Signer.php

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<?php

declare(strict_types=1);

namespace ILIAS\FileDelivery\Token\Signer;

use ILIAS\FileDelivery\Token\Signer\Key\Signing\SigningKey;

interface Signer
{
    public const SEPARATOR = '.';

    public function sign(
        string $signable_payload,
        SigningKey $signing_key,
    ): string;

    public function verify(
        string $data,
        string $signature,
        int $validity,
        SigningKey $signing_key
    ): bool;
}