TripleDES说明：

    TripleDES（3Des）和Des都是对称加密算法，TripleDes是Des加密算法的增强版本，这里主要说的是TripleDes加密算法的应用。

    工作中由于涉及到不同系统的对接，整理了Java、C#和php通用的算法代码，直接看代码：

 

Java版本：

package com.jaamy.common.util;    import javax.crypto.Cipher;import javax.crypto.SecretKey;import javax.crypto.spec.SecretKeySpec;import org.apache.commons.codec.binary.Base64;    public class DefaultEncryptor {            private static final String ALGORITHM = "DESede";        //默认为 DESede/ECB/PKCS5Padding    private static final String CIPHER_TRANSFORMAT = "DESede/ECB/PKCS5Padding";        private static final String ENCODING = "UTF-8";             public static String encryptToBase64(String plainText, String key) throws Exception {        SecretKey deskey = new SecretKeySpec(key.getBytes(), ALGORITHM);        Cipher c1 = Cipher.getInstance(CIPHER_TRANSFORMAT);        c1.init(Cipher.ENCRYPT_MODE, deskey);        byte[] result = c1.doFinal(plainText.getBytes(ENCODING));             return Base64.encodeBase64String(result);     }       public static String decryptFromBase64(String base64, String key) throws Exception {        SecretKey deskey = new SecretKeySpec(key.getBytes(), ALGORITHM);        Cipher c1 = Cipher.getInstance(CIPHER_TRANSFORMAT);        c1.init(Cipher.DECRYPT_MODE, deskey);        byte[] result = c1.doFinal(Base64.decodeBase64(base64));              return new String(result, ENCODING);    }}

C#版本：

using System;using System.IO;using System.Security.Cryptography;using System.Security.Cryptography.X509Certificates;using System.Text;using System.Web;   namespace DesEncryptor{    class DefaultEncryptor    {        #region DES 加密        public static string encryptToBase64(string plainText, string key)        {            try            {                // Create a MemoryStream.                MemoryStream mStream = new MemoryStream();                TripleDESCryptoServiceProvider tripleDESCryptoServiceProvider = new TripleDESCryptoServiceProvider();                tripleDESCryptoServiceProvider.Key = Encoding.ASCII.GetBytes(key);                tripleDESCryptoServiceProvider.Padding = PaddingMode.PKCS7;//补位                tripleDESCryptoServiceProvider.Mode = CipherMode.ECB;//CipherMode.CBC                CryptoStream cStream = new CryptoStream(mStream,                    tripleDESCryptoServiceProvider.CreateEncryptor(),                    CryptoStreamMode.Write);                   // Convert the passed string to a byte array.                byte[] toEncrypt = Encoding.UTF8.GetBytes(plainText);                   // Write the byte array to the crypto stream and flush it.                cStream.Write(toEncrypt, 0, toEncrypt.Length);                cStream.FlushFinalBlock();                   // Get an array of bytes from the                // MemoryStream that holds the                // encrypted data.                byte[] ret = mStream.ToArray();                   // Close the streams.                cStream.Close();                mStream.Close();                   // Return the encrypted buffer.                return Convert.ToBase64String(ret);            }            catch (CryptographicException e)            {                Console.WriteLine("A Cryptographic error occurred: {0}", e.Message);                return null;            }        }        #endregion           #region DES解密        public static string decryptFromBase64(string base64, string key)        {            try            {                byte[] inputByteArray = Convert.FromBase64String(base64);                // Create a new MemoryStream using the passed                // array of encrypted data.                MemoryStream msDecrypt = new MemoryStream(inputByteArray);                   // Create a CryptoStream using the MemoryStream                TripleDESCryptoServiceProvider tripleDESCryptoServiceProvider = new TripleDESCryptoServiceProvider();                tripleDESCryptoServiceProvider.Key = ASCIIEncoding.ASCII.GetBytes(key);                tripleDESCryptoServiceProvider.Padding = PaddingMode.PKCS7;//补位                tripleDESCryptoServiceProvider.Mode = CipherMode.ECB;//CipherMode.CBC                CryptoStream csDecrypt = new CryptoStream(msDecrypt,                    tripleDESCryptoServiceProvider.CreateDecryptor(),                    CryptoStreamMode.Read);                   // Create buffer to hold the decrypted data.                byte[] fromEncrypt = new byte[inputByteArray.Length];                   // Read the decrypted data out of the crypto stream                // and place it into the temporary buffer.                csDecrypt.Read(fromEncrypt, 0, fromEncrypt.Length);                   //Convert the buffer into a string and return it.                return Encoding.UTF8.GetString(fromEncrypt).TrimEnd('\0');            }            catch (CryptographicException e)            {                Console.WriteLine("A Cryptographic error occurred: {0}", e.Message);                return null;            }           }        #endregion    }}

php版本：

      pkcs5_pad($input, $size);         $key = str_pad($key,24,'0');         $td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, '');         $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);         @mcrypt_generic_init($td, $key, $iv);         $data = mcrypt_generic($td, $input);         mcrypt_generic_deinit($td);         mcrypt_module_close($td);         $data = base64_encode($data);         return $data;     }                      function decrypt($encrypted, $key){         $encrypted = base64_decode($encrypted);         $key = str_pad($key,24,'0');         $td = mcrypt_module_open(MCRYPT_3DES,'',MCRYPT_MODE_ECB,'');         $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);         $ks = mcrypt_enc_get_key_size($td);         @mcrypt_generic_init($td, $key, $iv);         $decrypted = mdecrypt_generic($td, $encrypted);         mcrypt_generic_deinit($td);         mcrypt_module_close($td);         $y=$this->pkcs5_unpad($decrypted);         return $y;     }                      function pkcs5_pad ($text, $blocksize) {         $pad = $blocksize - (strlen($text) % $blocksize);         return $text . str_repeat(chr($pad), $pad);     }                      function pkcs5_unpad($text){         $pad = ord($text{strlen($text)-1});         if ($pad > strlen($text)) {             return false;         }         if (strspn($text, chr($pad), strlen($text) - $pad) != $pad){             return false;         }         return substr($text, 0, -1 * $pad);     }}                 $des = new CryptDes();$encrypt_str = $des->encrypt("1111","012345678901234567890123");//加密字符串echo $encrypt_str."\n";echo $decrypt_str = $des->decrypt($encrypt_str,"012345678901234567890123");//解密字符串?>

 

https://www.cnblogs.com/jaamy/p/6118622.html