mulTo(g2,g[n-2],g[n]);
n += 2;
}
}
var j = e.t-1, w, is1 = true, r2 = nbi(), t;
i = nbits(e[j])-1;
while(j >= 0) {
if(i >= k1) w = (e[j]>>(i-k1))&km;
else {
w = (e[j]&((1<<(i+1))-1))<<(k1-i);
if(j > 0) w |= e[j-1]>>(this.DB+i-k1);
}
n = k;
while((w&1) == 0) { w >>= 1; --n; }
if((i -= n) < 0) { i += this.DB; --j; }
if(is1) { // ret == 1, don't bother squaring or multiplying it
g[w].copyTo(r);
is1 = false;
}
else {
while(n > 1) { z.sqrTo(r,r2); z.sqrTo(r2,r); n -= 2; }
if(n > 0) z.sqrTo(r,r2); else { t = r; r = r2; r2 = t; }
z.mulTo(r2,g[w],r);
}
while(j >= 0 && (e[j]&(1<<i)) == 0) {
z.sqrTo(r,r2); t = r; r = r2; r2 = t;
if(--i < 0) { i = this.DB-1; --j; }
}
}
return z.revert(r);
}
// (public) gcd(this,a) (HAC 14.54)
function bnGCD(a) {
var x = (this.s<0)?this.negate():this.clone();
var y = (a.s<0)?a.negate():a.clone();
if(x.compareTo(y) < 0) { var t = x; x = y; y = t; }
var i = x.getLowestSetBit(), g = y.getLowestSetBit();
if(g < 0) return x;
if(i < g) g = i;
if(g > 0) {
x.rShiftTo(g,x);
y.rShiftTo(g,y);
}
while(x.signum() > 0) {
if((i = x.getLowestSetBit()) > 0) x.rShiftTo(i,x);
if((i = y.getLowestSetBit()) > 0) y.rShiftTo(i,y);
if(x.compareTo(y) >= 0) {
x.subTo(y,x);
x.rShiftTo(1,x);
}
else {
y.subTo(x,y);
y.rShiftTo(1,y);
}
}
if(g > 0) y.lShiftTo(g,y);
return y;
}
// (protected) this % n, n < 2^26
function bnpModInt(n) {
if(n <= 0) return 0;
var d = this.DV%n, r = (this.s<0)?n-1:0;
if(this.t > 0)
if(d == 0) r = this[0]%n;
else for(var i = this.t-1; i >= 0; --i) r = (d*r+this[i])%n;
return r;
}
// (public) 1/this % m (HAC 14.61)
function bnModInverse(m) {
var ac = m.isEven();
if((this.isEven() && ac) || m.signum() == 0) return BigInteger.ZERO;
var u = m.clone(), v = this.clone();
var a = nbv(1), b = nbv(0), c = nbv(0), d = nbv(1);
while(u.signum() != 0) {
while(u.isEven()) {
u.rShiftTo(1,u);
if(ac) {
if(!a.isEven() || !b.isEven()) { a.addTo(this,a); b.subTo(m,b); }
a.rShiftTo(1,a);
}
else if(!b.isEven()) b.subTo(m,b);
b.rShiftTo(1,b);
}
while(v.isEven()) {
v.rShiftTo(1,v);
if(ac) {
if(!c.isEven() || !d.isEven()) { c.addTo(this,c); d.subTo(m,d); }
c.rShiftTo(1,c);
}
else if(!d.isEven()) d.subTo(m,d);
d.rShiftTo(1,d);
}
if(u.compareTo(v) >= 0) {
u.subTo(v,u);
if(ac) a.subTo(c,a);
b.subTo(d,b);
}
else {
v.subTo(u,v);
if(ac) c.subTo(a,c);
d.subTo(b,d);
}
}
if(v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO;
if(d.compareTo(m) >= 0) return d.subtract(m);
if(d.signum() < 0) d.addTo(m,d); else return d;
if(d.signum() < 0) return d.add(m); else return d;
}
var lowprimes = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,983,991,997];
var lplim = (1<<26)/lowprimes[lowprimes.length-1];
// (public) test primality with certainty >= 1-.5^t
function bnIsProbablePrime(t) {
var i, x = this.abs();
if(x.t == 1 && x[0] <= lowprimes[lowprimes.length-1]) {
for(i = 0; i < lowprimes.length; ++i)
if(x[0] == lowprimes[i]) return true;
return false;
}
if(x.isEven()) return false;
i = 1;
while(i < lowprimes.length) {
var m = lowprimes[i], j = i+1;
while(j < lowprimes.length && m < lplim) m *= lowprimes[j++];
m = x.modInt(m);
while(i < j) if(m%lowprimes[i++] == 0) return false;
}
return x.millerRabin(t);
}
// (protected) true if probably prime (HAC 4.24, Miller-Rabin)
function bnpMillerRabin(t) {
var n1 = this.subtract(BigInteger.ONE);
var k = n1.getLowestSetBit();
if(k <= 0) return false;
var r = n1.shiftRight(k);
t = (t+1)>>1;
if(t > lowprimes.length) t = lowprimes.length;
var a = nbi();
for(var i = 0; i < t; ++i) {
//Pick bases at random, instead of starting at 2
a.fromInt(lowprimes[Math.floor(Math.random()*lowprimes.length)]);
var y = a.modPow(r,this);
if(y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) {
var j = 1;
while(j++ < k && y.compareTo(n1) != 0) {
y = y.modPowInt(2,this);
if(y.compareTo(BigInteger.ONE) == 0) return false;
}
if(y.compareTo(n1) != 0) return false;
}
}
return true;
}
// protected
BigInteger.prototype.chunkSize = bnpChunkSize;
BigInteger.prototype.toRadix = bnpToRadix;
BigInteger.prototype.fromRadix = bnpFromRadix;
BigInteger.prototype.fromNumber = bnpFromNumber;
BigInteger.prototype.bitwiseTo = bnpBitwiseTo;
BigInteger.prototype.changeBit = bnpChangeBit;
BigInteger.prototype.addTo = bnpAddTo;
BigInteger.prototype.dMultiply = bnpDMultiply;
BigInteger.prototype.dAddOffset = bnpDAddOffset;
BigInteger.prototype.multiplyLowerTo = bnpMultiplyLowerTo;
BigInteger.prototype.multiplyUpperTo = bnpMultiplyUpperTo;
BigInteger.prototype.modInt = bnpModInt;
BigInteger.prototype.millerRabin = bnpMillerRabin;
// public
BigInteger.prototype.clone = bnClone;
BigInteger.prototype.intValue = bnIntValue;
BigInteger.prototype.byteValue = bnByteValue;
BigInteger.prototype.shortValue = bnShortValue;
BigInteger.prototype.signum = bnSigNum;
BigInteger.prototype.toByteArray = bnToByteArray;
BigInteger.prototype.equals = bnEquals;
BigInteger.prototype.min = bnMin;
BigInteger.prototype.max = bnMax;
BigInteger.prototype.and = bnAnd;
BigInteger.prototype.or = bnOr;
BigInteger.prototype.xor = bnXor;
BigInteger.prototype.andNot = bnAndNot;
BigInteger.prototype.not = bnNot;
BigInteger.prototype.shiftLeft = bnShiftLeft;
BigInteger.prototype.shiftRight = bnShiftRight;
BigInteger.prototype.getLowestSetBit = bnGetLowestSetBit;
BigInteger.prototype.bitCount = bnBitCount;
BigInteger.prototype.testBit = bnTestBit;
BigInteger.prototype.setBit = bnSetBit;
BigInteger.prototype.clearBit = bnClearBit;
BigInteger.prototype.flipBit = bnFlipBit;
BigInteger.prototype.add = bnAdd;
BigInteger.prototype.subtract = bnSubtract;
BigInteger.prototype.multiply = bnMultiply;
BigInteger.prototype.divide = bnDivide;
BigInteger.prototype.remainder = bnRemainder;
BigInteger.prototype.divideAndRemainder = bnDivideAndRemainder;
BigInteger.prototype.modPow = bnModPow;
BigInteger.prototype.modInverse = bnModInverse;
BigInteger.prototype.pow = bnPow;
BigInteger.prototype.gcd = bnGCD;
BigInteger.prototype.isProbablePrime = bnIsProbablePrime;
// JSBN-specific extension
BigInteger.prototype.square = bnSquare;
// BigInteger interfaces not implemented in jsbn:
// BigInteger(int signum, byte[] magnitude)
// double doubleValue()
// float floatValue()
// int hashCode()
// long longValue()
// static BigInteger valueOf(long val)
// prng4.js - uses Arcfour as a PRNG
function Arcfour() {
this.i = 0;
this.j = 0;
this.S = new Array();
}
// Initialize arcfour context from key, an array of ints, each from [0..255]
function ARC4init(key) {
var i, j, t;
for(i = 0; i < 256; ++i)
this.S[i] = i;
j = 0;
for(i = 0; i < 256; ++i) {
j = (j + this.S[i] + key[i % key.length]) & 255;
t = this.S[i];
this.S[i] = this.S[j];
this.S[j] = t;
}
this.i = 0;
this.j = 0;
}
function ARC4next() {
var t;
this.i = (this.i + 1) & 255;
this.j = (this.j + this.S[this.i]) & 255;
t = this.S[this.i];
this.S[this.i] = this.S[this.j];
this.S[this.j] = t;
return this.S[(t + this.S[this.i]) & 255];
}
Arcfour.prototype.init = ARC4init;
Arcfour.prototype.next = ARC4next;
// Plug in your RNG constructor here
function prng_newstate() {
return new Arcfour();
}
// Pool size must be a multiple of 4 and greater than 32.
// An array of bytes the size of the pool will be passed to init()
var rng_psize = 256;
// Random number generator - requires a PRNG backend, e.g. prng4.js
var rng_state;
var rng_pool;
var rng_pptr;
// Initialize the pool with junk if needed.
if(rng_pool == null) {
rng_pool = new Array();
rng_pptr = 0;
var t;
if(window.crypto && window.crypto.getRandomValues) {
// Extract entropy (2048 bits) from RNG if available
var z = new Uint32Array(256);
window.crypto.getRandomValues(z);
for (t = 0; t < z.length; ++t)
rng_pool[rng_pptr++] = z[t] & 255;
}
// Use mouse events for entropy, if we do not have enough entropy by the time
// we need it, entropy will be generated by Math.random.
