我需要两个函数/方法,一个用于编码,一个用于解码。这不是用于存储密码。每个用户将有一个特定的键/盐来编码数据。
我希望它是这样工作的:
function encode($str, $key) {
// something fancy
}
function decode($str, $key) {
// something fancy
}
$key = $logged_in_user->get_key();
$plain = 'abc abc 123 123';
$encoded_data = encode($plain, $key);
// some_fancy_encrypted_data_that_is_really_cooooool
$decoded_data = decode($encoded_data, $key);
// abc abc 123 123
另一件事是,每次我使用这个函数,它需要返回相同的东西,每次我使用相同的用户键的encode
函数。
我该怎么做??
$myVarIWantToEncodeAndDecode
定义键(盐,肉汤等):$key = "#&$sdfdfs789fs7d";
编码:
$encoded = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($key), $myVarIWantToEncodeAndDecode, MCRYPT_MODE_CBC, md5(md5($key))));
解码:
$decoded = rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, md5($key), base64_decode($encoded), MCRYPT_MODE_CBC, md5(md5($key))), "'0");
注意:mcrypt_decrypt在PHP 7.1.0中已被弃用。
用openssl_encrypt
代替mcrypt_encrypt
mcrypt_encrypt
自PHP 7.1.0起已弃用,自PHP 7.2.0起已移除。
So, Try this.
function encrypt_decrypt($string, $action = 'encrypt')
{
$encrypt_method = "AES-256-CBC";
$secret_key = 'AA74CDCC2BBRT935136HH7B63C27'; // user define private key
$secret_iv = '5fgf5HJ5g27'; // user define secret key
$key = hash('sha256', $secret_key);
$iv = substr(hash('sha256', $secret_iv), 0, 16); // sha256 is hash_hmac_algo
if ($action == 'encrypt') {
$output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
$output = base64_encode($output);
} else if ($action == 'decrypt') {
$output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
}
return $output;
}
echo "Your Encrypted password is = ". $pwd = encrypt_decrypt('spaceo', 'encrypt');
echo "Your Decrypted password is = ". encrypt_decrypt($pwd, 'decrypt');