Bacon\Pdf\Encryption\Pdf11Encryption

Complexity

Total Complexity

4

Size/Duplication

Total Lines	39
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Importance

Changes	2
Bugs	0	Features	1

4 Methods

Rating	Name	Duplication	Size	Complexity
A	encrypt()	0	9	1
A	getRevision()	0	4	1
A	getAlgorithm()	0	4	1
A	getKeyLength()	0	4	1

<?php
/**
 * BaconPdf
 *
 * @link      http://github.com/Bacon/BaconPdf For the canonical source repository
 * @copyright 2015 Ben Scholzen (DASPRiD)
 * @license   http://opensource.org/licenses/BSD-2-Clause Simplified BSD License
 */

namespace Bacon\Pdf\Encryption;

/**
 * Encryption for handling PDF version 1.1 and above.
 */
class Pdf11Encryption extends AbstractEncryption
{
    /**
     * {@inheritdoc}
     */
    public function encrypt($plaintext, $objectNumber, $generationNumber)
    {
        return openssl_encrypt(
            $plaintext,
            'rc4',
            $this->computeIndividualEncryptionKey($objectNumber, $generationNumber),
            true
        );
    }

    /**
     * {@inheritdoc}
     */
    protected function getRevision()
    {
        return 2;
    }

    /**
     * {@inheritdoc}
     */
    protected function getAlgorithm()
    {
        return 1;
    }

    /**
     * {@inheritdoc}
     */
    protected function getKeyLength()
    {
        return 40;
    }
}