org.bouncycastle.bcpg
Class SymmetricEncIntegrityPacket

java.lang.Object
  |
  +--org.bouncycastle.bcpg.Packet
        |
        +--org.bouncycastle.bcpg.InputStreamPacket
              |
              +--org.bouncycastle.bcpg.SymmetricEncIntegrityPacket

All Implemented Interfaces:

BCPGHeaderObject, PacketTags

public class SymmetricEncIntegrityPacket

extends InputStreamPacket

implements BCPGHeaderObject

A symmetric key encrypted packet with an associated integrity check code.

Field Summary

static int	VERSION_1 Version 1 SEIPD packet.
static int	VERSION_2 Version 2 SEIPD packet.

Fields inherited from interface org.bouncycastle.bcpg.PacketTags

AEAD_ENC_DATA, COMPRESSED_DATA, EXPERIMENTAL_1, EXPERIMENTAL_2, EXPERIMENTAL_3, EXPERIMENTAL_4, LITERAL_DATA, MARKER, MOD_DETECTION_CODE, ONE_PASS_SIGNATURE, PADDING, PUBLIC_KEY, PUBLIC_KEY_ENC_SESSION, PUBLIC_SUBKEY, RESERVED, SECRET_KEY, SECRET_SUBKEY, SIGNATURE, SYM_ENC_INTEGRITY_PRO, SYMMETRIC_KEY_ENC, SYMMETRIC_KEY_ENC_SESSION, TRUST, USER_ATTRIBUTE, USER_ID

Constructor Summary

SymmetricEncIntegrityPacket()
Deprecated. use createVersion1Packet()

Method Summary

static byte[]	createAAData(int version, int cipherAlgorithm, int aeadAlgorithm, int chunkSize)
static SymmetricEncIntegrityPacket	createVersion1Packet()
static SymmetricEncIntegrityPacket	createVersion2Packet(int algorithm, int aeadAlgorithm, int chunkSize, byte[] salt)
void	encode(BCPGOutputStream bcpgOut)
byte[]	getAAData() Return the AEAD additional authenticated data, which is also used as HKDF info.
int	getAeadAlgorithm() Return the AEAD algorithm.
int	getChunkSize() Return the chunksize for the AEAD construction.
int	getCipherAlgorithm() Return the cipher algorithm.
byte[]	getSalt() Return the salt used to derive the message key.
int	getType() Return the header type.
int	getVersion()

Methods inherited from class org.bouncycastle.bcpg.InputStreamPacket

getInputStream

Methods inherited from class org.bouncycastle.bcpg.Packet

getPacketTag, hasNewPacketFormat, isCritical

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VERSION_1

public static final int VERSION_1

Version 1 SEIPD packet. Used only with SymmetricKeyEncSessionPacket.VERSION_4 or PublicKeyEncSessionPacket.VERSION_3.

VERSION_2

public static final int VERSION_2

Version 2 SEIPD packet. Used only with SymmetricKeyEncSessionPacket.VERSION_6 or PublicKeyEncSessionPacket.VERSION_6.

Constructor Detail

SymmetricEncIntegrityPacket

public SymmetricEncIntegrityPacket()

Deprecated. use createVersion1Packet()

Method Detail

createVersion1Packet

public static SymmetricEncIntegrityPacket createVersion1Packet()

createVersion2Packet

public static SymmetricEncIntegrityPacket createVersion2Packet(int algorithm,
                                                               int aeadAlgorithm,
                                                               int chunkSize,
                                                               byte[] salt)

getVersion

public int getVersion()

getType

public int getType()

Description copied from interface: BCPGHeaderObject

Return the header type.

Specified by:

getType in interface BCPGHeaderObject

Following copied from interface: org.bouncycastle.bcpg.BCPGHeaderObject

Returns:

header type code

encode

public void encode(BCPGOutputStream bcpgOut)
            throws java.io.IOException

Specified by:

encode in interface BCPGHeaderObject

getCipherAlgorithm

public int getCipherAlgorithm()

Return the cipher algorithm. V2 SEIPD packet only.

Returns:

cipher algorithm

getAeadAlgorithm

public int getAeadAlgorithm()

Return the AEAD algorithm. V2 SEIPD packet only.

Returns:

AEAD algorithm

getChunkSize

public int getChunkSize()

Return the chunksize for the AEAD construction. V2 SEIPD packet only.

Returns:

chunksize

getAAData

public byte[] getAAData()

Return the AEAD additional authenticated data, which is also used as HKDF info. V2 SEIPD packet only.

Returns:

aadata

createAAData

public static byte[] createAAData(int version,
                                  int cipherAlgorithm,
                                  int aeadAlgorithm,
                                  int chunkSize)

getSalt

public byte[] getSalt()

Return the salt used to derive the message key. V2 SEIPD packet only.

Returns:

salt