在 PHP openssl 中加密并在 javascript CryptoJS 中解密

Encrypt in PHP openssl and decrypt in javascript CryptoJS(在 PHP openssl 中加密并在 javascript CryptoJS 中解密)

问题描述

我正在使用 PHP 加密一些参数

I'm encrypting some parameters in PHP using

 openssl("parameter", "AES-256-ECB", "client")

我希望在 CryptoJS 中解密:

CryptoJS.AES.decrypt(parameter, "client", {mode: CryptoJS.mode.ECB}).toString(CryptoJS.enc.Utf8);

但它抛出一个空字符串.

but it's throwing an empty string.

有什么建议吗?

推荐答案

CryptoJS: PHP openssl encrypt -> javascript Describe

PHP:

function CryptoJSAesEncrypt($passphrase, $plain_text){

    $salt = openssl_random_pseudo_bytes(256);
    $iv = openssl_random_pseudo_bytes(16);
    //on PHP7 can use random_bytes() istead openssl_random_pseudo_bytes()
    //or PHP5x see : https://github.com/paragonie/random_compat

    $iterations = 999;  
    $key = hash_pbkdf2("sha512", $passphrase, $salt, $iterations, 64);

    $encrypted_data = openssl_encrypt($plain_text, 'aes-256-cbc', hex2bin($key), OPENSSL_RAW_DATA, $iv);

    $data = array("ciphertext" => base64_encode($encrypted_data), "iv" => bin2hex($iv), "salt" => bin2hex($salt));
    return json_encode($data);
}

$string_json_fromPHP = CryptoJSAesEncrypt("your passphrase", "your plain text");

JS:

function CryptoJSAesDecrypt(passphrase,encrypted_json_string){

    var obj_json = JSON.parse(encrypted_json_string);

    var encrypted = obj_json.ciphertext;
    var salt = CryptoJS.enc.Hex.parse(obj_json.salt);
    var iv = CryptoJS.enc.Hex.parse(obj_json.iv);   

    var key = CryptoJS.PBKDF2(passphrase, salt, { hasher: CryptoJS.algo.SHA512, keySize: 64/8, iterations: 999});


    var decrypted = CryptoJS.AES.decrypt(encrypted, key, { iv: iv});

    return decrypted.toString(CryptoJS.enc.Utf8);
}

console.log(CryptoJSAesDecrypt('your passphrase','<?php echo $string_json_fromPHP?>'));

CryptoJS:javascript 加密 -> PHP openssl 解密

JS:

function CryptoJSAesEncrypt(passphrase, plain_text){

    var salt = CryptoJS.lib.WordArray.random(256);
    var iv = CryptoJS.lib.WordArray.random(16);
    //for more random entropy can use : https://github.com/wwwtyro/cryptico/blob/master/random.js instead CryptoJS random() or another js PRNG

    var key = CryptoJS.PBKDF2(passphrase, salt, { hasher: CryptoJS.algo.SHA512, keySize: 64/8, iterations: 999 });

    var encrypted = CryptoJS.AES.encrypt(plain_text, key, {iv: iv});

    var data = {
        ciphertext : CryptoJS.enc.Base64.stringify(encrypted.ciphertext),
        salt : CryptoJS.enc.Hex.stringify(salt),
        iv : CryptoJS.enc.Hex.stringify(iv)    
    }

    return JSON.stringify(data);
}

PHP:

function CryptoJSAesDecrypt($passphrase, $jsonString){

    $jsondata = json_decode($jsonString, true);
    try {
        $salt = hex2bin($jsondata["salt"]);
        $iv  = hex2bin($jsondata["iv"]);          
    } catch(Exception $e) { return null; }

    $ciphertext = base64_decode($jsondata["ciphertext"]);
    $iterations = 999; //same as js encrypting 

    $key = hash_pbkdf2("sha512", $passphrase, $salt, $iterations, 64);

    $decrypted= openssl_decrypt($ciphertext , 'aes-256-cbc', hex2bin($key), OPENSSL_RAW_DATA, $iv);

    return $decrypted;

}

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