问题描述
我在进行基本加密/解密时遇到问题.我四处寻找一个有效的例子,但还没有找到一个有效的例子.
I'm having trouble with basic encryption/decryption. I've looked all around for a working example but haven't quite found a working example.
-我将在 php 中加密,使用cryptojs 解密以提供一小层安全
-I will be encrypting in php, decrypting with cryptojs for a small layer of security
<script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/aes.js"> <? $text = "this is the text here"; $key = "encryptionkey"; $msgEncrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_CBC, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND)); $msgBase64 = trim(base64_encode($msgEncrypted)); echo "<h2>PHP</h2>"; echo "<p>Encrypted:</p>"; echo $msgEncrypted; echo "<p>Base64:</p>"; echo $msgBase64; ?> <p>AES Decrypt</p> <script> var key = 'encryptionkey'; var encrypted = "<?php echo $msgBase64 ?>"; //tried var base64decode = CryptoJS.enc.Base64.parse(encrypted); var decrypted = CryptoJS.AES.decrypt(encrypted, key); console.log( decrypted.toString(CryptoJS.enc.Utf8) ); </script>
我遗漏了哪一步?
推荐答案
我需要同样的东西,我写了一个简短的库,适用于 CryptoJS 3.x 和 PHP,支持 openssl.希望这会有所帮助,源和示例文件在这里 https://github.com/brainfoolong/cryptojs-aes-php
I've required the same thing and i wrote a short library that works for CryptoJS 3.x and PHP with openssl support. Hope this helps, source plus example files here https://github.com/brainfoolong/cryptojs-aes-php
/** * Decrypt data from a CryptoJS json encoding string * * @param mixed $passphrase * @param mixed $jsonString * @return mixed */ function cryptoJsAesDecrypt($passphrase, $jsonString){ $jsondata = json_decode($jsonString, true); $salt = hex2bin($jsondata["s"]); $ct = base64_decode($jsondata["ct"]); $iv = hex2bin($jsondata["iv"]); $concatedPassphrase = $passphrase.$salt; $md5 = array(); $md5[0] = md5($concatedPassphrase, true); $result = $md5[0]; for ($i = 1; $i < 3; $i++) { $md5[$i] = md5($md5[$i - 1].$concatedPassphrase, true); $result .= $md5[$i]; } $key = substr($result, 0, 32); $data = openssl_decrypt($ct, 'aes-256-cbc', $key, true, $iv); return json_decode($data, true); } /** * Encrypt value to a cryptojs compatiable json encoding string * * @param mixed $passphrase * @param mixed $value * @return string */ function cryptoJsAesEncrypt($passphrase, $value){ $salt = openssl_random_pseudo_bytes(8); $salted = ''; $dx = ''; while (strlen($salted) < 48) { $dx = md5($dx.$passphrase.$salt, true); $salted .= $dx; } $key = substr($salted, 0, 32); $iv = substr($salted, 32,16); $encrypted_data = openssl_encrypt(json_encode($value), 'aes-256-cbc', $key, true, $iv); $data = array("ct" => base64_encode($encrypted_data), "iv" => bin2hex($iv), "s" => bin2hex($salt)); return json_encode($data); }
Javascript 库
var CryptoJSAesJson = { stringify: function (cipherParams) { var j = {ct: cipherParams.ciphertext.toString(CryptoJS.enc.Base64)}; if (cipherParams.iv) j.iv = cipherParams.iv.toString(); if (cipherParams.salt) j.s = cipherParams.salt.toString(); return JSON.stringify(j); }, parse: function (jsonStr) { var j = JSON.parse(jsonStr); var cipherParams = CryptoJS.lib.CipherParams.create({ciphertext: CryptoJS.enc.Base64.parse(j.ct)}); if (j.iv) cipherParams.iv = CryptoJS.enc.Hex.parse(j.iv) if (j.s) cipherParams.salt = CryptoJS.enc.Hex.parse(j.s) return cipherParams; } }
Javascript 示例
var encrypted = CryptoJS.AES.encrypt(JSON.stringify("value to encrypt"), "my passphrase", {format: CryptoJSAesJson}).toString(); var decrypted = JSON.parse(CryptoJS.AES.decrypt(encrypted, "my passphrase", {format: CryptoJSAesJson}).toString(CryptoJS.enc.Utf8));
示例 PHP
$encrypted = cryptoJsAesEncrypt("my passphrase", "value to encrypt"); $decrypted = cryptoJsAesDecrypt("my passphrase", $encrypted);