1<?php
2declare(strict_types=1);
3namespace ParagonIE\ConstantTime;
4
5/**
6 *  Copyright (c) 2016 - 2018 Paragon Initiative Enterprises.
7 *  Copyright (c) 2014 Steve "Sc00bz" Thomas (steve at tobtu dot com)
8 *
9 *  Permission is hereby granted, free of charge, to any person obtaining a copy
10 *  of this software and associated documentation files (the "Software"), to deal
11 *  in the Software without restriction, including without limitation the rights
12 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 *  copies of the Software, and to permit persons to whom the Software is
14 *  furnished to do so, subject to the following conditions:
15 *
16 *  The above copyright notice and this permission notice shall be included in all
17 *  copies or substantial portions of the Software.
18 *
19 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 *  SOFTWARE.
26 */
27
28/**
29 * Interface EncoderInterface
30 * @package ParagonIE\ConstantTime
31 */
32interface EncoderInterface
33{
34    /**
35     * Convert a binary string into a hexadecimal string without cache-timing
36     * leaks
37     *
38     * @param string $binString (raw binary)
39     * @return string
40     */
41    public static function encode(string $binString): string;
42
43    /**
44     * Convert a binary string into a hexadecimal string without cache-timing
45     * leaks
46     *
47     * @param string $encodedString
48     * @param bool $strictPadding Error on invalid padding
49     * @return string (raw binary)
50     */
51    public static function decode(string $encodedString, bool $strictPadding = false): string;
52}
53