oracle des and c# des

喜欢ヅ旅行 2023-01-09 01:29 150阅读 0赞

/// <summary>
            /// DES加密算法，使用CBC模式进行加密 
            /// </summary>
            /// <param name="strToEncrypt"></param>
            /// <param name="sKey"></param>
            /// <param name="paddingMode"></param>
            /// <returns>返回的是十六进制数据字符串</returns>
            public string DESEncryptByPS(string strToEncrypt)
            {
                strToEncrypt = pkcs5Pad(strToEncrypt);
                var result = string.Empty;
                using (var des = new DESCryptoServiceProvider())
                {
                    byte[] inputByteArray = Encoding.UTF8.GetBytes(strToEncrypt);
                    des.Key = Encoding.UTF8.GetBytes(_key);
                    des.Mode = CipherMode.CBC;
                    des.Padding = PaddingMode.None;
                    des.IV = new byte[des.KeySize / 8];
                    byte[] bysEncrypted =
                        des.CreateEncryptor().TransformFinalBlock(inputByteArray, 0, inputByteArray.Length);
                    result = BitConverter.ToString(bysEncrypted).Replace("-", "");
                }
                return result;
            }
    
            /// <summary>
            /// 字符串长度补位
            /// </summary>
            /// <param name="souce"></param>
            /// <returns></returns>
            private string pkcs5Pad(string souce)
            {
                // 密文和密钥的长度必须是8的倍数
                var PAD_STR = "\0";
                if (0 == souce.Length % 8)
                {
                    return souce;
                }
                StringBuilder tmp = new StringBuilder(souce);
                while (0 != tmp.Length % 8)
                {
                    tmp.Append(PAD_STR);
                }
                return tmp.ToString();
            }

toolkit.DESDECRYPT(input_string => UTL_RAW.CAST_TO_varchar2(p_text),key_string =>p_key, decrypted_string=> v_text);