Sop\JWX\JWE\EncryptionAlgorithm\A128CBCHS256Algorithm

Complexity

Total Complexity

7

Size/Duplication

Total Lines	56
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

7 Methods

Rating	Name	Duplication	Size	Complexity
A	keySize()	0	3	1
A	_macKeyLen()	0	3	1
A	_encKeyLen()	0	3	1
A	encryptionAlgorithmParamValue()	0	3	1
A	_hashAlgo()	0	3	1
A	_tagLen()	0	3	1
A	_cipherMethod()	0	3	1

<?php

declare(strict_types = 1);

namespace Sop\JWX\JWE\EncryptionAlgorithm;

use Sop\JWX\JWA\JWA;

/**
 * Implements AES with 128-bit key in CBC mode with HMAC SHA-256 authentication.
 *
 * @see https://tools.ietf.org/html/rfc7518#section-5.2.3
 */
class A128CBCHS256Algorithm extends AESCBCAlgorithm
{
    /**
     * {@inheritdoc}
     */
    public function keySize(): int
    {
        return 32;
    }

    /**
     * {@inheritdoc}
     */
    public function encryptionAlgorithmParamValue(): string
    {
        return JWA::ALGO_A128CBC_HS256;
    }

    /**
     * {@inheritdoc}
     */
    protected function _cipherMethod(): string
    {
        return 'aes-128-cbc';
    }

    /**
     * {@inheritdoc}
     */
    protected function _hashAlgo(): string
    {
        return 'sha256';
    }

    /**
     * {@inheritdoc}
     */
    protected function _encKeyLen(): int
    {
        return 16;
    }

    /**
     * {@inheritdoc}
     */
    protected function _macKeyLen(): int
    {
        return 16;
    }

    /**
     * {@inheritdoc}
     */
    protected function _tagLen(): int
    {
        return 16;
    }
}