Package org.bouncycastle.bcpg

Class SymmetricKeyEncSessionPacket

java.lang.Object

org.bouncycastle.bcpg.Packet

org.bouncycastle.bcpg.ContainedPacket

org.bouncycastle.bcpg.SymmetricKeyEncSessionPacket

All Implemented Interfaces:

PacketTags, org.bouncycastle.util.Encodable

public class SymmetricKeyEncSessionPacket
extends ContainedPacket

Basic type for a symmetric encrypted session key packet

Field Summary

Fields

Modifier and Type	Field	Description
static final int	VERSION_4	Version 4 SKESK packet.
static final int	VERSION_5	Version 5 SKESK packet.
static final int	VERSION_6	Version 6 SKESK 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

Constructors

Constructor	Description
SymmetricKeyEncSessionPacket(int encAlgorithm, S2K s2k, byte[] secKeyData)	Deprecated. use createVersion4Packet()
SymmetricKeyEncSessionPacket(BCPGInputStream in)
SymmetricKeyEncSessionPacket(BCPGInputStream in, boolean newPacketFormat)

Method Summary

Modifier and Type	Method	Description
static byte[]	createAAData(int version, int encAlgorithm, int aeadAlgorithm)
static SymmetricKeyEncSessionPacket	createV4Packet(int encAlgorithm, S2K s2k, byte[] secKeyData)	Create a v4 SKESK packet.
static SymmetricKeyEncSessionPacket	createV5Packet(int encAlgorithm, int aeadAlgorithm, byte[] iv, S2K s2k, byte[] secKeyData, byte[] authTag)	Create a v5 SKESK packet.
static SymmetricKeyEncSessionPacket	createV6Packet(int encAlgorithm, int aeadAlgorithm, byte[] iv, S2K s2k, byte[] secKeyData, byte[] authTag)	Create a v6 SKESK packet.
void	encode(BCPGOutputStream out)
byte[]	getAAData()
int	getAeadAlgorithm()	Return the AEAD algorithm tag.
byte[]	getAuthTag()	Return the authentication tag for the AEAD mode.
int	getEncAlgorithm()
byte[]	getIv()	Return the IV for the AEAD mode.
S2K	getS2K()
byte[]	getSecKeyData()
int	getVersion()

Methods inherited from class org.bouncycastle.bcpg.ContainedPacket

getEncoded, getEncoded

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 Details

VERSION_4

public static final int VERSION_4

Version 4 SKESK packet. Used only with V1 SEIPD or SED packets.

See Also:

• Constant Field Values

VERSION_5

public static final int VERSION_5

Version 5 SKESK packet. LibrePGP only. Used only with AED packets.

See Also:

• Constant Field Values

VERSION_6

public static final int VERSION_6

Version 6 SKESK packet. Used only with V2 SEIPD packets.

See Also:

• Constant Field Values

Constructor Details

SymmetricKeyEncSessionPacket

public SymmetricKeyEncSessionPacket(BCPGInputStream in)
                             throws IOException

Throws:

IOException

SymmetricKeyEncSessionPacket

public SymmetricKeyEncSessionPacket(BCPGInputStream in,
 boolean newPacketFormat)
                             throws IOException

Throws:

IOException

SymmetricKeyEncSessionPacket

public SymmetricKeyEncSessionPacket(int encAlgorithm,
 S2K s2k,
 byte[] secKeyData)

Deprecated.

use createVersion4Packet()

Create a v4 SKESK packet.

Parameters:

encAlgorithm - symmetric encryption algorithm

s2k - s2k

secKeyData - encrypted session key

Method Details

createV4Packet

public static SymmetricKeyEncSessionPacket createV4Packet(int encAlgorithm,
 S2K s2k,
 byte[] secKeyData)

Create a v4 SKESK packet.

Parameters:

encAlgorithm - symmetric encryption algorithm

s2k - s2k specifier

secKeyData - encrypted session key

createV5Packet

public static SymmetricKeyEncSessionPacket createV5Packet(int encAlgorithm,
 int aeadAlgorithm,
 byte[] iv,
 S2K s2k,
 byte[] secKeyData,
 byte[] authTag)

Create a v5 SKESK packet.

Parameters:

encAlgorithm - symmetric encryption algorithm

aeadAlgorithm - aead algorithm

iv - initialization vector

s2k - s2k specifier

secKeyData - encrypted session key

authTag - authentication tag

createV6Packet

public static SymmetricKeyEncSessionPacket createV6Packet(int encAlgorithm,
 int aeadAlgorithm,
 byte[] iv,
 S2K s2k,
 byte[] secKeyData,
 byte[] authTag)

Create a v6 SKESK packet.

Parameters:

encAlgorithm - symmetric encryption algorithm

aeadAlgorithm - aead algorithm

iv - initialization vector

s2k - s2k specifier

secKeyData - encrypted session key

authTag - authentication tag

getEncAlgorithm

public int getEncAlgorithm()

Returns:

int

getS2K

public S2K getS2K()

Returns:

S2K

getSecKeyData

public byte[] getSecKeyData()

Returns:

byte[]

getVersion

public int getVersion()

Returns:

int

getAeadAlgorithm

public int getAeadAlgorithm()

Return the AEAD algorithm tag. V5 packet only.

Returns:

aead algorithm

getIv

public byte[] getIv()

Return the IV for the AEAD mode. This is also called nonce. V5 packet only.

Returns:

iv

getAuthTag

public byte[] getAuthTag()

Return the authentication tag for the AEAD mode. V5 packet only.

Returns:

AEAD auth tag

getAAData

public byte[] getAAData()

createAAData

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

encode

public void encode(BCPGOutputStream out)
            throws IOException

Specified by:

encode in class ContainedPacket

Throws:

IOException