Encrypt in PHP openssl and decrypt in javascript CryptoJS
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 $string_json_fromPHP?>'));
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function CryptoJSAesEncrypt($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");
Thank you!
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