public static Crypt::hmacBase64($data, $key)
Calculates a base-64 encoded, URL-safe sha-256 hmac.
Parameters
mixed $data: Scalar value to be validated with the hmac.
mixed $key: A secret key, this can be any scalar value.
Return value
string A base-64 encoded sha-256 hmac, with + replaced with -, / with _ and any = padding characters removed.
File
- core/lib/Drupal/Component/Utility/Crypt.php, line 46
Class
- Crypt
- Utility class for cryptographically-secure string handling routines.
Namespace
Drupal\Component\Utility
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 | public static function hmacBase64($data, $key) { // $data and $key being strings here is necessary to avoid empty string // results of the hash function if they are not scalar values. As this // function is used in security-critical contexts like token validation it // is important that it never returns an empty string. if (!is_scalar($data) || !is_scalar($key)) { throw new \InvalidArgumentException('Both parameters passed to \Drupal\Component\Utility\Crypt::hmacBase64 must be scalar values.'); } $hmac = base64_encode(hash_hmac('sha256', $data, $key, TRUE)); // Modify the hmac so it's safe to use in URLs. return str_replace(['+', '/', '='], ['-', '_', ''], $hmac);} |
Please login to continue.