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  • C#DES加解密

    public static string Key
            {
                get
                {
                    return key;
                }
                set
                {
                    key = value;
                }
            }
    

    DES加密

            /// <summary>        
            /// DES Encrypt    
            /// </summary>
            /// <param name="encryptString">要加密的字符串</param>
            /// <returns>加密后的字符串</returns>
            public static string DesEncrypt(string encryptString)
            {
                byte[] keyBytes = System.Text.Encoding.UTF8.GetBytes(key.Substring(0, 8));
                byte[] keyIV = keyBytes;
                byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
                System.Security.Cryptography.DESCryptoServiceProvider provider = new System.Security.Cryptography.DESCryptoServiceProvider();
                System.IO.MemoryStream mStream = new System.IO.MemoryStream();
                System.Security.Cryptography.CryptoStream cStream = new System.Security.Cryptography.CryptoStream(mStream, provider.CreateEncryptor(keyBytes, keyIV), System.Security.Cryptography.CryptoStreamMode.Write);
                cStream.Write(inputByteArray, 0, inputByteArray.Length);
                cStream.FlushFinalBlock();
                return Convert.ToBase64String(mStream.ToArray());
    
            }    
    

      

    DES解密

             /// <summary>        
            /// Function : DES Decrypt
            /// </summary>
            /// <param name="decryptString">要解密的字符串</param>
            /// <returns>解密后的字符串</returns>
            public static string DesDecrypt(string decryptString)
            {
                byte[] keyBytes = Encoding.UTF8.GetBytes(key.Substring(0, 8));
                byte[] keyIV = keyBytes;
                byte[] inputByteArray = Convert.FromBase64String(decryptString);
                System.Security.Cryptography.DESCryptoServiceProvider provider = new System.Security.Cryptography.DESCryptoServiceProvider();
                System.IO.MemoryStream mStream = new System.IO.MemoryStream();
                System.Security.Cryptography.CryptoStream cStream = new System.Security.Cryptography.CryptoStream(mStream, provider.CreateDecryptor(keyBytes, keyIV), System.Security.Cryptography.CryptoStreamMode.Write);
                cStream.Write(inputByteArray, 0, inputByteArray.Length);
                cStream.FlushFinalBlock();
                return Encoding.UTF8.GetString(mStream.ToArray());
            }  
    

      

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  • 原文地址:https://www.cnblogs.com/lishuo/p/4041022.html
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