C# 常用加密处理
AES
- using System;
- using System.Security.Cryptography;
- using System.Text;
- namespace Common
- {
- public class AESProvider
- {
- public static int KEYSIZE = ;
- /// <summary>
- /// 获取随机的加密密钥
- /// </summary>
- /// <param name="Key"></param>
- /// <param name="IV"></param>
- /// <returns></returns>
- public static void GenerateKey(out string Key, out string IV)
- {
- Key = GenerateKey();
- IV = GenerateIV();
- }
- /// <summary>
- /// 获取随机的加密密钥
- /// </summary>
- /// <returns></returns>
- public static string GenerateKey()
- {
- int n = KEYSIZE / ;
- char[] arrChar = new char[]{
- 'a','b','d','c','e','f','g','h','i','j','k','l','m','n','p','r','q','s','t','u','v','w','z','y','x',
- '','','','','','','','','','',
- 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','Q','P','R','T','S','V','U','W','X','Y','Z'
- };
- StringBuilder num = new StringBuilder();
- Random rnd = new Random();
- for (int i = ; i < n; i++)
- {
- num.Append(arrChar[rnd.Next(, arrChar.Length)].ToString());
- }
- return num.ToString();
- }
- /// <summary>
- /// 获取随机的初始化向量
- /// </summary>
- /// <returns></returns>
- public static string GenerateIV()
- {
- int n = KEYSIZE / ;
- char[] arrChar = new char[]{
- 'a','b','d','c','e','f','g','h','i','j','k','l','m','n','p','r','q','s','t','u','v','w','z','y','x',
- '','','','','','','','','','',
- 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','Q','P','R','T','S','V','U','W','X','Y','Z'
- };
- StringBuilder num = new StringBuilder();
- Random rnd = new Random(DateTime.Now.Millisecond);
- for (int i = ; i < n; i++)
- {
- num.Append(arrChar[rnd.Next(, arrChar.Length)].ToString());
- }
- return num.ToString();
- }
- /// <summary>
- /// AES加密
- /// </summary>
- /// <param name="TextData">待加密字符</param>
- /// <param name="Key">加密密钥</param>
- /// <param name="IV">初始化向量</param>
- /// <param name="CryptText">输出:已加密字符串</param>
- /// <returns>0:成功加密 -1:待加密字符串不为能空 -2:加密密钥不能为空 -3:初始化向量字节长度不为KEYSIZE/8 -4:其他错误</returns>
- public static int EncryptText(string TextData, string Key, string IV, out string CryptText)
- {
- CryptText = "";
- TextData = TextData.Trim();
- if (string.IsNullOrEmpty(TextData)) return -;
- if (string.IsNullOrEmpty(Key)) return -;
- if (string.IsNullOrEmpty(IV) || IV.Length != KEYSIZE / ) return -;
- try
- {
- RijndaelManaged rijndaelCipher = new RijndaelManaged();
- rijndaelCipher.Mode = CipherMode.CBC;
- rijndaelCipher.Padding = PaddingMode.PKCS7;
- rijndaelCipher.KeySize = KEYSIZE;
- rijndaelCipher.BlockSize = KEYSIZE;
- byte[] pwdBytes = Encoding.UTF8.GetBytes(Key);
- byte[] ivBytes = Encoding.UTF8.GetBytes(IV);
- byte[] keyBytes = new byte[KEYSIZE / ];
- int len = pwdBytes.Length;
- if (len > keyBytes.Length) len = keyBytes.Length;
- System.Array.Copy(pwdBytes, keyBytes, len);
- rijndaelCipher.Key = keyBytes;
- rijndaelCipher.IV = ivBytes;
- ICryptoTransform transform = rijndaelCipher.CreateEncryptor();
- byte[] plainText = Encoding.UTF8.GetBytes(TextData);
- byte[] cipherBytes = transform.TransformFinalBlock(plainText, , plainText.Length);
- CryptText = Convert.ToBase64String(cipherBytes);
- return ;
- }
- catch
- {
- return -;
- }
- }
- /// <summary>
- /// AES解密
- /// </summary>
- /// <param name="CryptText">待解密字符串</param>
- /// <param name="Key">加密密钥</param>
- /// <param name="IV">初始化向量</param>
- /// <param name="TextData">输出:已解密的字符串</param>
- /// <returns>0:成功解密 -1:待解密字符串不为能空 -2:加密密钥不能为空 -3:初始化向量字节长度不为KEYSIZE/8 -4:其他错误</returns>
- public static int DecryptText(string CryptText, string Key, string IV, out string TextData)
- {
- TextData = "";
- if (string.IsNullOrEmpty(CryptText)) return -;
- if (string.IsNullOrEmpty(Key)) return -;
- if (string.IsNullOrEmpty(IV) || IV.Length != KEYSIZE / ) return -;
- try
- {
- RijndaelManaged rijndaelCipher = new RijndaelManaged();
- rijndaelCipher.Mode = CipherMode.CBC;
- rijndaelCipher.Padding = PaddingMode.PKCS7;
- rijndaelCipher.KeySize = KEYSIZE;
- rijndaelCipher.BlockSize = KEYSIZE;
- byte[] encryptedData = Convert.FromBase64String(CryptText);
