org.bouncycastle.openpgp.operator

Class PublicKeyKeyEncryptionMethodGenerator

java.lang.Object

org.bouncycastle.openpgp.operator.PGPKeyEncryptionMethodGenerator

org.bouncycastle.openpgp.operator.PublicKeyKeyEncryptionMethodGenerator

Direct Known Subclasses:

BcPublicKeyKeyEncryptionMethodGenerator, JcePublicKeyKeyEncryptionMethodGenerator

public abstract class PublicKeyKeyEncryptionMethodGenerator
extends PGPKeyEncryptionMethodGenerator

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	SESSION_KEY_OBFUSCATION_PROPERTY
protected boolean	sessionKeyObfuscation
protected boolean	useWildcardKeyID
static long	WILDCARD

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PublicKeyKeyEncryptionMethodGenerator(PGPPublicKey pubKey)

Method Summary

Modifier and Type	Method and Description
protected abstract byte[]	encryptSessionInfo(PGPPublicKey pubKey, byte[] sessionInfo)
ContainedPacket	generate(int encAlgorithm, byte[] sessionInfo) Generates a packet encoding the details of this encryption method.
ContainedPacket	generateV5(int encAlgorithm, int aeadAlgorithm, byte[] sessionInfo)
ContainedPacket	generateV6(int encAlgorithm, int aeadAlgorithm, byte[] sessionInfo)
protected static byte[]	getSessionInfo(byte[] ephPubEncoding, byte[] c)
protected static byte[]	getSessionInfo(byte[] VB, int sysmmetricKeyAlgorithm, byte[] c)
byte[][]	processSessionInfo(byte[] encryptedSessionInfo)
PublicKeyKeyEncryptionMethodGenerator	setSessionKeyObfuscation(boolean enabled) Controls whether to obfuscate the size of ECDH session keys using extra padding where necessary.
PublicKeyKeyEncryptionMethodGenerator	setUseWildcardKeyID(boolean enabled) Controls whether the recipient key ID is hidden (replaced by a wildcard ID

Methods inherited from class java.lang.Object

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

Field Detail

SESSION_KEY_OBFUSCATION_PROPERTY

public static final java.lang.String SESSION_KEY_OBFUSCATION_PROPERTY

See Also:

Constant Field Values

WILDCARD

public static final long WILDCARD

See Also:

Constant Field Values

sessionKeyObfuscation

protected boolean sessionKeyObfuscation

useWildcardKeyID

protected boolean useWildcardKeyID

Constructor Detail

PublicKeyKeyEncryptionMethodGenerator

protected PublicKeyKeyEncryptionMethodGenerator(PGPPublicKey pubKey)

Method Detail

setSessionKeyObfuscation

public PublicKeyKeyEncryptionMethodGenerator setSessionKeyObfuscation(boolean enabled)

Controls whether to obfuscate the size of ECDH session keys using extra padding where necessary.

The default behaviour can be configured using the system property "", or else it will default to enabled.

Returns:

the current generator.

setUseWildcardKeyID

public PublicKeyKeyEncryptionMethodGenerator setUseWildcardKeyID(boolean enabled)

Controls whether the recipient key ID is hidden (replaced by a wildcard ID

0

).

Parameters:

enabled - boolean

Returns:

this

processSessionInfo

public byte[][] processSessionInfo(byte[] encryptedSessionInfo)
                            throws PGPException

Throws:

PGPException

generate

public ContainedPacket generate(int encAlgorithm,
                                byte[] sessionInfo)
                         throws PGPException

Description copied from class: PGPKeyEncryptionMethodGenerator

Generates a packet encoding the details of this encryption method.

Specified by:

generate in class PGPKeyEncryptionMethodGenerator

Parameters:

encAlgorithm - the encryption algorithm being used

sessionInfo - session data generated by the encrypted data generator.

Returns:

a packet encoding the provided information and the configuration of this instance.

Throws:

PGPException - if an error occurs constructing the packet.

generateV5

public ContainedPacket generateV5(int encAlgorithm,
                                  int aeadAlgorithm,
                                  byte[] sessionInfo)
                           throws PGPException

Specified by:

generateV5 in class PGPKeyEncryptionMethodGenerator

Throws:

PGPException

generateV6

public ContainedPacket generateV6(int encAlgorithm,
                                  int aeadAlgorithm,
                                  byte[] sessionInfo)
                           throws PGPException

Specified by:

generateV6 in class PGPKeyEncryptionMethodGenerator

Throws:

PGPException

encryptSessionInfo

protected abstract byte[] encryptSessionInfo(PGPPublicKey pubKey,
                                             byte[] sessionInfo)
                                      throws PGPException

Throws:

PGPException

getSessionInfo

protected static byte[] getSessionInfo(byte[] ephPubEncoding,
                                       byte[] c)
                                throws java.io.IOException

Throws:

java.io.IOException

getSessionInfo

protected static byte[] getSessionInfo(byte[] VB,
                                       int sysmmetricKeyAlgorithm,
                                       byte[] c)