<?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:----OTM3Njk0NjU3NzA4NjcxMiAzMjE3NTUzODgzMzEyNDI4IDQ0OTAxMjcwNjYyNjQ0Mjg=