var onMouseMoveListener = function(ev) {
this.count = this.count || 0;
if (this.count >= 256 || rng_pptr >= rng_psize) {
if (window.removeEventListener)
window.removeEventListener("mousemove", onMouseMoveListener);
else if (window.detachEvent)
window.detachEvent("onmousemove", onMouseMoveListener);
return;
}
this.count += 1;
var mouseCoordinates = ev.x + ev.y;
rng_pool[rng_pptr++] = mouseCoordinates & 255;
};
if (window.addEventListener)
window.addEventListener("mousemove", onMouseMoveListener);
else if (window.attachEvent)
window.attachEvent("onmousemove", onMouseMoveListener);
}
function rng_get_byte() {
if(rng_state == null) {
rng_state = prng_newstate();
// At this point, we may not have collected enough entropy. If not, fall back to Math.random
while (rng_pptr < rng_psize) {
var random = Math.floor(65536 * Math.random());
rng_pool[rng_pptr++] = random & 255;
}
rng_state.init(rng_pool);
for(rng_pptr = 0; rng_pptr < rng_pool.length; ++rng_pptr)
rng_pool[rng_pptr] = 0;
rng_pptr = 0;
}
// TODO: allow reseeding after first request
return rng_state.next();
}
function rng_get_bytes(ba) {
var i;
for(i = 0; i < ba.length; ++i) ba[i] = rng_get_byte();
}
function SecureRandom() {}
SecureRandom.prototype.nextBytes = rng_get_bytes;
// Depends on jsbn.js and rng.js
// Version 1.1: support utf-8 encoding in pkcs1pad2
// convert a (hex) string to a bignum object
function parseBigInt(str,r) {
return new BigInteger(str,r);
}
function linebrk(s,n) {
var ret = "";
var i = 0;
while(i + n < s.length) {
ret += s.substring(i,i+n) + "\n";
i += n;
}
return ret + s.substring(i,s.length);
}
function byte2Hex(b) {
if(b < 0x10)
return "0" + b.toString(16);
else
return b.toString(16);
}
// PKCS#1 (type 2, random) pad input string s to n bytes, and return a bigint
function pkcs1pad2(s,n) {
if(n < s.length + 11) { // TODO: fix for utf-8
console.error("Message too long for RSA");
return null;
}
var ba = new Array();
var i = s.length - 1;
while(i >= 0 && n > 0) {
var c = s.charCodeAt(i--);
if(c < 128) { // encode using utf-8
ba[--n] = c;
}
else if((c > 127) && (c < 2048)) {
ba[--n] = (c & 63) | 128;
ba[--n] = (c >> 6) | 192;
}
else {
ba[--n] = (c & 63) | 128;
ba[--n] = ((c >> 6) & 63) | 128;
ba[--n] = (c >> 12) | 224;
}
}
ba[--n] = 0;
var rng = new SecureRandom();
var x = new Array();
while(n > 2) { // random non-zero pad
x[0] = 0;
while(x[0] == 0) rng.nextBytes(x);
ba[--n] = x[0];
}
ba[--n] = 2;
ba[--n] = 0;
return new BigInteger(ba);
}
// "empty" RSA key constructor
function RSAKey() {
this.n = null;
this.e = 0;
this.d = null;
this.p = null;
this.q = null;
this.dmp1 = null;
this.dmq1 = null;
this.coeff = null;
}
// Set the public key fields N and e from hex strings
function RSASetPublic(N,E) {
if(N != null && E != null && N.length > 0 && E.length > 0) {
this.n = parseBigInt(N,16);
this.e = parseInt(E,16);
}
else
console.error("Invalid RSA public key");
}
// Perform raw public operation on "x": return x^e (mod n)
function RSADoPublic(x) {
return x.modPowInt(this.e, this.n);
}
// Return the PKCS#1 RSA encryption of "text" as an even-length hex string
function RSAEncrypt(text) {
var m = pkcs1pad2(text,(this.n.bitLength()+7)>>3);
if(m == null) return null;
var c = this.doPublic(m);
if(c == null) return null;
var h = c.toString(16);
if((h.length & 1) == 0) return h; else return "0" + h;
}
// Return the PKCS#1 RSA encryption of "text" as a Base64-encoded string
//function RSAEncryptB64(text) {
// var h = this.encrypt(text);
// if(h) return hex2b64(h); else return null;
//}
// protected
RSAKey.prototype.doPublic = RSADoPublic;
// public
RSAKey.prototype.setPublic = RSASetPublic;
RSAKey.prototype.encrypt = RSAEncrypt;
//RSAKey.prototype.encrypt_b64 = RSAEncryptB64;
// Depends on rsa.js and jsbn2.js
// Version 1.1: support utf-8 decoding in pkcs1unpad2
// Undo PKCS#1 (type 2, random) padding and, if valid, return the plaintext
function pkcs1unpad2(d,n) {
var b = d.toByteArray();
var i = 0;
while(i < b.length && b[i] == 0) ++i;
if(b.length-i != n-1 || b[i] != 2)
return null;
++i;
while(b[i] != 0)
if(++i >= b.length) return null;
var ret = "";
while(++i < b.length) {
var c = b[i] & 255;
if(c < 128) { // utf-8 decode
ret += String.fromCharCode(c);
}
else if((c > 191) && (c < 224)) {
ret += String.fromCharCode(((c & 31) << 6) | (b[i+1] & 63));
++i;
}
else {
ret += String.fromCharCode(((c & 15) << 12) | ((b[i+1] & 63) << 6) | (b[i+2] & 63));
i += 2;
}
}
return ret;
}
// Set the private key fields N, e, and d from hex strings
function RSASetPrivate(N,E,D) {
if(N != null && E != null && N.length > 0 && E.length > 0) {
this.n = parseBigInt(N,16);
this.e = parseInt(E,16);
this.d = parseBigInt(D,16);
}
else
console.error("Invalid RSA private key");
}
// Set the private key fields N, e, d and CRT params from hex strings
function RSASetPrivateEx(N,E,D,P,Q,DP,DQ,C) {
if(N != null && E != null && N.length > 0 && E.length > 0) {
this.n = parseBigInt(N,16);
this.e = parseInt(E,16);
this.d = parseBigInt(D,16);
this.p = parseBigInt(P,16);
this.q = parseBigInt(Q,16);
this.dmp1 = parseBigInt(DP,16);
this.dmq1 = parseBigInt(DQ,16);
this.coeff = parseBigInt(C,16);
}
else
console.error("Invalid RSA private key");
}
// Generate a new random private key B bits long, using public expt E
function RSAGenerate(B,E) {
var rng = new SecureRandom();
var qs = B>>1;
this.e = parseInt(E,16);
var ee = new BigInteger(E,16);
for(;;) {
for(;;) {
this.p = new BigInteger(B-qs,1,rng);
if(this.p.subtract(BigInteger.ONE).gcd(ee).compareTo(BigInteger.ONE) == 0 && this.p.isProbablePrime(10)) break;
}
for(;;) {
this.q = new BigInteger(qs,1,rng);
if(this.q.subtract(BigInteger.ONE).gcd(ee).compareTo(BigInteger.ONE) == 0 && this.q.isProbablePrime(10)) break;
}
if(this.p.compareTo(this.q) <= 0) {
var t = this.p;
this.p = this.q;
this.q = t;
}
var p1 = this.p.subtract(BigInteger.ONE);
var q1 = this.q.subtract(BigInteger.ONE);
var phi = p1.multiply(q1);
if(phi.gcd(ee).compareTo(BigInteger.ONE) == 0) {
this.n = this.p.multiply(this.q);
this.d = ee.modInverse(phi);
this.dmp1 = this.d.mod(p1);
this.dmq1 = this.d.mod(q1);
this.coeff = this.q.modInverse(this.p);
break;
}
}
}
// Perform raw private operation on "x": return x^d (mod n)
function RSADoPrivate(x) {
if(this.p == null || this.q == null)
return x.modPow(this.d, this.n);
// TODO: re-calculate any missing CRT params
var xp = x.mod(this.p).modPow(this.dmp1, this.p);
var xq = x.mod(this.q).modPow(this.dmq1, this.q);
while(xp.compareTo(xq) < 0)
xp = xp.add(this.p);
return xp.subtract(xq).multiply(this.coeff).mod(this.p).multiply(this.q).add(xq);
}
// Return the PKCS#1 RSA decryption of "ctext".
// "ctext" is an even-length hex string and the output is a plain string.
function RSADecrypt(ctext) {
var c = parseBigInt(ctext, 16);
var m = this.doPrivate(c);
if(m == null) return null;
return pkcs1unpad2(m, (this.n.bitLength()+7)>>3);
}
// Return the PKCS#1 RSA decryption of "ctext".
// "ctext" is a Base64-encoded string and the output is a plain string.
//function RSAB64Decrypt(ctext) {
// var h = b64tohex(ctext);
// if(h) return this.decrypt(h); else return null;
//}
// protected
RSAKey.prototype.doPrivate = RSADoPrivate;
// public
RSAKey.prototype.setPrivate = RSASetPrivate;
RSAKey.prototype.setPrivateEx = RSASetPrivateEx;
RSAKey.prototype.generate = RSAGenerate;
RSAKey.prototype.decrypt = RSADecrypt;
//RSAKey.prototype.b64_decrypt = RSAB64Decrypt;
// Copyright (c) 2011 Kevin M Burns Jr.
// All Rights Reserved.
// See "LICENSE" for details.
//
// Extension to jsbn which adds facilities for asynchronous RSA key generation
// Primarily created to avoid execution timeout on mobile devices
//
// http://www-cs-students.stanford.edu/~tjw/jsbn/
//
// ---
(function(){
// Generate a new random private key B bits long, using public expt E
var RSAGenerateAsync = function (B, E, callback) {
//var rng = new SeededRandom();
var rng = new SecureRandom();
var qs = B >> 1;
this.e = parseInt(E, 16);
var ee = new BigInteger(E, 16);
var rsa = this;
// These functions have non-descript names because they were originally for(;;) loops.
// I don't know about cryptography to give them better names than loop1-4.
var loop1 = function() {
var loop4 = function() {
if (rsa.p.compareTo(rsa.q) <= 0) {
var t = rsa.p;
rsa.p = rsa.q;
rsa.q = t;
}
var p1 = rsa.p.subtract(BigInteger.ONE);
var q1 = rsa.q.subtract(BigInteger.ONE);
var phi = p1.multiply(q1);
if (phi.gcd(ee).compareTo(BigInteger.ONE) == 0) {
rsa.n = rsa.p.multiply(rsa.q);
rsa.d = ee.modInverse(phi);
rsa.dmp1 = rsa.d.mod(p1);
rsa.dmq1 = rsa.d.mod(q1);
rsa.coeff = rsa.q.modInverse(rsa.p);
setTimeout(function(){callback()},0); // escape
} else {
setTimeout(loop1,0);
}
};
var loop3 = function() {
rsa.q = nbi();
rsa.q.fromNumberAsync(qs, 1, rng, function(){
rsa.q.subtract(BigInteger.ONE).gcda(ee, function(r){
if (r.compareTo(BigInteger.ONE) == 0 && rsa.q.isProbablePrime(10)) {
setTimeout(loop4,0);
} else {
setTimeout(loop3,0);
}
});
});
};
var loop2 = function() {
rsa.p = nbi();
rsa.p.fromNumberAsync(B - qs, 1, rng, function(){
rsa.p.subtract(BigInteger.ONE).gcda(ee, function(r){
if (r.compareTo(BigInteger.ONE) == 0 && rsa.p.isProbablePrime(10)) {
setTimeout(loop3,0);
} else {
setTimeout(loop2,0);
}
});
});
};
setTimeout(loop2,0);
};
setTimeout(loop1,0);
};
RSAKey.prototype.generateAsync = RSAGenerateAsync;
// Public API method
var bnGCDAsync = function (a, callback) {
var x = (this.s < 0) ? this.negate() : this.clone();
var y = (a.s < 0) ? a.negate() : a.clone();
if (x.compareTo(y) < 0) {
var t = x;
x = y;
y = t;
}
var i = x.getLowestSetBit(),
g = y.getLowestSetBit();
if (g < 0) {
callback(x);
return;
}
if (i < g) g = i;
if (g > 0) {
x.rShiftTo(g, x);
y.rShiftTo(g, y);
}
// Workhorse of the algorithm, gets called 200 - 800 times per 512 bit keygen.
var gcda1 = function() {
if ((i = x.getLowestSetBit()) > 0){ x.rShiftTo(i, x); }
if ((i = y.getLowestSetBit()) > 0){ y.rShiftTo(i, y); }
if (x.compareTo(y) >= 0) {
x.subTo(y, x);
x.rShiftTo(1, x);
} else {
y.subTo(x, y);
y.rShiftTo(1, y);
}
if(!(x.signum() > 0)) {
if (g > 0) y.lShiftTo(g, y);
setTimeout(function(){callback(y)},0); // escape
} else {
setTimeout(gcda1,0);
}
};
setTimeout(gcda1,10);
};
BigInteger.prototype.gcda = bnGCDAsync;
// (protected) alternate constructor
var bnpFromNumberAsync = function (a,b,c,callback) {
if("number" == typeof b) {
if(a < 2) {
this.fromInt(1);
} else {
this.fromNumber(a,c);
if(!this.testBit(a-1)){
this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this);
}
if(this.isEven()) {
this.dAddOffset(1,0);
}
var bnp = this;
var bnpfn1 = function(){
bnp.dAddOffset(2,0);
if(bnp.bitLength() > a) bnp.subTo(BigInteger.ONE.shiftLeft(a-1),bnp);
if(bnp.isProbablePrime(b)) {
setTimeout(function(){callback()},0); // escape
} else {
setTimeout(bnpfn1,0);
}
};
setTimeout(bnpfn1,0);
}
} else {
var x = new Array(), t = a&7;
x.length = (a>>3)+1;
b.nextBytes(x);
if(t > 0) x[0] &= ((1<<t)-1); else x[0] = 0;
this.fromString(x,256);
}
};
BigInteger.prototype.fromNumberAsync = bnpFromNumberAsync;
})();var b64map="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var b64pad="=";
function hex2b64(h) {
var i;
var c;
var ret = "";
for(i = 0; i+3 <= h.length; i+=3) {
c = parseInt(h.substring(i,i+3),16);
ret += b64map.charAt(c >> 6) + b64map.charAt(c & 63);
}
if(i+1 == h.length) {
c = parseInt(h.substring(i,i+1),16);
ret += b64map.charAt(c << 2);
}
else if(i+2 == h.length) {
c = parseInt(h.substring(i,i+2),16);
ret += b64map.charAt(c >> 2) + b64map.charAt((c & 3) << 4);
}
while((ret.length & 3) > 0) ret += b64pad;
return ret;
}
// convert a base64 string to hex
function b64tohex(s) {
var ret = ""
var i;
var k = 0; // b64 state, 0-3
var slop;
for(i = 0; i < s.length; ++i) {
if(s.charAt(i) == b64pad) break;
v = b64map.indexOf(s.charAt(i));
if(v < 0) continue;
if(k == 0) {
ret += int2char(v >> 2);
slop = v & 3;
k = 1;
}
else if(k == 1) {
ret += int2char((slop << 2) | (v >> 4));
slop = v & 0xf;
k = 2;
}
else if(k == 2) {
ret += int2char(slop);
ret += int2char(v >> 2);
slop = v & 3;
k = 3;
}
else {
ret += int2char((slop << 2) | (v >> 4));
ret += int2char(v & 0xf);
k = 0;
}
}
if(k == 1)
ret += int2char(slop << 2);
return ret;
}
// convert a base64 string to a byte/number array
function b64toBA(s) {
//piggyback on b64tohex for now, optimize later
var h = b64tohex(s);
var i;
var a = new Array();
for(i = 0; 2*i < h.length; ++i) {
a[i] = parseInt(h.substring(2*i,2*i+2),16);
}
return a;
}
/*! asn1-1.0.2.js (c) 2013 Kenji Urushima | kjur.github.com/jsrsasign/license
*/
var JSX = JSX || {};
JSX.env = JSX.env || {};
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/*
* asn1.js - ASN.1 DER encoder classes
*
* Copyright (c) 2013 Kenji Urushima (kenji.urushima@gmail.com)
*
* This software is licensed under the terms of the MIT License.
