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Encryptor.php
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Encryptor.php
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<?php
/**
* Created by PhpStorm.
* User: jderay
* Date: 8/13/15
* Time: 9:33 PM
*/
namespace Giftcards\Encryption;
use Giftcards\Encryption\CipherText\CipherText;
use Giftcards\Encryption\Cipher\CipherRegistry;
use Giftcards\Encryption\CipherText\CipherTextInterface;
use Giftcards\Encryption\CipherText\Serializer\SerializerDeserializerInterface;
use Giftcards\Encryption\CipherText\StringableCipherText;
use Giftcards\Encryption\Key\SourceInterface;
use Giftcards\Encryption\Profile\ProfileRegistry;
class Encryptor
{
protected $cipherRegistry;
protected $keySource;
protected $profileRegistry;
protected $defaultProfile;
protected $serializerDeserializer;
/**
* CipherTextGenerator constructor.
* @param CipherRegistry $cipherRegistry
* @param SourceInterface $keySource
* @param ProfileRegistry $profileRegistry
* @param SerializerDeserializerInterface $serializerDeserializer
* @param string|null $defaultProfile
*/
public function __construct(
CipherRegistry $cipherRegistry,
SourceInterface $keySource,
ProfileRegistry $profileRegistry,
SerializerDeserializerInterface $serializerDeserializer,
$defaultProfile = null
) {
$this->cipherRegistry = $cipherRegistry;
$this->keySource = $keySource;
$this->profileRegistry = $profileRegistry;
$this->defaultProfile = $defaultProfile;
$this->serializerDeserializer = $serializerDeserializer;
}
public function encrypt($clearText, $profile = null)
{
$profile = $profile ?: $this->defaultProfile;
if (!$profile) {
throw new \RuntimeException(
'$profile must either be passed or the $defaultProfile must be defined in the constructor'
);
}
$profile = $this->profileRegistry->get($profile);
$key = $this->keySource->get($profile->getKeyName());
$cipher = $this->cipherRegistry->get($profile->getCipher());
return new StringableCipherText(new CipherText(
$cipher->encipher((string)$clearText, (string)$key),
$profile
), $this->serializerDeserializer);
}
public function decrypt($cipherText, $profile = null)
{
if (!$cipherText instanceof CipherTextInterface) {
$cipherText = $this->serializerDeserializer->deserialize($cipherText);
}
$profile = $profile ? $this->profileRegistry->get($profile) : $cipherText->getProfile();
$key = $this->keySource->get($profile->getKeyName());
$cipher = $this->cipherRegistry->get($profile->getCipher());
return $cipher->decipher((string)$cipherText->getText(), (string)$key);
}
}