C# ASE加密解密

　　 /// <summary>
    /// ASE_128_ECB_无填充_64Base_加密函数
    /// </summary>
    /// <param name="content">要加密的内容</param>
    /// <param name="key">一定要16位的密钥</param>
    /// <returns>加密的字符串（字节）</returns>
    public static byte[] Func_AES128加密(string content, string key)
    {
        byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
        byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(content);

        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);

        //返回字节数组，可用Convert.FromBase64String（）转换为字节
        //return Convert.ToBase64String(resultArray, 0, resultArray.Length);    

        return resultArray;
    }





    /// <summary>
    ///  ASE_128_ECB_无填充_64Base_解密函数
    /// </summary>
    /// <param name="content">密串（字节）</param>
    /// <param name="keyArray">密钥（字节）</param>
    /// <returns>解密后的字符串</returns>
    public static byte[] Func_AES128解密(byte[] content, byte[] keyArray)
    #region
    {

        RijndaelManaged rDel = new RijndaelManaged();
        rDel.Key = keyArray;
        rDel.Mode = CipherMode.ECB;
        rDel.Padding = PaddingMode.None;
        rDel.BlockSize = 128;

        ICryptoTransform cTransform = rDel.CreateDecryptor();
        byte[] resultArray = cTransform.TransformFinalBlock(content, 0, content.Length);

        return resultArray;

    }
    #endregion





使用：

       byte[] _val1 = Func_AES128加密("Lee", "abcdef1234567890");

        byte[] _key = Encoding.UTF8.GetBytes("abcdef1234567890");
        
        byte[] _return1 = Func_AES128解密(_val1, _key);

        TextBox2.Text = Encoding.UTF8.GetString(_return1);