* http://kjur.github.com/jsrsasign/license
*
* The above copyright and license notice shall be
* included in all copies or substantial portions of the Software.
*/
/**
* @fileOverview
* @name asn1-1.0.js
* @author Kenji Urushima kenji.urushima@gmail.com
* @version 1.0.2 (2013-May-30)
* @since 2.1
* @license <a href="http://kjur.github.io/jsrsasign/license/">MIT License</a>
*/
/**
* kjur's class library name space
* <p>
* This name space provides following name spaces:
* <ul>
* <li>{@link KJUR.asn1} - ASN.1 primitive hexadecimal encoder</li>
* <li>{@link KJUR.asn1.x509} - ASN.1 structure for X.509 certificate and CRL</li>
* <li>{@link KJUR.crypto} - Java Cryptographic Extension(JCE) style MessageDigest/Signature
* class and utilities</li>
* </ul>
* </p>
* NOTE: Please ignore method summary and document of this namespace. This caused by a bug of jsdoc2.
* @name KJUR
* @namespace kjur's class library name space
*/
if (typeof KJUR == "undefined" || !KJUR) KJUR = {};
/**
* kjur's ASN.1 class library name space
* <p>
* This is ITU-T X.690 ASN.1 DER encoder class library and
* class structure and methods is very similar to
* org.bouncycastle.asn1 package of
* well known BouncyCaslte Cryptography Library.
*
* <h4>PROVIDING ASN.1 PRIMITIVES</h4>
* Here are ASN.1 DER primitive classes.
* <ul>
* <li>{@link KJUR.asn1.DERBoolean}</li>
* <li>{@link KJUR.asn1.DERInteger}</li>
* <li>{@link KJUR.asn1.DERBitString}</li>
* <li>{@link KJUR.asn1.DEROctetString}</li>
* <li>{@link KJUR.asn1.DERNull}</li>
* <li>{@link KJUR.asn1.DERObjectIdentifier}</li>
* <li>{@link KJUR.asn1.DERUTF8String}</li>
* <li>{@link KJUR.asn1.DERNumericString}</li>
* <li>{@link KJUR.asn1.DERPrintableString}</li>
* <li>{@link KJUR.asn1.DERTeletexString}</li>
* <li>{@link KJUR.asn1.DERIA5String}</li>
* <li>{@link KJUR.asn1.DERUTCTime}</li>
* <li>{@link KJUR.asn1.DERGeneralizedTime}</li>
* <li>{@link KJUR.asn1.DERSequence}</li>
* <li>{@link KJUR.asn1.DERSet}</li>
* </ul>
*
* <h4>OTHER ASN.1 CLASSES</h4>
* <ul>
* <li>{@link KJUR.asn1.ASN1Object}</li>
* <li>{@link KJUR.asn1.DERAbstractString}</li>
* <li>{@link KJUR.asn1.DERAbstractTime}</li>
* <li>{@link KJUR.asn1.DERAbstractStructured}</li>
* <li>{@link KJUR.asn1.DERTaggedObject}</li>
* </ul>
* </p>
* NOTE: Please ignore method summary and document of this namespace. This caused by a bug of jsdoc2.
* @name KJUR.asn1
* @namespace
*/
if (typeof KJUR.asn1 == "undefined" || !KJUR.asn1) KJUR.asn1 = {};
/**
* ASN1 utilities class
* @name KJUR.asn1.ASN1Util
* @classs ASN1 utilities class
* @since asn1 1.0.2
*/
KJUR.asn1.ASN1Util = new function() {
this.integerToByteHex = function(i) {
var h = i.toString(16);
if ((h.length % 2) == 1) h = '0' + h;
return h;
};
this.bigIntToMinTwosComplementsHex = function(bigIntegerValue) {
var h = bigIntegerValue.toString(16);
if (h.substr(0, 1) != '-') {
if (h.length % 2 == 1) {
h = '0' + h;
} else {
if (! h.match(/^[0-7]/)) {
h = '00' + h;
}
}
} else {
var hPos = h.substr(1);
var xorLen = hPos.length;
if (xorLen % 2 == 1) {
xorLen += 1;
} else {
if (! h.match(/^[0-7]/)) {
xorLen += 2;
}
}
var hMask = '';
for (var i = 0; i < xorLen; i++) {
hMask += 'f';
}
var biMask = new BigInteger(hMask, 16);
var biNeg = biMask.xor(bigIntegerValue).add(BigInteger.ONE);
h = biNeg.toString(16).replace(/^-/, '');
}
return h;
};
/**
* get PEM string from hexadecimal data and header string
* @name getPEMStringFromHex
* @memberOf KJUR.asn1.ASN1Util
* @function
* @param {String} dataHex hexadecimal string of PEM body
* @param {String} pemHeader PEM header string (ex. 'RSA PRIVATE KEY')
* @return {String} PEM formatted string of input data
* @description
* @example
* var pem = KJUR.asn1.ASN1Util.getPEMStringFromHex('616161', 'RSA PRIVATE KEY');
* // value of pem will be:
* -----BEGIN PRIVATE KEY-----
* YWFh
* -----END PRIVATE KEY-----
*/
this.getPEMStringFromHex = function(dataHex, pemHeader) {
var dataWA = CryptoJS.enc.Hex.parse(dataHex);
var dataB64 = CryptoJS.enc.Base64.stringify(dataWA);
var pemBody = dataB64.replace(/(.{64})/g, "$1\r\n");
pemBody = pemBody.replace(/\r\n$/, '');
return "-----BEGIN " + pemHeader + "-----\r\n" +
pemBody +
"\r\n-----END " + pemHeader + "-----\r\n";
};
};
// ********************************************************************
// Abstract ASN.1 Classes
// ********************************************************************
// ********************************************************************
/**
* base class for ASN.1 DER encoder object
* @name KJUR.asn1.ASN1Object
* @class base class for ASN.1 DER encoder object
* @property {Boolean} isModified flag whether internal data was changed
* @property {String} hTLV hexadecimal string of ASN.1 TLV
* @property {String} hT hexadecimal string of ASN.1 TLV tag(T)
* @property {String} hL hexadecimal string of ASN.1 TLV length(L)
* @property {String} hV hexadecimal string of ASN.1 TLV value(V)
* @description
*/
KJUR.asn1.ASN1Object = function() {
var isModified = true;
var hTLV = null;
var hT = '00'
var hL = '00';
var hV = '';
/**
* get hexadecimal ASN.1 TLV length(L) bytes from TLV value(V)
* @name getLengthHexFromValue
* @memberOf KJUR.asn1.ASN1Object
* @function
* @return {String} hexadecimal string of ASN.1 TLV length(L)
*/
this.getLengthHexFromValue = function() {
if (typeof this.hV == "undefined" || this.hV == null) {
throw "this.hV is null or undefined.";
}
if (this.hV.length % 2 == 1) {
throw "value hex must be even length: n=" + hV.length + ",v=" + this.hV;
}
var n = this.hV.length / 2;
var hN = n.toString(16);
if (hN.length % 2 == 1) {
hN = "0" + hN;
}
if (n < 128) {
return hN;
} else {
var hNlen = hN.length / 2;
if (hNlen > 15) {
throw "ASN.1 length too long to represent by 8x: n = " + n.toString(16);
}
var head = 128 + hNlen;
return head.toString(16) + hN;
}
};
/**
* get hexadecimal string of ASN.1 TLV bytes
* @name getEncodedHex
* @memberOf KJUR.asn1.ASN1Object
* @function
* @return {String} hexadecimal string of ASN.1 TLV
*/
this.getEncodedHex = function() {
if (this.hTLV == null || this.isModified) {
this.hV = this.getFreshValueHex();
this.hL = this.getLengthHexFromValue();
this.hTLV = this.hT + this.hL + this.hV;
this.isModified = false;
//console.error("first time: " + this.hTLV);
}
return this.hTLV;
};
/**
* get hexadecimal string of ASN.1 TLV value(V) bytes
* @name getValueHex
* @memberOf KJUR.asn1.ASN1Object
* @function
* @return {String} hexadecimal string of ASN.1 TLV value(V) bytes
*/
this.getValueHex = function() {
this.getEncodedHex();
return this.hV;
}
this.getFreshValueHex = function() {
return '';
};
};
// == BEGIN DERAbstractString ================================================
/**
* base class for ASN.1 DER string classes
* @name KJUR.asn1.DERAbstractString
* @class base class for ASN.1 DER string classes
* @param {Array} params associative array of parameters (ex. {'str': 'aaa'})
* @property {String} s internal string of value
* @extends KJUR.asn1.ASN1Object
* @description
* <br/>
* As for argument 'params' for constructor, you can specify one of
* following properties:
* <ul>
* <li>str - specify initial ASN.1 value(V) by a string</li>
* <li>hex - specify initial ASN.1 value(V) by a hexadecimal string</li>
* </ul>
* NOTE: 'params' can be omitted.
