第一步：生成对应JAVA AES加密方法的KEY值
private static byte[] encryptJavaAes(string aesKey)
{
byte[] keyArray = null;
using (var sha1 = new SHA1CryptoServiceProvider())
{
byte[] hash = puteHash(Encoding.UTF8.GetBytes(aesKey));
var rd = puteHash(hash);
keyArray = rd.Take(16).ToArray();
/* 将字节流转换成字符串输出
Base64Encoder coder = new Base64Encoder();
coder.GetEncoded(keyArray);
* */
}
return keyArray;
}
第二步：加密对应的字符串
/// <summary>
/// .NET对JAVA进行AES加密
/// </summary>
/// <param name="encryptString">需要加密的字符串</param>
/// <returns></returns>
private static string AESEncode(string encryptString)
{
if (string.IsNullOrEmpty(encryptString)) return null;
Byte[] toEncryptArray = Encoding.UTF8.GetBytes(encryptString);
RijndaelManaged rm = new RijndaelManaged
{
Key = encryptJavaAes("DCS"),//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);
}
第三步：解密加密的字符串
/// <summary>
/// 解密加密的字符串
/// </summary>
/// <param name="toDecrypt">需要解密的字符串</param>
/// <returns></returns>
private static string decrypt(string toDecrypt)
{
string aeskey = System.Configuration.ConfigurationManager.AppSettings["aeskey"];
byte[] keyArray = encryptJavaAes(“DCS”);//Convert.FromBase64String(key);
byte[] toEncryptArray = Convert.FromBase64String(toDecrypt);
RijndaelManaged rDel = new RijndaelManaged();
rDel.Key = keyArray;
rDel.Mode = CipherMode.ECB; //必须设置为ECB
rDel.Padding = PaddingMode.PKCS7; //必须设置为PKCS7
ICryptoTransform cTransform = rDel.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
return UTF8Encoding.UTF8.GetString(resultArray);
}
