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PHP ?? ?? ??
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? ??? ?? PHP ???? PHP?? JavaScript CryptoJS AES ??? ???? ???? ??? ??????

PHP?? JavaScript CryptoJS AES ??? ???? ???? ??? ??????

Nov 02, 2024 am 11:09 AM

How to Decrypt JavaScript CryptoJS AES Encrypted Data in PHP?

JavaScript? ??? ? PHP? ?? ??

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???? CryptoJS AES ???? ???? JavaScript? ????? ????? ????. mcrypt_decrypt()? ???? PHP?? ?? ??? ????? ??? ??? ??????.

???

? ???? JavaScript?? ??? ?? ??? ??(IV)? ???? ? ???? ???? ?????. PHP. CryptoJS? ????? ???? ??? ?? ????? ??, PHP? mcrypt_decrypt()? ?? ?????.

PHP ?? ?? ??

?? ???? ???? ????? PHP ??? ???? ??? ?? IV? ???? ???. JavaScript ??? ??? ???? ????? ??? ?????. ?? ?? ?? ? ?? ??(HKDF)? ???? evpKDF()? ?? ??? ???? ??? ? ????.

<code class="php">function evpKDF($password, $salt, $keySize = 8, $ivSize = 4, $iterations = 1, $hashAlgorithm = "md5") {
    // ... Implementation ...
}</code>

?? IV? ???? ??? ?? mcrypt_decrypt()? ??? ? ????. :

<code class="php">$keyAndIV = evpKDF("Secret Passphrase", hex2bin($saltHex));
$decryptPassword = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, 
        $keyAndIV["key"], 
        hex2bin($cipherTextHex), 
        MCRYPT_MODE_CBC, 
        $keyAndIV["iv"]);</code>

OpenSSL? ??? ?? ??

?? OpenSSL ??? ???? ???? ??? ? ????.

<code class="php">function decrypt($ciphertext, $password) {
    $ciphertext = base64_decode($ciphertext);
    if (substr($ciphertext, 0, 8) != "Salted__") {
        return false;
    }
    $salt = substr($ciphertext, 8, 8);
    $keyAndIV = evpKDF($password, $salt);
    $decryptPassword = openssl_decrypt(
            substr($ciphertext, 16), 
            "aes-256-cbc",
            $keyAndIV["key"], 
            OPENSSL_RAW_DATA, // base64 was already decoded
            $keyAndIV["iv"]);

    return $decryptPassword;
}</code>

? ??? PHP?? JavaScript CryptoJS AES ??? ???? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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