60 lines
1.9 KiB
PHP
60 lines
1.9 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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namespace TYPO3\CMS\Core\Crypto\Cipher;
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use TYPO3\CMS\Core\Utility\StringUtility;
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final readonly class CipherValue implements \Stringable
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{
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public static function fromSerialized(string $value): self
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{
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$data = json_decode(StringUtility::base64urlDecode($value) ?: '', true);
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$nonce = StringUtility::base64urlDecode($data['nonce'] ?? '');
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$cipher = StringUtility::base64urlDecode($data['cipher'] ?? '');
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if (empty($nonce) || empty($cipher)) {
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throw new CipherException('Incorrect encoded message format', 1762450821);
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}
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return new self($nonce, $cipher);
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}
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public function __construct(public string $nonce, public string $cipher)
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{
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if (strlen($nonce) !== SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES) {
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throw new CipherException('Incorrect nonce byte length', 1762450477);
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}
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}
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public function __toString(): string
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{
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return $this->encode();
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}
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public function encode(): string
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{
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$data = [
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'nonce' => StringUtility::base64urlEncode($this->nonce),
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'cipher' => StringUtility::base64urlEncode($this->cipher),
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];
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try {
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return StringUtility::base64urlEncode(json_encode($data, JSON_UNESCAPED_SLASHES | JSON_THROW_ON_ERROR));
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} catch (\JsonException) {
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throw new CipherException('Failed to encode cipher value', 1763068727);
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}
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}
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}
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