iaik.cms

Interface AuthCipherEngine

All Superinterfaces:

CipherEngine, MacAADEngine, MacEngine

public interface AuthCipherEngine
extends CipherEngine, MacAADEngine

Generic authentication Cipher engine for authenticated data encryption. Used by class EncryptedContentInfoOutputStream for authenticated content encryption with CMS content-type AuthEnvelopedData.
Additional data (which shall be authenticated only but not encrypted) may be set by calling method setAdditionalAuthData, and method getMac returns the calculated message authentication code.

An application that implements its own AuthCipherEngine has to override the following SecurityProvider methods to plug-in its own implementation:

• getAuthCipherEngine(AlgorithmID algorithm, int mode, Key key, AlgorithmParameters params, byte[] aad)
• getAuthCipherEngine(AlgorithmID algorithm, int mode, Key key, AlgorithmParameterSpec params, byte[] aad)

See Also:

SecurityProvider

Field Summary

Fields inherited from interface iaik.cms.CipherEngine

CIPHER_DECRYPT, CIPHER_ENCRYPT, CIPHER_NONE, CIPHER_UNWRAP, CIPHER_WRAP

Method Summary

Modifier and Type	Method and Description
javax.crypto.Cipher	getCipher() Gets the Cipher engine used for encrypting the data.

Methods inherited from interface iaik.cms.CipherEngine

getParameters, initCipher, initCipher, setSecurityProvider

Methods inherited from interface iaik.cms.MacAADEngine

getAdditionalAuthData, setAdditionalAuthData, setMac

Methods inherited from interface iaik.cms.MacEngine

getMac

Method Detail

getCipher

javax.crypto.Cipher getCipher()

Gets the Cipher engine used for encrypting the data.

Returns:

the Cipher engine