256位AES加密和解密
1 /// <summary> 2 /// 256位AES加密 3 /// </summary> 4 /// <param name="toEncrypt"></param> 5 /// <returns></returns> 6 public static string Encrypt(string toEncrypt, string skey, string IV) 7 { 8 //256-AES key 9 //byte[] keyArray = UTF8Encoding.UTF8.GetBytes("12345678123456781234567812345678"); 10 byte[] keyArray = UTF8Encoding.UTF8.GetBytes(skey); 11 byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt); 12 byte[] ivArray = UTF8Encoding.UTF8.GetBytes(IV);//1234567812345678 13 14 RijndaelManaged rDel = new RijndaelManaged(); 15 rDel.Key = keyArray; 16 rDel.Mode = CipherMode.CBC; 17 rDel.Padding = PaddingMode.PKCS7; 18 rDel.IV = ivArray; 19 20 ICryptoTransform cTransform = rDel.CreateEncryptor(); 21 byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); 22 23 return Convert.ToBase64String(resultArray, 0, resultArray.Length); 24 }
/// <summary> /// 256位AES解密 /// </summary> /// <param name="toDecrypt"></param> /// <returns></returns> public static string Decrypt(string toDecrypt, string skey, string IV) { //256-AES key //byte[] keyArray = UTF8Encoding.UTF8.GetBytes("12345678123456781234567812345678"); byte[] keyArray = UTF8Encoding.UTF8.GetBytes(skey); byte[] toDecryptArray = Convert.FromBase64String(toDecrypt); byte[] ivArray = UTF8Encoding.UTF8.GetBytes(IV); //1234567812345678 RijndaelManaged rDel = new RijndaelManaged(); rDel.Key = keyArray; rDel.Mode = CipherMode.CBC; rDel.Padding = PaddingMode.PKCS7; rDel.IV = ivArray; ICryptoTransform cTransform = rDel.CreateDecryptor(); byte[] resultArray = cTransform.TransformFinalBlock(toDecryptArray, 0, toDecryptArray.Length); return UTF8Encoding.UTF8.GetString(resultArray); }
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