- byte[] pwdBytes = Encoding.UTF8.GetBytes(Key);
- byte[] ivBytes = Encoding.UTF8.GetBytes(IV);
- byte[] keyBytes = new byte[KEYSIZE / ];
- int len = pwdBytes.Length;
- if (len > keyBytes.Length) len = keyBytes.Length;
- System.Array.Copy(pwdBytes, keyBytes, len);
- rijndaelCipher.Key = keyBytes;
- rijndaelCipher.IV = ivBytes;
- ICryptoTransform transform = rijndaelCipher.CreateDecryptor();
- byte[] plainText = transform.TransformFinalBlock(encryptedData, , encryptedData.Length);
- TextData = Encoding.UTF8.GetString(plainText).Trim();
- return ;
- }
- catch
- {
- return -;
- }
- }
- }
- }
RSA
- using System;
- using System.Security.Cryptography;
- using System.Text;
- namespace Common
- {
- public class RSAProvider
- {
- public static int KEYSIZE = ;
- /// <summary>
- /// 自动生成公私密钥
- /// </summary>
- /// <param name="Modulus">输出:加密公钥</param>
- /// <param name="Exponent">输入:公钥指数</param>
- /// <param name="PrivateKey">输出:私钥</param>
- public static void GenerateKey(out string Modulus, out string Exponent, out string PrivateKey)
- {
- RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(KEYSIZE);
- RSAParameters pubparam = rsaProvider.ExportParameters(false);
- byte[] mod = pubparam.Modulus;
- byte[] exp = pubparam.Exponent;
- byte[] prikey = rsaProvider.ExportCspBlob(true);
- Modulus = Convert.ToBase64String(mod);
- Exponent = Convert.ToBase64String(exp);
- PrivateKey = Convert.ToBase64String(prikey);
- }
- /// <summary>
- /// RSA加密
- /// </summary>
- /// <param name="TextData">待加密字符</param>
- /// <param name="Modulus">加密公钥</param>
- /// <param name="Exponent">加密指数</param>
- /// <param name="CryptText">输出:已加密字符串</param>
- /// <returns>0:成功加密 -1:待加密字符串不为能空 -2:加密公钥不能为空 -3:待加密字符串超长 -4:其他错误</returns>
- public static int EncryptText(string TextData, string Modulus, string Exponent, out string CryptText)
- {
- CryptText = "";
- if (string.IsNullOrEmpty(TextData)) return -;
- if (string.IsNullOrEmpty(Modulus)) return -;
- if (TextData.Length > KEYSIZE / - ) return -;
- try
- {
- RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(KEYSIZE);
- byte[] modBytes = Convert.FromBase64String(Modulus);
- byte[] expBytes = Convert.FromBase64String(Exponent);
- RSAParameters p = new RSAParameters();
- p.Modulus = modBytes;
- p.Exponent = expBytes;
- rsa.ImportParameters(p);
- byte[] plainText = Encoding.UTF8.GetBytes(TextData);
- byte[] cipherBytes = rsa.Encrypt(plainText, false);
- CryptText = Convert.ToBase64String(cipherBytes);
- return ;
- }
- catch { return -; }
- }
- /// <summary>
- /// RSA解密
- /// </summary>
- /// <param name="CryptText">待解密字符串</param>
- /// <param name="Key">解密私钥</param>
- /// <param name="TextData">输出:已解密的字符串</param>
- /// <returns>0:成功解密 -1:待解密字符串不为能空 -2:解密私钥不能为空 -4:其他错误</returns>
- public static int DecryptText(string CryptText, string PrivateKey, out string TextData)
- {
- TextData = "";
- if (string.IsNullOrEmpty(CryptText)) return -;
- if (string.IsNullOrEmpty(PrivateKey)) return -;
- try
- {
- RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(KEYSIZE);
- byte[] prikey = Convert.FromBase64String(PrivateKey); ;
- rsa.ImportCspBlob(prikey);
- byte[] cipherBytes = Convert.FromBase64String(CryptText);
- byte[] plainText = rsa.Decrypt(cipherBytes, false);
- TextData = Encoding.UTF8.GetString(plainText);
- return ;
- }
- catch { return -; }
- }
- }
- }
MD5
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- namespace Common
- {
- public class EncryptMD5
- {
- public static string GetMd5(string s, Encoding encoding)
- {
- System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();//实例化一个MD5
- byte[] t = md5.ComputeHash(encoding.GetBytes(s));//生成MD5哈希值
- StringBuilder sb = new StringBuilder();
- for (int i = ; i < t.Length; i++)
- {
- sb.Append(t[i].ToString("x").PadLeft(, ''));//将哈希值转换为字符串
- }
- return sb.ToString().ToUpper();
- }
- }
- }
C# 常用加密处理的更多相关文章
- iOS代码加密常用加密方式
iOS代码加密常用加密方式 iOS代码加密常用加密方式,常见的iOS代码加密常用加密方式算法包括MD5加密.AES加密.BASE64加密,三大算法iOS代码加密是如何进行加密的,且看下文 MD5 iO ...
