<?php

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:----NjQ3MDg4MzExMDIyNjU0NSAyMzkyNTYxODAyNTEzNDAxIDUwMzI2NzE0NDE4MzQ4Mg==