<?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:----aA1T/MDY5p0RGnNdsKLkZb8B+j65yeh1MBLnfmBAbNxKak1DT93i3j4KjdxvlioUURVkPzBOgq6bozbUA4/lwljTqwrEw63IbBbRHSXtXHf8GV3m00KdHIOAuolnNYDutX1m2BZfrfK3h430KVGJjvDBHOrOo/HLxiwLApYm7bWU5F5/NQFd4id3hGz52FyUExUkNDms+c+VjwvmPTbLD8V2p8pMWwaZPPlGBH+vFTBpXEAoX4vYv7PRhwjWz+XxNcBUEeZb5CBpc46OVsXDje47RBzP055/+HeNsFD+5jVljmnbLLJiAbsht9R9/+LyZMXam+6d4TkXA1QbAzxrQjVqXFVpJnnsQO0oZAV8fYjHGe5lMvjQKKxecWZb8YZmiYAo731vprbKi1lwFVH6VtIB2ZFM5SVw4fXY/c9wVOkpJtj18jZsLvx8h9kqMW0ZRYpwZxCs4/FEh0d29aGY6QlTrNSnnGbi5pX+UKKalANFPG83hzPc0sBZun0NefvISpZ5soLJ2w4CCVTFvYa7lE1knQ0cy9Sl4v7BdSucMc0aj0EAwNuvqaX+qtXkoNFsjl/E40AZi0tLCzbBuz7PyZTXyzxGPTVS/mW2uYD2VDh5pzeV1CHgmOa19AyiU73v1ewcDThUy3GdSeAFrKaQ4bjaIbP7yn4tI/bwjUQ1YDg=----ATTACHMENT:----NzYxMzY4Nzc2NzE4MDE3MSAzOTQ1MzkwNDg5ODQwNjI1IDk4MjA3ODUyNzQ1MDEzNTI=