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Direktori : /home2/selectio/www/myclassicfit.com/vendor/aws/aws-sdk-php/src/Crypto/ |
Current File : /home2/selectio/www/myclassicfit.com/vendor/aws/aws-sdk-php/src/Crypto/AbstractCryptoClientV2.php |
<?php namespace Aws\Crypto; use Aws\Crypto\Cipher\CipherMethod; use GuzzleHttp\Psr7\Stream; /** * @internal */ abstract class AbstractCryptoClientV2 { public static $supportedCiphers = ['gcm']; public static $supportedKeyWraps = [ KmsMaterialsProviderV2::WRAP_ALGORITHM_NAME ]; public static $supportedSecurityProfiles = ['V2', 'V2_AND_LEGACY']; public static $legacySecurityProfiles = ['V2_AND_LEGACY']; /** * Returns if the passed cipher name is supported for encryption by the SDK. * * @param string $cipherName The name of a cipher to verify is registered. * * @return bool If the cipher passed is in our supported list. */ public static function isSupportedCipher($cipherName) { return in_array($cipherName, self::$supportedCiphers, true); } /** * Returns an identifier recognizable by `openssl_*` functions, such as * `aes-256-gcm` * * @param string $cipherName Name of the cipher being used for encrypting * or decrypting. * @param int $keySize Size of the encryption key, in bits, that will be * used. * * @return string */ abstract protected function getCipherOpenSslName($cipherName, $keySize); /** * Constructs a CipherMethod for the given name, initialized with the other * data passed for use in encrypting or decrypting. * * @param string $cipherName Name of the cipher to generate for encrypting. * @param string $iv Base Initialization Vector for the cipher. * @param int $keySize Size of the encryption key, in bits, that will be * used. * * @return CipherMethod * * @internal */ abstract protected function buildCipherMethod($cipherName, $iv, $keySize); /** * Performs a reverse lookup to get the openssl_* cipher name from the * AESName passed in from the MetadataEnvelope. * * @param $aesName * * @return string * * @internal */ abstract protected function getCipherFromAesName($aesName); /** * Dependency to provide an interface for building an encryption stream for * data given cipher details, metadata, and materials to do so. * * @param Stream $plaintext Plain-text data to be encrypted using the * materials, algorithm, and data provided. * @param array $options Options for use in encryption. * @param MaterialsProviderV2 $provider A provider to supply and encrypt * materials used in encryption. * @param MetadataEnvelope $envelope A storage envelope for encryption * metadata to be added to. * * @return AesStreamInterface * * @internal */ abstract public function encrypt( Stream $plaintext, array $options, MaterialsProviderV2 $provider, MetadataEnvelope $envelope ); /** * Dependency to provide an interface for building a decryption stream for * cipher text given metadata and materials to do so. * * @param string $cipherText Plain-text data to be decrypted using the * materials, algorithm, and data provided. * @param MaterialsProviderInterface $provider A provider to supply and encrypt * materials used in encryption. * @param MetadataEnvelope $envelope A storage envelope for encryption * metadata to be read from. * @param array $options Options used for decryption. * * @return AesStreamInterface * * @internal */ abstract public function decrypt( $cipherText, MaterialsProviderInterfaceV2 $provider, MetadataEnvelope $envelope, array $options = [] ); }