起因对接合作伙伴的系统，需要对数据进行AES加密
默认的使用了已经写好的帮助类中加密算法，发现结果不对，各种尝试改变加密模式改变向量等等折腾快一下午。最后网上查了下AES在JAVA里面的实现完整代码如下：
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public static String AesEncrypt(String content,String encyKey) { try { KeyGenerator kgen = KeyGenerator.getInstance("AES"); SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG"); secureRandom.setSeed(encyKey.getBytes()); kgen.init(128, secureRandom); Cipher cipher=Cipher.getInstance("AES"); cipher.init(Cipher.DECRYPT_MODE,new SecretKeySpec(kgen.generateKey().getEncoded(),"AES")); byte[] byteContent = content.getBytes("utf-8"); byte[] result = cipher.doFinal(byteContent); BASE64Encoder encode = new BASE64Encoder (); String strResult=encode.encode(result); return strResult; } catch (Exception e) { e.printStackTrace(); } return null; } |
根据博主：http://www.cnblogs.com/amylis_chen/p/6107162.html#commentform 的经验有了思路
解决办法，通过JAVA代码生成AES的密钥，再通过C#代码进行AES加密
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//JAVA代码生成密钥 String encyKey="合作伙伴提供的密钥 "; KeyGenerator kgen = KeyGenerator.getInstance("AES"); java.security.SecureRandom random = java.security.SecureRandom.getInstance("SHA1PRNG"); random.setSeed(encyKey.getBytes()); kgen.init(128, random); SecretKey secretKey = kgen.generateKey(); byte[] enCodeFormat = secretKey.getEncoded(); BASE64Encoder coder = new BASE64Encoder(); System.out.println(coder.encode(enCodeFormat)); |
C#代码进行AES加密
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class Program { static void Main(string[] args) { //默认密钥向量 var result = AESEncode("123456", "JAVA代码输出的密钥"); Console.WriteLine(result); Console.ReadLine(); } public static string AESEncode(string encryptString, string encryptKey) { if (string.IsNullOrEmpty(encryptString)) return null; Byte[] toEncryptArray = Encoding.UTF8.GetBytes(encryptString); RijndaelManaged rm = new RijndaelManaged { Key = Convert.FromBase64String(encryptKey), Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 }; ICryptoTransform cTransform = rm.CreateEncryptor(); Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); return Convert.ToBase64String(resultArray, 0, resultArray.Length); } } |