*/
KJUR.asn1.DERAbstractString = function(params) {
KJUR.asn1.DERAbstractString.superclass.constructor.call(this);
var s = null;
var hV = null;
/**
* get string value of this string object
* @name getString
* @memberOf KJUR.asn1.DERAbstractString
* @function
* @return {String} string value of this string object
*/
this.getString = function() {
return this.s;
};
/**
* set value by a string
* @name setString
* @memberOf KJUR.asn1.DERAbstractString
* @function
* @param {String} newS value by a string to set
*/
this.setString = function(newS) {
this.hTLV = null;
this.isModified = true;
this.s = newS;
this.hV = stohex(this.s);
};
/**
* set value by a hexadecimal string
* @name setStringHex
* @memberOf KJUR.asn1.DERAbstractString
* @function
* @param {String} newHexString value by a hexadecimal string to set
*/
this.setStringHex = function(newHexString) {
this.hTLV = null;
this.isModified = true;
this.s = null;
this.hV = newHexString;
};
this.getFreshValueHex = function() {
return this.hV;
};
if (typeof params != "undefined") {
if (typeof params['str'] != "undefined") {
this.setString(params['str']);
} else if (typeof params['hex'] != "undefined") {
this.setStringHex(params['hex']);
}
}
};
JSX.extend(KJUR.asn1.DERAbstractString, KJUR.asn1.ASN1Object);
// == END DERAbstractString ================================================
// == BEGIN DERAbstractTime ==================================================
/**
* base class for ASN.1 DER Generalized/UTCTime class
* @name KJUR.asn1.DERAbstractTime
* @class base class for ASN.1 DER Generalized/UTCTime class
* @param {Array} params associative array of parameters (ex. {'str': '130430235959Z'})
* @extends KJUR.asn1.ASN1Object
* @description
* @see KJUR.asn1.ASN1Object - superclass
*/
KJUR.asn1.DERAbstractTime = function(params) {
KJUR.asn1.DERAbstractTime.superclass.constructor.call(this);
var s = null;
var date = null;
// --- PRIVATE METHODS --------------------
this.localDateToUTC = function(d) {
utc = d.getTime() + (d.getTimezoneOffset() * 60000);
var utcDate = new Date(utc);
return utcDate;
};
this.formatDate = function(dateObject, type) {
var pad = this.zeroPadding;
var d = this.localDateToUTC(dateObject);
var year = String(d.getFullYear());
if (type == 'utc') year = year.substr(2, 2);
var month = pad(String(d.getMonth() + 1), 2);
var day = pad(String(d.getDate()), 2);
var hour = pad(String(d.getHours()), 2);
var min = pad(String(d.getMinutes()), 2);
var sec = pad(String(d.getSeconds()), 2);
return year + month + day + hour + min + sec + 'Z';
};
this.zeroPadding = function(s, len) {
if (s.length >= len) return s;
return new Array(len - s.length + 1).join('0') + s;
};
// --- PUBLIC METHODS --------------------
/**
* get string value of this string object
* @name getString
* @memberOf KJUR.asn1.DERAbstractTime
* @function
* @return {String} string value of this time object
*/
this.getString = function() {
return this.s;
};
/**
* set value by a string
* @name setString
* @memberOf KJUR.asn1.DERAbstractTime
* @function
* @param {String} newS value by a string to set such like "130430235959Z"
*/
this.setString = function(newS) {
this.hTLV = null;
this.isModified = true;
this.s = newS;
this.hV = stohex(this.s);
};
/**
* set value by a Date object
* @name setByDateValue
* @memberOf KJUR.asn1.DERAbstractTime
* @function
* @param {Integer} year year of date (ex. 2013)
* @param {Integer} month month of date between 1 and 12 (ex. 12)
* @param {Integer} day day of month
* @param {Integer} hour hours of date
* @param {Integer} min minutes of date
* @param {Integer} sec seconds of date
*/
this.setByDateValue = function(year, month, day, hour, min, sec) {
var dateObject = new Date(Date.UTC(year, month - 1, day, hour, min, sec, 0));
this.setByDate(dateObject);
};
this.getFreshValueHex = function() {
return this.hV;
};
};
JSX.extend(KJUR.asn1.DERAbstractTime, KJUR.asn1.ASN1Object);
// == END DERAbstractTime ==================================================
// == BEGIN DERAbstractStructured ============================================
/**
* base class for ASN.1 DER structured class
* @name KJUR.asn1.DERAbstractStructured
* @class base class for ASN.1 DER structured class
* @property {Array} asn1Array internal array of ASN1Object
* @extends KJUR.asn1.ASN1Object
* @description
* @see KJUR.asn1.ASN1Object - superclass
*/
KJUR.asn1.DERAbstractStructured = function(params) {
KJUR.asn1.DERAbstractString.superclass.constructor.call(this);
var asn1Array = null;
/**
* set value by array of ASN1Object
* @name setByASN1ObjectArray
* @memberOf KJUR.asn1.DERAbstractStructured
* @function
* @param {array} asn1ObjectArray array of ASN1Object to set
*/
this.setByASN1ObjectArray = function(asn1ObjectArray) {
this.hTLV = null;
this.isModified = true;
this.asn1Array = asn1ObjectArray;
};
/**
* append an ASN1Object to internal array
* @name appendASN1Object
* @memberOf KJUR.asn1.DERAbstractStructured
* @function
* @param {ASN1Object} asn1Object to add
*/
this.appendASN1Object = function(asn1Object) {
this.hTLV = null;
this.isModified = true;
this.asn1Array.push(asn1Object);
};
this.asn1Array = new Array();
if (typeof params != "undefined") {
if (typeof params['array'] != "undefined") {
this.asn1Array = params['array'];
}
}
};
JSX.extend(KJUR.asn1.DERAbstractStructured, KJUR.asn1.ASN1Object);
// ********************************************************************
// ASN.1 Object Classes
// ********************************************************************
// ********************************************************************
/**
* class for ASN.1 DER Boolean
* @name KJUR.asn1.DERBoolean
* @class class for ASN.1 DER Boolean
* @extends KJUR.asn1.ASN1Object
* @description
* @see KJUR.asn1.ASN1Object - superclass
*/
KJUR.asn1.DERBoolean = function() {
KJUR.asn1.DERBoolean.superclass.constructor.call(this);
this.hT = "01";
this.hTLV = "0101ff";
};
JSX.extend(KJUR.asn1.DERBoolean, KJUR.asn1.ASN1Object);
// ********************************************************************
/**
* class for ASN.1 DER Integer
* @name KJUR.asn1.DERInteger
* @class class for ASN.1 DER Integer
* @extends KJUR.asn1.ASN1Object
* @description
* <br/>
* As for argument 'params' for constructor, you can specify one of
* following properties:
* <ul>
* <li>int - specify initial ASN.1 value(V) by integer value</li>
* <li>bigint - specify initial ASN.1 value(V) by BigInteger object</li>
* <li>hex - specify initial ASN.1 value(V) by a hexadecimal string</li>
* </ul>
* NOTE: 'params' can be omitted.
*/
KJUR.asn1.DERInteger = function(params) {
KJUR.asn1.DERInteger.superclass.constructor.call(this);
this.hT = "02";
/**
* set value by Tom Wu's BigInteger object
* @name setByBigInteger
* @memberOf KJUR.asn1.DERInteger
* @function
* @param {BigInteger} bigIntegerValue to set
*/
this.setByBigInteger = function(bigIntegerValue) {
this.hTLV = null;
this.isModified = true;
this.hV = KJUR.asn1.ASN1Util.bigIntToMinTwosComplementsHex(bigIntegerValue);
};
/**
* set value by integer value
* @name setByInteger
* @memberOf KJUR.asn1.DERInteger
* @function
* @param {Integer} integer value to set
*/
this.setByInteger = function(intValue) {
var bi = new BigInteger(String(intValue), 10);
this.setByBigInteger(bi);
};
/**
* set value by integer value
* @name setValueHex
* @memberOf KJUR.asn1.DERInteger
* @function
* @param {String} hexadecimal string of integer value
* @description
* <br/>
* NOTE: Value shall be represented by minimum octet length of
* two's complement representation.
*/
this.setValueHex = function(newHexString) {
this.hV = newHexString;
};
this.getFreshValueHex = function() {
return this.hV;
};
if (typeof params != "undefined") {
if (typeof params['bigint'] != "undefined") {
this.setByBigInteger(params['bigint']);
} else if (typeof params['int'] != "undefined") {
this.setByInteger(params['int']);
} else if (typeof params['hex'] != "undefined") {
this.setValueHex(params['hex']);
}
}
};
JSX.extend(KJUR.asn1.DERInteger, KJUR.asn1.ASN1Object);
// ********************************************************************
/**
* class for ASN.1 DER encoded BitString primitive
* @name KJUR.asn1.DERBitString
* @class class for ASN.1 DER encoded BitString primitive
* @extends KJUR.asn1.ASN1Object
* @description
* <br/>
* As for argument 'params' for constructor, you can specify one of
* following properties:
* <ul>
* <li>bin - specify binary string (ex. '10111')</li>
* <li>array - specify array of boolean (ex. [true,false,true,true])</li>
* <li>hex - specify hexadecimal string of ASN.1 value(V) including unused bits</li>
* </ul>
* NOTE: 'params' can be omitted.
*/
KJUR.asn1.DERBitString = function(params) {
KJUR.asn1.DERBitString.superclass.constructor.call(this);
this.hT = "03";
/**
* set ASN.1 value(V) by a hexadecimal string including unused bits
* @name setHexValueIncludingUnusedBits
* @memberOf KJUR.asn1.DERBitString
* @function
* @param {String} newHexStringIncludingUnusedBits
*/
this.setHexValueIncludingUnusedBits = function(newHexStringIncludingUnusedBits) {
this.hTLV = null;
this.isModified = true;
this.hV = newHexStringIncludingUnusedBits;
};
/**
* set ASN.1 value(V) by unused bit and hexadecimal string of value
* @name setUnusedBitsAndHexValue
* @memberOf KJUR.asn1.DERBitString
* @function
* @param {Integer} unusedBits
* @param {String} hValue
*/
this.setUnusedBitsAndHexValue = function(unusedBits, hValue) {
if (unusedBits < 0 || 7 < unusedBits) {
throw "unused bits shall be from 0 to 7: u = " + unusedBits;
}
var hUnusedBits = "0" + unusedBits;
this.hTLV = null;
this.isModified = true;
this.hV = hUnusedBits + hValue;
};
/**
* set ASN.1 DER BitString by binary string
* @name setByBinaryString
* @memberOf KJUR.asn1.DERBitString
* @function
* @param {String} binaryString binary value string (i.e. '10111')
* @description
* Its unused bits will be calculated automatically by length of
* 'binaryValue'. <br/>
* NOTE: Trailing zeros '0' will be ignored.
*/
this.setByBinaryString = function(binaryString) {
binaryString = binaryString.replace(/0+$/, '');
var unusedBits = 8 - binaryString.length % 8;
if (unusedBits == 8) unusedBits = 0;
for (var i = 0; i <= unusedBits; i++) {
binaryString += '0';
}
var h = '';
for (var i = 0; i < binaryString.length - 1; i += 8) {
var b = binaryString.substr(i, 8);
var x = parseInt(b, 2).toString(16);
if (x.length == 1) x = '0' + x;
h += x;
}
this.hTLV = null;
this.isModified = true;
this.hV = '0' + unusedBits + h;
};
/**
* set ASN.1 TLV value(V) by an array of boolean
* @name setByBooleanArray
* @memberOf KJUR.asn1.DERBitString
* @function
* @param {array} booleanArray array of boolean (ex. [true, false, true])
* @description
* NOTE: Trailing falses will be ignored.
*/
this.setByBooleanArray = function(booleanArray) {
var s = '';
for (var i = 0; i < booleanArray.length; i++) {
if (booleanArray[i] == true) {
s += '1';
} else {
s += '0';
}
}
this.setByBinaryString(s);
};
/**
* generate an array of false with specified length
* @name newFalseArray
* @memberOf KJUR.asn1.DERBitString
* @function
* @param {Integer} nLength length of array to generate
* @return {array} array of boolean faluse
* @description
* This static method may be useful to initialize boolean array.
*/
this.newFalseArray = function(nLength) {
var a = new Array(nLength);
for (var i = 0; i < nLength; i++) {
a[i] = false;
}
return a;
};
this.getFreshValueHex = function() {
return this.hV;
};
if (typeof params != "undefined") {
if (typeof params['hex'] != "undefined") {
this.setHexValueIncludingUnusedBits(params['hex']);
} else if (typeof params['bin'] != "undefined") {
this.setByBinaryString(params['bin']);
} else if (typeof params['array'] != "undefined") {
this.setByBooleanArray(params['array']);
}
}
};
JSX.extend(KJUR.asn1.DERBitString, KJUR.asn1.ASN1Object);
// ********************************************************************
/**
* class for ASN.1 DER OctetString
* @name KJUR.asn1.DEROctetString
* @class class for ASN.1 DER OctetString
* @param {Array} params associative array of parameters (ex. {'str': 'aaa'})
* @extends KJUR.asn1.DERAbstractString
* @description
* @see KJUR.asn1.DERAbstractString - superclass
*/
KJUR.asn1.DEROctetString = function(params) {
KJUR.asn1.DEROctetString.superclass.constructor.call(this, params);
this.hT = "04";
};
JSX.extend(KJUR.asn1.DEROctetString, KJUR.asn1.DERAbstractString);
// ********************************************************************
/**
* class for ASN.1 DER Null
* @name KJUR.asn1.DERNull
* @class class for ASN.1 DER Null
* @extends KJUR.asn1.ASN1Object
* @description
* @see KJUR.asn1.ASN1Object - superclass
*/
KJUR.asn1.DERNull = function() {
KJUR.asn1.DERNull.superclass.constructor.call(this);
this.hT = "05";
this.hTLV = "0500";
};
JSX.extend(KJUR.asn1.DERNull, KJUR.asn1.ASN1Object);
// ********************************************************************
/**
* class for ASN.1 DER ObjectIdentifier
* @name KJUR.asn1.DERObjectIdentifier
* @class class for ASN.1 DER ObjectIdentifier
* @param {Array} params associative array of parameters (ex. {'oid': '2.5.4.5'})
* @extends KJUR.asn1.ASN1Object
* @description
* <br/>
* As for argument 'params' for constructor, you can specify one of
* following properties:
* <ul>
* <li>oid - specify initial ASN.1 value(V) by a oid string (ex. 2.5.4.13)</li>
* <li>hex - specify initial ASN.1 value(V) by a hexadecimal string</li>
* </ul>
* NOTE: 'params' can be omitted.
