java.. C# 使用AES加密互解 采用AES-128-ECB加密模式

java需要下载外部包， commons codec.jar 1.6  較新的JAVA版本把Base64的方法改成靜態方法，可能會寫成
Base64.encodeToString(encrypted, 0);

import javax.crypto.Cipher;

import javax.crypto.spec.SecretKeySpec;

 

import org.apache.commons.codec.binary.Base64;

/**

 *

 * @author Administrator

 *

 */

public class AES {

 

    // 加密

    public static String Encrypt(String sSrc, String sKey) throws Exception {

        if (sKey == null) {

            System.out.print("Key为空null");

            return null;

        }

        // 判断Key是否为16位

        if (sKey.length() != 16) {

            System.out.print("Key长度不是16位");

            return null;

        }

        byte[] raw = sKey.getBytes("utf-8");

        SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");

        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");//"算法/模式/补码方式"

        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);

        byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));

 

        return new Base64().encodeToString(encrypted);//此处使用BASE64做转码功能，同时能起到2次加密的作用。

    }

 

    // 解密

    public static String Decrypt(String sSrc, String sKey) throws Exception {

        try {

            // 判断Key是否正确

            if (sKey == null) {

                System.out.print("Key为空null");

                return null;

            }

            // 判断Key是否为16位

            if (sKey.length() != 16) {

                System.out.print("Key长度不是16位");

                return null;

            }

            byte[] raw = sKey.getBytes("utf-8");

            SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");

            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");

            cipher.init(Cipher.DECRYPT_MODE, skeySpec);

            byte[] encrypted1 = new Base64().decode(sSrc);//先用base64解密

            try {

                byte[] original = cipher.doFinal(encrypted1);

                String originalString = new String(original,"utf-8");

                return originalString;

            } catch (Exception e) {

                System.out.println(e.toString());

                return null;

            }

        } catch (Exception ex) {

            System.out.println(ex.toString());

            return null;

        }

    }

 

    public static void main(String[] args) throws Exception {

        /*

         * 此处使用AES-128-ECB加密模式，key需要为16位。

         */

        String cKey = "1234567890123456";

        // 需要加密的字串

        String cSrc = "www.gowhere.so";

        System.out.println(cSrc);

        // 加密

        String enString = AES.Encrypt(cSrc, cKey);

        System.out.println("加密后的字串是：" + enString);

 

        // 解密

        String DeString = AES.Decrypt(enString, cKey);

        System.out.println("解密后的字串是：" + DeString);

    }

}

C#

 

 

/// <summary>

       /// 有密码的AES加密

       /// </summary>

       /// <param name="text">加密字符</param>

       /// <param name="password">加密的密码</param>

       /// <param name="iv">密钥</param>

       /// <returns></returns>

       public static string Encrypt(string toEncrypt,string key)

       {

           byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);

           byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);

 

           RijndaelManaged rDel = new RijndaelManaged();

           rDel.Key = keyArray;

           rDel.Mode = CipherMode.ECB;

           rDel.Padding = PaddingMode.PKCS7;

 

           ICryptoTransform cTransform = rDel.CreateEncryptor();

           byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

 

           return Convert.ToBase64String(resultArray, 0, resultArray.Length);

       }

 

       /// <summary>

       /// AES解密

       /// </summary>

       /// <param name="text"></param>

       /// <param name="password"></param>

       /// <param name="iv"></param>

       /// <returns></returns>

       public static string Decrypt(string toDecrypt,string key)

       {

           byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);

           byte[] toEncryptArray = Convert.FromBase64String(toDecrypt);

 

           RijndaelManaged rDel = new RijndaelManaged();

           rDel.Key = keyArray;

           rDel.Mode = CipherMode.ECB;

           rDel.Padding = PaddingMode.PKCS7;

 

           ICryptoTransform cTransform = rDel.CreateDecryptor();

           byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

 

           return UTF8Encoding.UTF8.GetString(resultArray);

       }