Edit File: Blake2b.php
<?php declare(strict_types=1); namespace Lcobucci\JWT\Signer; use Lcobucci\JWT\Signer; use function hash_equals; use function sodium_crypto_generichash; use function strlen; final class Blake2b implements Signer { private const MINIMUM_KEY_LENGTH_IN_BITS = 256; public function algorithmId(): string { return 'BLAKE2B'; } public function sign(string $payload, Key $key): string { $actualKeyLength = 8 * strlen($key->contents()); if ($actualKeyLength < self::MINIMUM_KEY_LENGTH_IN_BITS) { throw InvalidKeyProvided::tooShort(self::MINIMUM_KEY_LENGTH_IN_BITS, $actualKeyLength); } return sodium_crypto_generichash($payload, $key->contents()); } public function verify(string $expected, string $payload, Key $key): bool { return hash_equals($expected, $this->sign($payload, $key)); } }
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