*/
KJUR.asn1.DERObjectIdentifier = function(params) {
var itox = function(i) {
var h = i.toString(16);
if (h.length == 1) h = '0' + h;
return h;
};
var roidtox = function(roid) {
var h = '';
var bi = new BigInteger(roid, 10);
var b = bi.toString(2);
var padLen = 7 - b.length % 7;
if (padLen == 7) padLen = 0;
var bPad = '';
for (var i = 0; i < padLen; i++) bPad += '0';
b = bPad + b;
for (var i = 0; i < b.length - 1; i += 7) {
var b8 = b.substr(i, 7);
if (i != b.length - 7) b8 = '1' + b8;
h += itox(parseInt(b8, 2));
}
return h;
}
KJUR.asn1.DERObjectIdentifier.superclass.constructor.call(this);
this.hT = "06";
/**
* set value by a hexadecimal string
* @name setValueHex
* @memberOf KJUR.asn1.DERObjectIdentifier
* @function
* @param {String} newHexString hexadecimal value of OID bytes
*/
this.setValueHex = function(newHexString) {
this.hTLV = null;
this.isModified = true;
this.s = null;
this.hV = newHexString;
};
/**
* set value by a OID string
* @name setValueOidString
* @memberOf KJUR.asn1.DERObjectIdentifier
* @function
* @param {String} oidString OID string (ex. 2.5.4.13)
*/
this.setValueOidString = function(oidString) {
if (! oidString.match(/^[0-9.]+$/)) {
throw "malformed oid string: " + oidString;
}
var h = '';
var a = oidString.split('.');
var i0 = parseInt(a[0]) * 40 + parseInt(a[1]);
h += itox(i0);
a.splice(0, 2);
for (var i = 0; i < a.length; i++) {
h += roidtox(a[i]);
}
this.hTLV = null;
this.isModified = true;
this.s = null;
this.hV = h;
};
/**
* set value by a OID name
* @name setValueName
* @memberOf KJUR.asn1.DERObjectIdentifier
* @function
* @param {String} oidName OID name (ex. 'serverAuth')
* @since 1.0.1
* @description
* OID name shall be defined in 'KJUR.asn1.x509.OID.name2oidList'.
* Otherwise raise error.
*/
this.setValueName = function(oidName) {
if (typeof KJUR.asn1.x509.OID.name2oidList[oidName] != "undefined") {
var oid = KJUR.asn1.x509.OID.name2oidList[oidName];
this.setValueOidString(oid);
} else {
throw "DERObjectIdentifier oidName undefined: " + oidName;
}
};
this.getFreshValueHex = function() {
return this.hV;
};
if (typeof params != "undefined") {
if (typeof params['oid'] != "undefined") {
this.setValueOidString(params['oid']);
} else if (typeof params['hex'] != "undefined") {
this.setValueHex(params['hex']);
} else if (typeof params['name'] != "undefined") {
this.setValueName(params['name']);
}
}
};
JSX.extend(KJUR.asn1.DERObjectIdentifier, KJUR.asn1.ASN1Object);
// ********************************************************************
/**
* class for ASN.1 DER UTF8String
* @name KJUR.asn1.DERUTF8String
* @class class for ASN.1 DER UTF8String
* @param {Array} params associative array of parameters (ex. {'str': 'aaa'})
* @extends KJUR.asn1.DERAbstractString
* @description
* @see KJUR.asn1.DERAbstractString - superclass
*/
KJUR.asn1.DERUTF8String = function(params) {
KJUR.asn1.DERUTF8String.superclass.constructor.call(this, params);
this.hT = "0c";
};
JSX.extend(KJUR.asn1.DERUTF8String, KJUR.asn1.DERAbstractString);
// ********************************************************************
/**
* class for ASN.1 DER NumericString
* @name KJUR.asn1.DERNumericString
* @class class for ASN.1 DER NumericString
* @param {Array} params associative array of parameters (ex. {'str': 'aaa'})
* @extends KJUR.asn1.DERAbstractString
* @description
* @see KJUR.asn1.DERAbstractString - superclass
*/
KJUR.asn1.DERNumericString = function(params) {
KJUR.asn1.DERNumericString.superclass.constructor.call(this, params);
this.hT = "12";
};
JSX.extend(KJUR.asn1.DERNumericString, KJUR.asn1.DERAbstractString);
// ********************************************************************
/**
* class for ASN.1 DER PrintableString
* @name KJUR.asn1.DERPrintableString
* @class class for ASN.1 DER PrintableString
* @param {Array} params associative array of parameters (ex. {'str': 'aaa'})
* @extends KJUR.asn1.DERAbstractString
* @description
* @see KJUR.asn1.DERAbstractString - superclass
*/
KJUR.asn1.DERPrintableString = function(params) {
KJUR.asn1.DERPrintableString.superclass.constructor.call(this, params);
this.hT = "13";
};
JSX.extend(KJUR.asn1.DERPrintableString, KJUR.asn1.DERAbstractString);
// ********************************************************************
/**
* class for ASN.1 DER TeletexString
* @name KJUR.asn1.DERTeletexString
* @class class for ASN.1 DER TeletexString
* @param {Array} params associative array of parameters (ex. {'str': 'aaa'})
* @extends KJUR.asn1.DERAbstractString
* @description
* @see KJUR.asn1.DERAbstractString - superclass
*/
KJUR.asn1.DERTeletexString = function(params) {
KJUR.asn1.DERTeletexString.superclass.constructor.call(this, params);
this.hT = "14";
};
JSX.extend(KJUR.asn1.DERTeletexString, KJUR.asn1.DERAbstractString);
// ********************************************************************
/**
* class for ASN.1 DER IA5String
* @name KJUR.asn1.DERIA5String
* @class class for ASN.1 DER IA5String
* @param {Array} params associative array of parameters (ex. {'str': 'aaa'})
* @extends KJUR.asn1.DERAbstractString
* @description
* @see KJUR.asn1.DERAbstractString - superclass
*/
KJUR.asn1.DERIA5String = function(params) {
KJUR.asn1.DERIA5String.superclass.constructor.call(this, params);
this.hT = "16";
};
JSX.extend(KJUR.asn1.DERIA5String, KJUR.asn1.DERAbstractString);
// ********************************************************************
/**
* class for ASN.1 DER UTCTime
* @name KJUR.asn1.DERUTCTime
* @class class for ASN.1 DER UTCTime
* @param {Array} params associative array of parameters (ex. {'str': '130430235959Z'})
* @extends KJUR.asn1.DERAbstractTime
* @description
* <br/>
* As for argument 'params' for constructor, you can specify one of
* following properties:
* <ul>
* <li>str - specify initial ASN.1 value(V) by a string (ex.'130430235959Z')</li>
* <li>hex - specify initial ASN.1 value(V) by a hexadecimal string</li>
* <li>date - specify Date object.</li>
* </ul>
* NOTE: 'params' can be omitted.
* <h4>EXAMPLES</h4>
* @example
* var d1 = new KJUR.asn1.DERUTCTime();
* d1.setString('130430125959Z');
*
* var d2 = new KJUR.asn1.DERUTCTime({'str': '130430125959Z'});
*
* var d3 = new KJUR.asn1.DERUTCTime({'date': new Date(Date.UTC(2015, 0, 31, 0, 0, 0, 0))});
*/
KJUR.asn1.DERUTCTime = function(params) {
KJUR.asn1.DERUTCTime.superclass.constructor.call(this, params);
this.hT = "17";
/**
* set value by a Date object
* @name setByDate
* @memberOf KJUR.asn1.DERUTCTime
* @function
* @param {Date} dateObject Date object to set ASN.1 value(V)
*/
this.setByDate = function(dateObject) {
this.hTLV = null;
this.isModified = true;
this.date = dateObject;
this.s = this.formatDate(this.date, 'utc');
this.hV = stohex(this.s);
};
if (typeof params != "undefined") {
if (typeof params['str'] != "undefined") {
this.setString(params['str']);
} else if (typeof params['hex'] != "undefined") {
this.setStringHex(params['hex']);
} else if (typeof params['date'] != "undefined") {
this.setByDate(params['date']);
}
}
};
JSX.extend(KJUR.asn1.DERUTCTime, KJUR.asn1.DERAbstractTime);
// ********************************************************************
/**
* class for ASN.1 DER GeneralizedTime
* @name KJUR.asn1.DERGeneralizedTime
* @class class for ASN.1 DER GeneralizedTime
* @param {Array} params associative array of parameters (ex. {'str': '20130430235959Z'})
* @extends KJUR.asn1.DERAbstractTime
* @description
* <br/>
* As for argument 'params' for constructor, you can specify one of
* following properties:
* <ul>
* <li>str - specify initial ASN.1 value(V) by a string (ex.'20130430235959Z')</li>
* <li>hex - specify initial ASN.1 value(V) by a hexadecimal string</li>
* <li>date - specify Date object.</li>
* </ul>
* NOTE: 'params' can be omitted.
*/
KJUR.asn1.DERGeneralizedTime = function(params) {
KJUR.asn1.DERGeneralizedTime.superclass.constructor.call(this, params);
this.hT = "18";
/**
* set value by a Date object
* @name setByDate
* @memberOf KJUR.asn1.DERGeneralizedTime
* @function
* @param {Date} dateObject Date object to set ASN.1 value(V)
* @example
* When you specify UTC time, use 'Date.UTC' method like this:<br/>
* var o = new DERUTCTime();
* var date = new Date(Date.UTC(2015, 0, 31, 23, 59, 59, 0)); #2015JAN31 23:59:59
* o.setByDate(date);
*/
this.setByDate = function(dateObject) {
this.hTLV = null;
this.isModified = true;
this.date = dateObject;
this.s = this.formatDate(this.date, 'gen');
this.hV = stohex(this.s);
};
if (typeof params != "undefined") {
if (typeof params['str'] != "undefined") {
this.setString(params['str']);
} else if (typeof params['hex'] != "undefined") {
this.setStringHex(params['hex']);
} else if (typeof params['date'] != "undefined") {
this.setByDate(params['date']);
}
}
};
JSX.extend(KJUR.asn1.DERGeneralizedTime, KJUR.asn1.DERAbstractTime);
// ********************************************************************
/**
* class for ASN.1 DER Sequence
* @name KJUR.asn1.DERSequence
* @class class for ASN.1 DER Sequence
* @extends KJUR.asn1.DERAbstractStructured
* @description
* <br/>
* As for argument 'params' for constructor, you can specify one of
* following properties:
* <ul>
* <li>array - specify array of ASN1Object to set elements of content</li>
* </ul>
* NOTE: 'params' can be omitted.
*/
KJUR.asn1.DERSequence = function(params) {
KJUR.asn1.DERSequence.superclass.constructor.call(this, params);
this.hT = "30";
this.getFreshValueHex = function() {
var h = '';
for (var i = 0; i < this.asn1Array.length; i++) {
var asn1Obj = this.asn1Array[i];
h += asn1Obj.getEncodedHex();
}
this.hV = h;
return this.hV;
};
};
JSX.extend(KJUR.asn1.DERSequence, KJUR.asn1.DERAbstractStructured);
// ********************************************************************
/**
* class for ASN.1 DER Set
* @name KJUR.asn1.DERSet
* @class class for ASN.1 DER Set
* @extends KJUR.asn1.DERAbstractStructured
* @description
* <br/>
* As for argument 'params' for constructor, you can specify one of
* following properties:
* <ul>
* <li>array - specify array of ASN1Object to set elements of content</li>
* </ul>
* NOTE: 'params' can be omitted.
*/
KJUR.asn1.DERSet = function(params) {
KJUR.asn1.DERSet.superclass.constructor.call(this, params);
this.hT = "31";
this.getFreshValueHex = function() {
var a = new Array();
for (var i = 0; i < this.asn1Array.length; i++) {
var asn1Obj = this.asn1Array[i];
a.push(asn1Obj.getEncodedHex());
}
a.sort();
this.hV = a.join('');
return this.hV;
};
};
JSX.extend(KJUR.asn1.DERSet, KJUR.asn1.DERAbstractStructured);
// ********************************************************************
/**
* class for ASN.1 DER TaggedObject
* @name KJUR.asn1.DERTaggedObject
* @class class for ASN.1 DER TaggedObject
* @extends KJUR.asn1.ASN1Object
* @description
* <br/>
* Parameter 'tagNoNex' is ASN.1 tag(T) value for this object.
* For example, if you find '[1]' tag in a ASN.1 dump,
* 'tagNoHex' will be 'a1'.
