小编给大家分享一下PHP中DES加解密的案例,希望大家阅读完这篇文章后大所收获,下面让我们一起去探讨吧!
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<?php require_once('Des.php'); $des = new Des(); $data['a'] = 'a'; $data['b'] = 'b'; $conf = ['appkey'=>'AbcdefghijklmnopqrstuvwX','secretcode'=>'Abcdefgh']; $encode = $des->encode($data, $conf); print_r($encode); echo "<br>"; $decode = $des->decode($encode,$conf); print_r($decode); ?>
Des.php
<?php require_once('TripleDES.php'); class Des { public static function encode($data, $configKey) { $tripleDes = new TripleDES(); if (is_array($data)) { $data = json_encode($data); } return $tripleDes->encode($data, $configKey["appkey"], $configKey["secretcode"]); } public static function decode($data, $configKey) { $tripleDes = new TripleDES(); return $tripleDes->decode($data, $configKey["appkey"], $configKey["secretcode"]); } public static function encodeArr($data, $configKey) { $data = json_encode($data); return self::encode($data, $configKey); } public static function decodeArr($data, $configKey) { $res = self::decode($data, $configKey); return json_decode($res,true); } }
TripleDES.php
<?php class TripleDES { public static function genIvParameter() { return mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_TRIPLEDES, MCRYPT_MODE_CBC), MCRYPT_RAND); } private static function pkcs5Pad($text, $blocksize) { $pad = $blocksize - (strlen($text) % $blocksize); // in php, strlen returns the bytes of $text return $text . str_repeat(chr($pad), $pad); } private static function pkcs5Unpad($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 * $pad); } public static function encryptText($plain_text, $key, $iv) { $padded = TripleDES::pkcs5Pad($plain_text, mcrypt_get_block_size(MCRYPT_TRIPLEDES, MCRYPT_MODE_CBC)); return mcrypt_encrypt(MCRYPT_TRIPLEDES, $key, $padded, MCRYPT_MODE_CBC, $iv); } public static function decryptText($cipher_text, $key, $iv) { if(function_exists('mcrypt_decrypt')){ $plain_text = mcrypt_decrypt(MCRYPT_TRIPLEDES, $key, $cipher_text, MCRYPT_MODE_CBC, $iv); }else{ $plain_text = openssl_decrypt($cipher_text, 'DES-EDE3-CBC',$key, OPENSSL_NO_PADDING,$iv); } return TripleDES::pkcs5Unpad($plain_text); } public static function decode($cipher_text, $key, $iv) { $cipher_text = base64_decode($cipher_text); $cipher_text = TripleDES::decryptText($cipher_text, $key, $iv); return $cipher_text; } public static function encode($cipher_text, $key, $iv) { $cipher_text = TripleDES::encryptText($cipher_text, $key, $iv); return base64_encode($cipher_text); } }
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