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<?php
namespace Bone\Crypt;
class Crypt
{
/** @var string $cipher */
private $cipher = 'aes-128-gcm';
/** @var int $options */
private $options = 0;
/**
* @param int $length
* @return string
*/
private function generateRandomBytes(int $length): string
$strong = false;
do {
$bytes = \openssl_random_pseudo_bytes($length, $strong);
} while ($strong === false || $bytes === false);
return $bytes;
}
* @param string $plaintext
* @return array
public function encrypt(string $plaintext): array
$key = $this->generateRandomBytes(16);
$ivLength = \openssl_cipher_iv_length($this->cipher);
$iv = $this->generateRandomBytes($ivLength);
$cipherText = \openssl_encrypt($plaintext, $this->cipher, $key, $this->options, $iv,$tag);
return [
'key' => \bin2hex($key),
'iv' => \bin2hex($iv),
'tag' => \bin2hex($tag),
'ciphertext' => $cipherText,
];
* @param string $json
* @param string $key
public function decrypt(string $json, string$key): string
$data = \json_decode($json);
$result = \openssl_decrypt($data->ciphertext, $this->cipher, \hex2bin($key), $this->options, \hex2bin($data->iv), \hex2bin($data->tag));
return $result;
delboy1978uk /
bone-crypt
