<?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:----MzQ0NTkzODgxMTYxNjAxMSA4NzEzOTUyODA5MzExOTY2IDk4NTY1ODk5MzM1Mzc2NTU=