PHP
class JoDES { private static $_instance = NULL; /** * @return JoDES */ public static function share() { if (is_null(self::$_instance)) { self::$_instance = new JoDES(); } return self::$_instance; } /** * 加密 * @param string $str 要处理的字符串 * @param string $key 加密Key,为8个字节长度 * @return string */ public function encode($str, $key) { $size = mcrypt_get_block_size(MCRYPT_DES, MCRYPT_MODE_CBC); $str = $this->pkcs5Pad($str, $size); $aaa = mcrypt_cbc(MCRYPT_DES, $key, $str, MCRYPT_ENCRYPT, $key); $ret = base64_encode($aaa); return $ret; } /** * 解密 * @param string $str 要处理的字符串 * @param string $key 解密Key,为8个字节长度 * @return string */ public function decode($str, $key) { $strBin = base64_decode($str); $str = mcrypt_cbc(MCRYPT_DES, $key, $strBin, MCRYPT_DECRYPT, $key); $str = $this->pkcs5Unpad($str); return $str; } function hex2bin($hexData) { $binData = ""; for ($i = 0; $i < strlen($hexData); $i += 2) { $binData .= chr(hexdec(substr($hexData, $i, 2))); } return $binData; } function pkcs5Pad($text, $blocksize) { $pad = $blocksize - (strlen($text) % $blocksize); return $text . str_repeat(chr($pad), $pad); } function pkcs5Unpad($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); } }
C#
public class MyDes { /// <summary> /// DES加密方法 /// </summary> /// <param name="strPlain">明文</param> /// <param name="strDESKey">密钥</param> /// <param name="strDESIV">向量</param> /// <returns>密文</returns> public static string Encode(string source, string _DESKey) { StringBuilder sb = new StringBuilder(); using (DESCryptoServiceProvider des = new DESCryptoServiceProvider()) { byte[] key = ASCIIEncoding.ASCII.GetBytes(_DESKey); byte[] iv = ASCIIEncoding.ASCII.GetBytes(_DESKey); byte[] dataByteArray = Encoding.UTF8.GetBytes(source); des.Mode = System.Security.Cryptography.CipherMode.CBC; des.Key = key; des.IV = iv; string encrypt = ""; using (MemoryStream ms = new MemoryStream()) using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write)) { cs.Write(dataByteArray, 0, dataByteArray.Length); cs.FlushFinalBlock(); encrypt = Convert.ToBase64String(ms.ToArray()); } return encrypt; } } /// <summary> /// 进行DES解密。 /// </summary> /// <param name="pToDecrypt">要解密的base64串</param> /// <param name="sKey">密钥,且必须为8位。</param> /// <returns>已解密的字符串。</returns> public static string Decode(string source, string sKey) { byte[] inputByteArray = System.Convert.FromBase64String(source);//Encoding.UTF8.GetBytes(source); using (DESCryptoServiceProvider des = new DESCryptoServiceProvider()) { des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); System.IO.MemoryStream ms = new System.IO.MemoryStream(); using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write)) { cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); cs.Close(); } string str = Encoding.UTF8.GetString(ms.ToArray()); ms.Close(); return str; } } }