* <br/>
* As for optional argument 'params' for constructor, you can specify *ANY* of
* following properties:
* <ul>
* <li>explicit - specify true if this is explicit tag otherwise false
* (default is 'true').</li>
* <li>tag - specify tag (default is 'a0' which means [0])</li>
* <li>obj - specify ASN1Object which is tagged</li>
* </ul>
* @example
* d1 = new KJUR.asn1.DERUTF8String({'str':'a'});
* d2 = new KJUR.asn1.DERTaggedObject({'obj': d1});
* hex = d2.getEncodedHex();
*/
KJUR.asn1.DERTaggedObject = function(params) {
KJUR.asn1.DERTaggedObject.superclass.constructor.call(this);
this.hT = "a0";
this.hV = '';
this.isExplicit = true;
this.asn1Object = null;
/**
* set value by an ASN1Object
* @name setString
* @memberOf KJUR.asn1.DERTaggedObject
* @function
* @param {Boolean} isExplicitFlag flag for explicit/implicit tag
* @param {Integer} tagNoHex hexadecimal string of ASN.1 tag
* @param {ASN1Object} asn1Object ASN.1 to encapsulate
*/
this.setASN1Object = function(isExplicitFlag, tagNoHex, asn1Object) {
this.hT = tagNoHex;
this.isExplicit = isExplicitFlag;
this.asn1Object = asn1Object;
if (this.isExplicit) {
this.hV = this.asn1Object.getEncodedHex();
this.hTLV = null;
this.isModified = true;
} else {
this.hV = null;
this.hTLV = asn1Object.getEncodedHex();
this.hTLV = this.hTLV.replace(/^../, tagNoHex);
this.isModified = false;
}
};
this.getFreshValueHex = function() {
return this.hV;
};
if (typeof params != "undefined") {
if (typeof params['tag'] != "undefined") {
this.hT = params['tag'];
}
if (typeof params['explicit'] != "undefined") {
this.isExplicit = params['explicit'];
}
if (typeof params['obj'] != "undefined") {
this.asn1Object = params['obj'];
this.setASN1Object(this.isExplicit, this.hT, this.asn1Object);
}
}
};
JSX.extend(KJUR.asn1.DERTaggedObject, KJUR.asn1.ASN1Object);// Hex JavaScript decoder
// Copyright (c) 2008-2013 Lapo Luchini <lapo@lapo.it>
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
/*jshint browser: true, strict: true, immed: true, latedef: true, undef: true, regexdash: false */
(function (undefined) {
"use strict";
var Hex = {},
decoder;
Hex.decode = function(a) {
var i;
if (decoder === undefined) {
var hex = "0123456789ABCDEF",
ignore = " \f\n\r\t\u00A0\u2028\u2029";
decoder = [];
for (i = 0; i < 16; ++i)
decoder[hex.charAt(i)] = i;
hex = hex.toLowerCase();
for (i = 10; i < 16; ++i)
decoder[hex.charAt(i)] = i;
for (i = 0; i < ignore.length; ++i)
decoder[ignore.charAt(i)] = -1;
}
var out = [],
bits = 0,
char_count = 0;
for (i = 0; i < a.length; ++i) {
var c = a.charAt(i);
if (c == '=')
break;
c = decoder[c];
if (c == -1)
continue;
if (c === undefined)
throw 'Illegal character at offset ' + i;
bits |= c;
if (++char_count >= 2) {
out[out.length] = bits;
bits = 0;
char_count = 0;
} else {
bits <<= 4;
}
}
if (char_count)
throw "Hex encoding incomplete: 4 bits missing";
return out;
};
// export globals
window.Hex = Hex;
})();// Base64 JavaScript decoder
// Copyright (c) 2008-2013 Lapo Luchini <lapo@lapo.it>
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
/*jshint browser: true, strict: true, immed: true, latedef: true, undef: true, regexdash: false */
(function (undefined) {
"use strict";
var Base64 = {},
decoder;
Base64.decode = function (a) {
var i;
if (decoder === undefined) {
var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
ignore = "= \f\n\r\t\u00A0\u2028\u2029";
decoder = [];
for (i = 0; i < 64; ++i)
decoder[b64.charAt(i)] = i;
for (i = 0; i < ignore.length; ++i)
decoder[ignore.charAt(i)] = -1;
}
var out = [];
var bits = 0, char_count = 0;
for (i = 0; i < a.length; ++i) {
var c = a.charAt(i);
if (c == '=')
break;
c = decoder[c];
if (c == -1)
continue;
if (c === undefined)
throw 'Illegal character at offset ' + i;
bits |= c;
if (++char_count >= 4) {
out[out.length] = (bits >> 16);
out[out.length] = (bits >> 8) & 0xFF;
out[out.length] = bits & 0xFF;
bits = 0;
char_count = 0;
} else {
bits <<= 6;
}
}
switch (char_count) {
case 1:
throw "Base64 encoding incomplete: at least 2 bits missing";
case 2:
out[out.length] = (bits >> 10);
break;
case 3:
out[out.length] = (bits >> 16);
out[out.length] = (bits >> 8) & 0xFF;
break;
}
return out;
};
Base64.re = /-----BEGIN [^-]+-----([A-Za-z0-9+\/=\s]+)-----END [^-]+-----|begin-base64[^\n]+\n([A-Za-z0-9+\/=\s]+)====/;
Base64.unarmor = function (a) {
var m = Base64.re.exec(a);
if (m) {
if (m[1])
a = m[1];
else if (m[2])
a = m[2];
else
throw "RegExp out of sync";
}
return Base64.decode(a);
};
// export globals
window.Base64 = Base64;
})();// ASN.1 JavaScript decoder
// Copyright (c) 2008-2013 Lapo Luchini <lapo@lapo.it>
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
/*jshint browser: true, strict: true, immed: true, latedef: true, undef: true, regexdash: false */
/*global oids */
(function (undefined) {
"use strict";
var hardLimit = 100,
ellipsis = "\u2026",
DOM = {
tag: function (tagName, className) {
var t = document.createElement(tagName);
t.className = className;
return t;
},
text: function (str) {
return document.createTextNode(str);
}
};
function Stream(enc, pos) {
if (enc instanceof Stream) {
this.enc = enc.enc;
this.pos = enc.pos;
} else {
this.enc = enc;
this.pos = pos;
}
}
Stream.prototype.get = function (pos) {
if (pos === undefined)
pos = this.pos++;
if (pos >= this.enc.length)
throw 'Requesting byte offset ' + pos + ' on a stream of length ' + this.enc.length;
return this.enc[pos];
};
Stream.prototype.hexDigits = "0123456789ABCDEF";
Stream.prototype.hexByte = function (b) {
return this.hexDigits.charAt((b >> 4) & 0xF) + this.hexDigits.charAt(b & 0xF);
};
Stream.prototype.hexDump = function (start, end, raw) {
var s = "";
for (var i = start; i < end; ++i) {
s += this.hexByte(this.get(i));
if (raw !== true)
switch (i & 0xF) {
case 0x7: s += " "; break;
case 0xF: s += "\n"; break;
default: s += " ";
}
}
return s;
};
Stream.prototype.parseStringISO = function (start, end) {
var s = "";
for (var i = start; i < end; ++i)
s += String.fromCharCode(this.get(i));
return s;
};
Stream.prototype.parseStringUTF = function (start, end) {
var s = "";
for (var i = start; i < end; ) {
var c = this.get(i++);
if (c < 128)
s += String.fromCharCode(c);
else if ((c > 191) && (c < 224))
s += String.fromCharCode(((c & 0x1F) << 6) | (this.get(i++) & 0x3F));
else
s += String.fromCharCode(((c & 0x0F) << 12) | ((this.get(i++) & 0x3F) << 6) | (this.get(i++) & 0x3F));
}
return s;
};
Stream.prototype.parseStringBMP = function (start, end) {
var str = ""
for (var i = start; i < end; i += 2) {
var high_byte = this.get(i);
var low_byte = this.get(i + 1);
str += String.fromCharCode( (high_byte << 8) + low_byte );
}
return str;
};
Stream.prototype.reTime = /^((?:1[89]|2\d)?\d\d)(0[1-9]|1[0-2])(0[1-9]|[12]\d|3[01])([01]\d|2[0-3])(?:([0-5]\d)(?:([0-5]\d)(?:[.,](\d{1,3}))?)?)?(Z|[-+](?:[0]\d|1[0-2])([0-5]\d)?)?$/;
Stream.prototype.parseTime = function (start, end) {
var s = this.parseStringISO(start, end),
m = this.reTime.exec(s);
if (!m)
return "Unrecognized time: " + s;
s = m[1] + "-" + m[2] + "-" + m[3] + " " + m[4];
if (m[5]) {
s += ":" + m[5];
if (m[6]) {
s += ":" + m[6];
if (m[7])
s += "." + m[7];
}
}
if (m[8]) {
s += " UTC";
if (m[8] != 'Z') {
s += m[8];
if (m[9])
s += ":" + m[9];
}
}
return s;
};
Stream.prototype.parseInteger = function (start, end) {
//TODO support negative numbers
var len = end - start;
if (len > 4) {
len <<= 3;
var s = this.get(start);
if (s === 0)
len -= 8;
else
while (s < 128) {
s <<= 1;
--len;
}
return "(" + len + " bit)";
}
var n = 0;
for (var i = start; i < end; ++i)
n = (n << 8) | this.get(i);
return n;
};
Stream.prototype.parseBitString = function (start, end) {
var unusedBit = this.get(start),
lenBit = ((end - start - 1) << 3) - unusedBit,
s = "(" + lenBit + " bit)";
if (lenBit <= 20) {
var skip = unusedBit;
s += " ";
for (var i = end - 1; i > start; --i) {
var b = this.get(i);
for (var j = skip; j < 8; ++j)
s += (b >> j) & 1 ? "1" : "0";
skip = 0;
}
}
return s;
};
Stream.prototype.parseOctetString = function (start, end) {
var len = end - start,
s = "(" + len + " byte) ";
if (len > hardLimit)
end = start + hardLimit;
for (var i = start; i < end; ++i)
s += this.hexByte(this.get(i)); //TODO: also try Latin1?