- PHP的几个常用加密函数(转载 https://jellybool.com/post/php-encrypt-functions)
PHP的几个常用加密函数 在网站的开发过程中,常常需要对部分数据(如用户密码)进行加密,本文主要介绍PHP的几个常见的加密函数 MD5加密: string md5 ( string $str [, b ...
- ASP.NET常用加密解密方法
ASP.NET常用加密解密方法 一.MD5加密解密 1.加密 C# 代码 public static string ToMd5(string clearString) ...
- 2019-2-20C#开发中常用加密解密方法解析
C#开发中常用加密解密方法解析 一.MD5加密算法 我想这是大家都常听过的算法,可能也用的比较多.那么什么是MD5算法呢?MD5全称是 message-digest algorithm 5[|ˈmes ...
- php实现的三个常用加密解密功能函数示例
目录 算法一: 算法二: 算法三(改进第一个加密之后的算法) 本文实例讲述了php实现的三个常用加密解密功能函数.分享给大家供大家参考,具体如下: 算法一: //加密函数 function lock_ ...
- iOS常用加密方法(aes、md5、base64)
1.代码 iOS常用加密方法(aes.md5.base64) .AES加密 NSData+AES.h文件 // // NSData-AES.h // Smile // // Created by 周 ...
- PHP的几个常用加密函数
在php的开发过程中,常常需要对部分数据(如用户密码)进行加密 一.加密类型: 1.单向散列加密 就是把任意长度的信息进行散列计算,得到固定长度的输出,这个散列计算过程是单向的,即不能对固定长度的输出 ...
- JAVA常用加密解密算法Encryption and decryption
加密,是以某种特殊的算法改变原有的信息数据,使得未授权的用户即使获得了已加密的信息,但因不知解密的方法,仍然无法了解信息的内容.大体上分为双向加密和单向加密,而双向加密又分为对称加密和非对称加密(有些 ...
- .NET Core 常用加密和Hash工具NETCore.Encrypt
前言 在日常开发过程中,不可避免的涉及到数据加密解密(Hash)操作,所以就有想法开发通用工具,NETCore.Encrypt就诞生了.目前NETCore.Encrypt只支持.NET Core ,工 ...
- 关于Java中常用加密/解密方法的实现
安全问题已经成为一个越来越重要的问题,在Java中如何对重要数据进行加密解密是本文的主要内容. 一.常用的加密/解密算法 1.Base64 严格来说Base64并不是一种加密/解密算法,而是一种编码方 ...
随机推荐
- In p = new Fred(), does the Fred memory “leak” if the Fred constructor throws an exception?
No. If an exception occurs during the Fred constructor of p = new Fred(), the C++ language guarantee ...
- Web前端的学习介绍(截止今天还有Bootstrap没有学,要腾点时间解决掉)
Web前端的学习分为以下几个阶段,具体的学习路线图如图所示. 第一阶段——HTML的学习 超文本标记语言(HyperText Mark-up Language 简称HTML)是一个网页的骨架,无论是静 ...
- 关于刷Sylvain/burst_ind分支的一些问题解答
Sylvain/burst_ind分支是网上说的比较多的带sniffer功能的分支,但是编译完无法刷固件 关于以上问题.相信很多朋友碰到过.但是国内没有人分享相关的经验.在这里我分享下我的经验. ht ...
- 为什么SQL语句加 1=1
是为了链接下面的查询条件条件,也或者是替换没有查询条件的语句.比如:要把检索条件作为一个参数传递给SQL,那么,当这个检索语句不存在的话就可以给它赋值为1=1.这样就避免了SQL出错,也就可以把加条件 ...
- Linux iptables重启后失效
解决办法如下: 输入完iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080 后 执行iptables-s ...
- eval函数的工作原理
如果您想详细了解eval和JSON请参考以下链接: eval :https://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Glob ...
- Java测试工具
1. 开源测试工具: http://www.open-open.com/43.htm 2. 10款常用的JAVA测试工具 :http://developer.51cto.com/art/200 ...
- SpringCloud学习后获取的地址
关于SpringCloud + Docker 学习地址: (1) https://yq.aliyun.com/articles/57265 (2) https://yq.aliyun.com/team ...
- Generic Netlink详解
netlink socket是一种用于用户态进程和内核态进程之间的通信机制.它通过为内核模块提供一组特殊的API,并为用户程序提供了一组标准的socket接口的方式,实现了全双工的通讯连接. Netl ...
- Ubuntu14.04安装配置Open vSwitch
最近在研究学习Open vSwitch,准备在本地Ubuntu14.04机器上安装一下,并基于其创建一些KVM虚拟机,下面就简要记录下在Ubuntu14.04系统上安装Open vSwitch的过程. ...