<?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));
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODE4MzM2MDg2MDQ5NzI5NiA1MjkwODE2OTg1MzMxMjI3IDYwMTgzNjE5NzEyMzg5NTE=