if (len > hardLimit)
s += ellipsis;
return s;
};
Stream.prototype.parseOID = function (start, end) {
var s = '',
n = 0,
bits = 0;
for (var i = start; i < end; ++i) {
var v = this.get(i);
n = (n << 7) | (v & 0x7F);
bits += 7;
if (!(v & 0x80)) { // finished
if (s === '') {
var m = n < 80 ? n < 40 ? 0 : 1 : 2;
s = m + "." + (n - m * 40);
} else
s += "." + ((bits >= 31) ? "bigint" : n);
n = bits = 0;
}
}
return s;
};
function ASN1(stream, header, length, tag, sub) {
this.stream = stream;
this.header = header;
this.length = length;
this.tag = tag;
this.sub = sub;
}
ASN1.prototype.typeName = function () {
if (this.tag === undefined)
return "unknown";
var tagClass = this.tag >> 6,
tagConstructed = (this.tag >> 5) & 1,
tagNumber = this.tag & 0x1F;
switch (tagClass) {
case 0: // universal
switch (tagNumber) {
case 0x00: return "EOC";
case 0x01: return "BOOLEAN";
case 0x02: return "INTEGER";
case 0x03: return "BIT_STRING";
case 0x04: return "OCTET_STRING";
case 0x05: return "NULL";
case 0x06: return "OBJECT_IDENTIFIER";
case 0x07: return "ObjectDescriptor";
case 0x08: return "EXTERNAL";
case 0x09: return "REAL";
case 0x0A: return "ENUMERATED";
case 0x0B: return "EMBEDDED_PDV";
case 0x0C: return "UTF8String";
case 0x10: return "SEQUENCE";
case 0x11: return "SET";
case 0x12: return "NumericString";
case 0x13: return "PrintableString"; // ASCII subset
case 0x14: return "TeletexString"; // aka T61String
case 0x15: return "VideotexString";
case 0x16: return "IA5String"; // ASCII
case 0x17: return "UTCTime";
case 0x18: return "GeneralizedTime";
case 0x19: return "GraphicString";
case 0x1A: return "VisibleString"; // ASCII subset
case 0x1B: return "GeneralString";
case 0x1C: return "UniversalString";
case 0x1E: return "BMPString";
default: return "Universal_" + tagNumber.toString(16);
}
case 1: return "Application_" + tagNumber.toString(16);
case 2: return "[" + tagNumber + "]"; // Context
case 3: return "Private_" + tagNumber.toString(16);
}
};
ASN1.prototype.reSeemsASCII = /^[ -~]+$/;
ASN1.prototype.content = function () {
if (this.tag === undefined)
return null;
var tagClass = this.tag >> 6,
tagNumber = this.tag & 0x1F,
content = this.posContent(),
len = Math.abs(this.length);
if (tagClass !== 0) { // universal
if (this.sub !== null)
return "(" + this.sub.length + " elem)";
//TODO: TRY TO PARSE ASCII STRING
var s = this.stream.parseStringISO(content, content + Math.min(len, hardLimit));
if (this.reSeemsASCII.test(s))
return s.substring(0, 2 * hardLimit) + ((s.length > 2 * hardLimit) ? ellipsis : "");
else
return this.stream.parseOctetString(content, content + len);
}
switch (tagNumber) {
case 0x01: // BOOLEAN
return (this.stream.get(content) === 0) ? "false" : "true";
case 0x02: // INTEGER
return this.stream.parseInteger(content, content + len);
case 0x03: // BIT_STRING
return this.sub ? "(" + this.sub.length + " elem)" :
this.stream.parseBitString(content, content + len);
case 0x04: // OCTET_STRING
return this.sub ? "(" + this.sub.length + " elem)" :
this.stream.parseOctetString(content, content + len);
//case 0x05: // NULL
case 0x06: // OBJECT_IDENTIFIER
return this.stream.parseOID(content, content + len);
//case 0x07: // ObjectDescriptor
//case 0x08: // EXTERNAL
//case 0x09: // REAL
//case 0x0A: // ENUMERATED
//case 0x0B: // EMBEDDED_PDV
case 0x10: // SEQUENCE
case 0x11: // SET
return "(" + this.sub.length + " elem)";
case 0x0C: // UTF8String
return this.stream.parseStringUTF(content, content + len);
case 0x12: // NumericString
case 0x13: // PrintableString
case 0x14: // TeletexString
case 0x15: // VideotexString
case 0x16: // IA5String
//case 0x19: // GraphicString
case 0x1A: // VisibleString
//case 0x1B: // GeneralString
//case 0x1C: // UniversalString
return this.stream.parseStringISO(content, content + len);
case 0x1E: // BMPString
return this.stream.parseStringBMP(content, content + len);
case 0x17: // UTCTime
case 0x18: // GeneralizedTime
return this.stream.parseTime(content, content + len);
}
return null;
};
ASN1.prototype.toString = function () {
return this.typeName() + "@" + this.stream.pos + "[header:" + this.header + ",length:" + this.length + ",sub:" + ((this.sub === null) ? 'null' : this.sub.length) + "]";
};
ASN1.prototype.print = function (indent) {
if (indent === undefined) indent = '';
document.writeln(indent + this);
if (this.sub !== null) {
indent += ' ';
for (var i = 0, max = this.sub.length; i < max; ++i)
this.sub[i].print(indent);
}
};
ASN1.prototype.toPrettyString = function (indent) {
if (indent === undefined) indent = '';
var s = indent + this.typeName() + " @" + this.stream.pos;
if (this.length >= 0)
s += "+";
s += this.length;
if (this.tag & 0x20)
s += " (constructed)";
else if (((this.tag == 0x03) || (this.tag == 0x04)) && (this.sub !== null))
s += " (encapsulates)";
s += "\n";
if (this.sub !== null) {
indent += ' ';
for (var i = 0, max = this.sub.length; i < max; ++i)
s += this.sub[i].toPrettyString(indent);
}
return s;
};
ASN1.prototype.toDOM = function () {
var node = DOM.tag("div", "node");
node.asn1 = this;
var head = DOM.tag("div", "head");
var s = this.typeName().replace(/_/g, " ");
head.innerHTML = s;
var content = this.content();
if (content !== null) {
content = String(content).replace(/</g, "<");
var preview = DOM.tag("span", "preview");
preview.appendChild(DOM.text(content));
head.appendChild(preview);
}
node.appendChild(head);
this.node = node;
this.head = head;
var value = DOM.tag("div", "value");
s = "Offset: " + this.stream.pos + "<br/>";
s += "Length: " + this.header + "+";
if (this.length >= 0)
s += this.length;
else
s += (-this.length) + " (undefined)";
if (this.tag & 0x20)
s += "<br/>(constructed)";
else if (((this.tag == 0x03) || (this.tag == 0x04)) && (this.sub !== null))
s += "<br/>(encapsulates)";
//TODO if (this.tag == 0x03) s += "Unused bits: "
if (content !== null) {
s += "<br/>Value:<br/><b>" + content + "</b>";
if ((typeof oids === 'object') && (this.tag == 0x06)) {
var oid = oids[content];
if (oid) {
if (oid.d) s += "<br/>" + oid.d;
if (oid.c) s += "<br/>" + oid.c;
if (oid.w) s += "<br/>(warning!)";
}
}
}
value.innerHTML = s;
node.appendChild(value);
var sub = DOM.tag("div", "sub");
if (this.sub !== null) {
for (var i = 0, max = this.sub.length; i < max; ++i)
sub.appendChild(this.sub[i].toDOM());
}
node.appendChild(sub);
head.onclick = function () {
node.className = (node.className == "node collapsed") ? "node" : "node collapsed";
};
return node;
};
ASN1.prototype.posStart = function () {
return this.stream.pos;
};
ASN1.prototype.posContent = function () {
return this.stream.pos + this.header;
};
ASN1.prototype.posEnd = function () {
return this.stream.pos + this.header + Math.abs(this.length);
};
ASN1.prototype.fakeHover = function (current) {
this.node.className += " hover";
if (current)
this.head.className += " hover";
};
ASN1.prototype.fakeOut = function (current) {
var re = / ?hover/;
this.node.className = this.node.className.replace(re, "");
if (current)
this.head.className = this.head.className.replace(re, "");
};
ASN1.prototype.toHexDOM_sub = function (node, className, stream, start, end) {
if (start >= end)
return;
var sub = DOM.tag("span", className);
sub.appendChild(DOM.text(
stream.hexDump(start, end)));
node.appendChild(sub);
};
ASN1.prototype.toHexDOM = function (root) {
var node = DOM.tag("span", "hex");
if (root === undefined) root = node;
this.head.hexNode = node;
this.head.onmouseover = function () { this.hexNode.className = "hexCurrent"; };
this.head.onmouseout = function () { this.hexNode.className = "hex"; };
node.asn1 = this;
node.onmouseover = function () {
var current = !root.selected;
if (current) {
root.selected = this.asn1;
this.className = "hexCurrent";
}
this.asn1.fakeHover(current);
};
node.onmouseout = function () {
var current = (root.selected == this.asn1);
this.asn1.fakeOut(current);
if (current) {
root.selected = null;
this.className = "hex";
}
};
this.toHexDOM_sub(node, "tag", this.stream, this.posStart(), this.posStart() + 1);
this.toHexDOM_sub(node, (this.length >= 0) ? "dlen" : "ulen", this.stream, this.posStart() + 1, this.posContent());
if (this.sub === null)
node.appendChild(DOM.text(
this.stream.hexDump(this.posContent(), this.posEnd())));
else if (this.sub.length > 0) {
var first = this.sub[0];
var last = this.sub[this.sub.length - 1];
this.toHexDOM_sub(node, "intro", this.stream, this.posContent(), first.posStart());
for (var i = 0, max = this.sub.length; i < max; ++i)
node.appendChild(this.sub[i].toHexDOM(root));
this.toHexDOM_sub(node, "outro", this.stream, last.posEnd(), this.posEnd());
}
return node;
};
ASN1.prototype.toHexString = function (root) {
return this.stream.hexDump(this.posStart(), this.posEnd(), true);
};
ASN1.decodeLength = function (stream) {
var buf = stream.get(),
len = buf & 0x7F;
if (len == buf)
return len;
if (len > 3)
throw "Length over 24 bits not supported at position " + (stream.pos - 1);
if (len === 0)
return -1; // undefined
buf = 0;
for (var i = 0; i < len; ++i)
buf = (buf << 8) | stream.get();
return buf;
};
ASN1.hasContent = function (tag, len, stream) {
if (tag & 0x20) // constructed
return true;
if ((tag < 0x03) || (tag > 0x04))
return false;
var p = new Stream(stream);
if (tag == 0x03) p.get(); // BitString unused bits, must be in [0, 7]
var subTag = p.get();
if ((subTag >> 6) & 0x01) // not (universal or context)
return false;
try {
var subLength = ASN1.decodeLength(p);
return ((p.pos - stream.pos) + subLength == len);
} catch (exception) {
return false;
}
};
ASN1.decode = function (stream) {
if (!(stream instanceof Stream))
stream = new Stream(stream, 0);
var streamStart = new Stream(stream),
tag = stream.get(),
len = ASN1.decodeLength(stream),
header = stream.pos - streamStart.pos,
sub = null;
if (ASN1.hasContent(tag, len, stream)) {
// it has content, so we decode it
var start = stream.pos;
if (tag == 0x03) stream.get(); // skip BitString unused bits, must be in [0, 7]
sub = [];
if (len >= 0) {
// definite length
var end = start + len;
while (stream.pos < end)
sub[sub.length] = ASN1.decode(stream);
if (stream.pos != end)
throw "Content size is not correct for container starting at offset " + start;
} else {
// undefined length
try {
for (;;) {
var s = ASN1.decode(stream);
if (s.tag === 0)
break;
sub[sub.length] = s;
}
len = start - stream.pos;
} catch (e) {
throw "Exception while decoding undefined length content: " + e;
}
}
} else
stream.pos += len; // skip content
return new ASN1(streamStart, header, len, tag, sub);
};
ASN1.test = function () {
var test = [
{ value: [0x27], expected: 0x27 },
{ value: [0x81, 0xC9], expected: 0xC9 },
{ value: [0x83, 0xFE, 0xDC, 0xBA], expected: 0xFEDCBA }
];
for (var i = 0, max = test.length; i < max; ++i) {
var pos = 0,
stream = new Stream(test[i].value, 0),
res = ASN1.decodeLength(stream);
if (res != test[i].expected)
document.write("In test[" + i + "] expected " + test[i].expected + " got " + res + "\n");
}
};
// export globals
window.ASN1 = ASN1;
})();/**
* Retrieve the hexadecimal value (as a string) of the current ASN.1 element
* @returns {string}
* @public
*/
ASN1.prototype.getHexStringValue = function () {
var hexString = this.toHexString();
var offset = this.header * 2;
var length = this.length * 2;
return hexString.substr(offset, length);
};
/**
* Method to parse a pem encoded string containing both a public or private key.
* The method will translate the pem encoded string in a der encoded string and
* will parse private key and public key parameters. This method accepts public key
* in the rsaencryption pkcs #1 format (oid: 1.2.840.113549.1.1.1).
*
* @todo Check how many rsa formats use the same format of pkcs #1.
*
* The format is defined as:
* PublicKeyInfo ::= SEQUENCE {
* algorithm AlgorithmIdentifier,
* PublicKey BIT STRING
* }
* Where AlgorithmIdentifier is:
* AlgorithmIdentifier ::= SEQUENCE {
* algorithm OBJECT IDENTIFIER, the OID of the enc algorithm
* parameters ANY DEFINED BY algorithm OPTIONAL (NULL for PKCS #1)
* }
* and PublicKey is a SEQUENCE encapsulated in a BIT STRING
* RSAPublicKey ::= SEQUENCE {
* modulus INTEGER, -- n
* publicExponent INTEGER -- e
* }
* it's possible to examine the structure of the keys obtained from openssl using
* an asn.1 dumper as the one used here to parse the components: http://lapo.it/asn1js/
* @argument {string} pem the pem encoded string, can include the BEGIN/END header/footer
* @private
*/
RSAKey.prototype.parseKey = function (pem) {
try {
var modulus = 0;
var public_exponent = 0;
var reHex = /^\s*(?:[0-9A-Fa-f][0-9A-Fa-f]\s*)+$/;
var der = reHex.test(pem) ? Hex.decode(pem) : Base64.unarmor(pem);
var asn1 = ASN1.decode(der);
//Fixes a bug with OpenSSL 1.0+ private keys
if(asn1.sub.length === 3){
asn1 = asn1.sub[2].sub[0];
}
if (asn1.sub.length === 9) {
// Parse the private key.
modulus = asn1.sub[1].getHexStringValue(); //bigint
this.n = parseBigInt(modulus, 16);
public_exponent = asn1.sub[2].getHexStringValue(); //int
this.e = parseInt(public_exponent, 16);
var private_exponent = asn1.sub[3].getHexStringValue(); //bigint
this.d = parseBigInt(private_exponent, 16);
var prime1 = asn1.sub[4].getHexStringValue(); //bigint
this.p = parseBigInt(prime1, 16);
var prime2 = asn1.sub[5].getHexStringValue(); //bigint
this.q = parseBigInt(prime2, 16);
var exponent1 = asn1.sub[6].getHexStringValue(); //bigint
this.dmp1 = parseBigInt(exponent1, 16);
var exponent2 = asn1.sub[7].getHexStringValue(); //bigint
this.dmq1 = parseBigInt(exponent2, 16);
var coefficient = asn1.sub[8].getHexStringValue(); //bigint
this.coeff = parseBigInt(coefficient, 16);
}
else if (asn1.sub.length === 2) {
// Parse the public key.
var bit_string = asn1.sub[1];
var sequence = bit_string.sub[0];
modulus = sequence.sub[0].getHexStringValue();
this.n = parseBigInt(modulus, 16);
public_exponent = sequence.sub[1].getHexStringValue();
this.e = parseInt(public_exponent, 16);
}
else {
return false;
}
return true;
}
catch (ex) {
return false;
}
};
/**
* Translate rsa parameters in a hex encoded string representing the rsa key.
*
* The translation follow the ASN.1 notation :
* RSAPrivateKey ::= SEQUENCE {
* version Version,
* modulus INTEGER, -- n
* publicExponent INTEGER, -- e
* privateExponent INTEGER, -- d
* prime1 INTEGER, -- p
* prime2 INTEGER, -- q
* exponent1 INTEGER, -- d mod (p1)
* exponent2 INTEGER, -- d mod (q-1)
* coefficient INTEGER, -- (inverse of q) mod p
* }
* @returns {string} DER Encoded String representing the rsa private key
* @private
*/
RSAKey.prototype.getPrivateBaseKey = function () {
var options = {
'array': [
new KJUR.asn1.DERInteger({'int': 0}),
new KJUR.asn1.DERInteger({'bigint': this.n}),
new KJUR.asn1.DERInteger({'int': this.e}),
new KJUR.asn1.DERInteger({'bigint': this.d}),
new KJUR.asn1.DERInteger({'bigint': this.p}),
new KJUR.asn1.DERInteger({'bigint': this.q}),
new KJUR.asn1.DERInteger({'bigint': this.dmp1}),
new KJUR.asn1.DERInteger({'bigint': this.dmq1}),
new KJUR.asn1.DERInteger({'bigint': this.coeff})
]
};
var seq = new KJUR.asn1.DERSequence(options);
return seq.getEncodedHex();
};
/**
* base64 (pem) encoded version of the DER encoded representation
* @returns {string} pem encoded representation without header and footer
* @public
*/
RSAKey.prototype.getPrivateBaseKeyB64 = function () {
return hex2b64(this.getPrivateBaseKey());
};
/**
* Translate rsa parameters in a hex encoded string representing the rsa public key.
* The representation follow the ASN.1 notation :
* PublicKeyInfo ::= SEQUENCE {
* algorithm AlgorithmIdentifier,
* PublicKey BIT STRING
* }
* Where AlgorithmIdentifier is:
* AlgorithmIdentifier ::= SEQUENCE {
* algorithm OBJECT IDENTIFIER, the OID of the enc algorithm
* parameters ANY DEFINED BY algorithm OPTIONAL (NULL for PKCS #1)
* }
* and PublicKey is a SEQUENCE encapsulated in a BIT STRING
* RSAPublicKey ::= SEQUENCE {
* modulus INTEGER, -- n
* publicExponent INTEGER -- e
* }
* @returns {string} DER Encoded String representing the rsa public key
* @private
*/
RSAKey.prototype.getPublicBaseKey = function () {
var options = {
'array': [
new KJUR.asn1.DERObjectIdentifier({'oid': '1.2.840.113549.1.1.1'}), //RSA Encryption pkcs #1 oid
new KJUR.asn1.DERNull()
]
};
var first_sequence = new KJUR.asn1.DERSequence(options);
options = {
'array': [
new KJUR.asn1.DERInteger({'bigint': this.n}),
new KJUR.asn1.DERInteger({'int': this.e})
]
};
var second_sequence = new KJUR.asn1.DERSequence(options);
options = {
'hex': '00' + second_sequence.getEncodedHex()
};
var bit_string = new KJUR.asn1.DERBitString(options);
options = {
'array': [
first_sequence,
bit_string
]
};
var seq = new KJUR.asn1.DERSequence(options);
return seq.getEncodedHex();
};
/**
* base64 (pem) encoded version of the DER encoded representation
* @returns {string} pem encoded representation without header and footer
* @public
*/
RSAKey.prototype.getPublicBaseKeyB64 = function () {
return hex2b64(this.getPublicBaseKey());
};
/**
* wrap the string in block of width chars. The default value for rsa keys is 64
* characters.
* @param {string} str the pem encoded string without header and footer
* @param {Number} [width=64] - the length the string has to be wrapped at
* @returns {string}
* @private
*/
RSAKey.prototype.wordwrap = function (str, width) {
width = width || 64;
if (!str) {
return str;
}
var regex = '(.{1,' + width + '})( +|$\n?)|(.{1,' + width + '})';
return str.match(RegExp(regex, 'g')).join('\n');
};
/**
* Retrieve the pem encoded private key
* @returns {string} the pem encoded private key with header/footer
* @public
*/
RSAKey.prototype.getPrivateKey = function () {
var key = "-----BEGIN RSA PRIVATE KEY-----\n";
key += this.wordwrap(this.getPrivateBaseKeyB64()) + "\n";
key += "-----END RSA PRIVATE KEY-----";
return key;
};
/**
* Retrieve the pem encoded public key
* @returns {string} the pem encoded public key with header/footer
* @public
*/
RSAKey.prototype.getPublicKey = function () {
var key = "-----BEGIN PUBLIC KEY-----\n";
key += this.wordwrap(this.getPublicBaseKeyB64()) + "\n";
key += "-----END PUBLIC KEY-----";
return key;
};
/**
* Check if the object contains the necessary parameters to populate the rsa modulus
* and public exponent parameters.
* @param {Object} [obj={}] - An object that may contain the two public key
* parameters
* @returns {boolean} true if the object contains both the modulus and the public exponent
* properties (n and e)
* @todo check for types of n and e. N should be a parseable bigInt object, E should
* be a parseable integer number
* @private
*/
RSAKey.prototype.hasPublicKeyProperty = function (obj) {
obj = obj || {};
return (
obj.hasOwnProperty('n') &&
obj.hasOwnProperty('e')
);
};
/**
* Check if the object contains ALL the parameters of an RSA key.
* @param {Object} [obj={}] - An object that may contain nine rsa key
* parameters
* @returns {boolean} true if the object contains all the parameters needed
* @todo check for types of the parameters all the parameters but the public exponent
* should be parseable bigint objects, the public exponent should be a parseable integer number
* @private
*/
RSAKey.prototype.hasPrivateKeyProperty = function (obj) {
obj = obj || {};
return (
obj.hasOwnProperty('n') &&
obj.hasOwnProperty('e') &&
obj.hasOwnProperty('d') &&
obj.hasOwnProperty('p') &&
obj.hasOwnProperty('q') &&
obj.hasOwnProperty('dmp1') &&
obj.hasOwnProperty('dmq1') &&
obj.hasOwnProperty('coeff')
);
};
/**
* Parse the properties of obj in the current rsa object. Obj should AT LEAST
* include the modulus and public exponent (n, e) parameters.
* @param {Object} obj - the object containing rsa parameters
* @private
*/
RSAKey.prototype.parsePropertiesFrom = function (obj) {
this.n = obj.n;
this.e = obj.e;
if (obj.hasOwnProperty('d')) {
this.d = obj.d;
this.p = obj.p;
this.q = obj.q;
this.dmp1 = obj.dmp1;
this.dmq1 = obj.dmq1;
this.coeff = obj.coeff;
}
};
/**
* Create a new JSEncryptRSAKey that extends Tom Wu's RSA key object.
* This object is just a decorator for parsing the key parameter
* @param {string|Object} key - The key in string format, or an object containing
* the parameters needed to build a RSAKey object.
* @constructor
*/
var JSEncryptRSAKey = function (key) {
// Call the super constructor.
RSAKey.call(this);
// If a key key was provided.
if (key) {
// If this is a string...
if (typeof key === 'string') {
this.parseKey(key);
}
else if (
this.hasPrivateKeyProperty(key) ||
this.hasPublicKeyProperty(key)
) {
// Set the values for the key.
this.parsePropertiesFrom(key);
}
}
};
// Derive from RSAKey.
JSEncryptRSAKey.prototype = new RSAKey();
// Reset the contructor.
JSEncryptRSAKey.prototype.constructor = JSEncryptRSAKey;
/**
*
* @param {Object} [options = {}] - An object to customize JSEncrypt behaviour
* possible parameters are:
* - default_key_size {number} default: 1024 the key size in bit
* - default_public_exponent {string} default: '010001' the hexadecimal representation of the public exponent
* - log {boolean} default: false whether log warn/error or not
* @constructor
*/
var JSEncrypt = function (options) {
options = options || {};
this.default_key_size = parseInt(options.default_key_size) || 1024;
this.default_public_exponent = options.default_public_exponent || '010001'; //65537 default openssl public exponent for rsa key type
this.log = options.log || false;
// The private and public key.
this.key = null;
};
/**
* Method to set the rsa key parameter (one method is enough to set both the public
* and the private key, since the private key contains the public key paramenters)
* Log a warning if logs are enabled
* @param {Object|string} key the pem encoded string or an object (with or without header/footer)
* @public
*/
JSEncrypt.prototype.setKey = function (key) {
if (this.log && this.key) {
console.warn('A key was already set, overriding existing.');
}
this.key = new JSEncryptRSAKey(key);
};
/**
* Proxy method for setKey, for api compatibility
* @see setKey
* @public
*/
JSEncrypt.prototype.setPrivateKey = function (privkey) {
// Create the key.
this.setKey(privkey);
};
/**
* Proxy method for setKey, for api compatibility
* @see setKey
* @public
*/
JSEncrypt.prototype.setPublicKey = function (pubkey) {
// Sets the public key.
this.setKey(pubkey);
};
/**
* Proxy method for RSAKey object's decrypt, decrypt the string using the private
* components of the rsa key object. Note that if the object was not set will be created
* on the fly (by the getKey method) using the parameters passed in the JSEncrypt constructor
* @param {string} string base64 encoded crypted string to decrypt
* @return {string} the decrypted string
* @public
*/
JSEncrypt.prototype.decrypt = function (string) {
// Return the decrypted string.
try {
return this.getKey().decrypt(b64tohex(string));
}
catch (ex) {
return false;
}
};
/**
* Proxy method for RSAKey object's encrypt, encrypt the string using the public
* components of the rsa key object. Note that if the object was not set will be created
* on the fly (by the getKey method) using the parameters passed in the JSEncrypt constructor
* @param {string} string the string to encrypt
* @return {string} the encrypted string encoded in base64
* @public
*/
JSEncrypt.prototype.encrypt = function (string) {
// Return the encrypted string.
try {
return hex2b64(this.getKey().encrypt(string));
}
catch (ex) {
return false;
}
};
/**
* Getter for the current JSEncryptRSAKey object. If it doesn't exists a new object
* will be created and returned
* @param {callback} [cb] the callback to be called if we want the key to be generated
* in an async fashion
* @returns {JSEncryptRSAKey} the JSEncryptRSAKey object
* @public
*/
JSEncrypt.prototype.getKey = function (cb) {
// Only create new if it does not exist.
if (!this.key) {
// Get a new private key.
this.key = new JSEncryptRSAKey();
if (cb && {}.toString.call(cb) === '[object Function]') {
this.key.generateAsync(this.default_key_size, this.default_public_exponent, cb);
return;
}
// Generate the key.
this.key.generate(this.default_key_size, this.default_public_exponent);
}
return this.key;
};
/**
* Returns the pem encoded representation of the private key
* If the key doesn't exists a new key will be created
* @returns {string} pem encoded representation of the private key WITH header and footer
* @public
*/
JSEncrypt.prototype.getPrivateKey = function () {
// Return the private representation of this key.
return this.getKey().getPrivateKey();
};
/**
* Returns the pem encoded representation of the private key
* If the key doesn't exists a new key will be created
* @returns {string} pem encoded representation of the private key WITHOUT header and footer
* @public
*/
JSEncrypt.prototype.getPrivateKeyB64 = function () {
// Return the private representation of this key.
return this.getKey().getPrivateBaseKeyB64();
};
/**
* Returns the pem encoded representation of the public key
* If the key doesn't exists a new key will be created
* @returns {string} pem encoded representation of the public key WITH header and footer
* @public
*/
JSEncrypt.prototype.getPublicKey = function () {
// Return the private representation of this key.
return this.getKey().getPublicKey();
};
/**
* Returns the pem encoded representation of the public key
* If the key doesn't exists a new key will be created
* @returns {string} pem encoded representation of the public key WITHOUT header and footer
* @public
*/
JSEncrypt.prototype.getPublicKeyB64 = function () {
// Return the private representation of this key.
return this.getKey().getPublicBaseKeyB64();
};
exports.JSEncrypt = JSEncrypt;
})(JSEncryptExports);
var JSEncrypt = JSEncryptExports.JSEncrypt;
JS加密代码
var publicKey = "替换为Java后台生成的公钥";
var encrypt = new JSEncrypt();
encrypt.setPublicKey(publicKey);
// 这里输出加密后的字符串
console.log(encrypt.encrypt("你好asd1"));
将JS加密后的字符串传递给Java的解密函数，解密即可得到原文。
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