Package org.bouncycastle.openpgp.operator.bc

Class BcPBEKeyEncryptionMethodGenerator

java.lang.Object

org.bouncycastle.openpgp.operator.PGPKeyEncryptionMethodGenerator

org.bouncycastle.openpgp.operator.PBEKeyEncryptionMethodGenerator

org.bouncycastle.openpgp.operator.bc.BcPBEKeyEncryptionMethodGenerator

public class BcPBEKeyEncryptionMethodGenerator
extends PBEKeyEncryptionMethodGenerator

A BC lightweight method generator for supporting PBE based encryption operations.

Constructor Summary

Constructors

Constructor	Description
BcPBEKeyEncryptionMethodGenerator(char[] passPhrase)	Create a PBE encryption method generator using the default SHA-1 digest and the default S2K count for key generation.
BcPBEKeyEncryptionMethodGenerator(char[] passPhrase, int s2kCount)	Create a PBE encryption method generator using the default SHA-1 digest calculator and a S2K count other than the default for key generation.
BcPBEKeyEncryptionMethodGenerator(char[] passPhrase, S2K.Argon2Params argon2Params)	Create a PBE encryption method generator using Argon2 for S2K key generation.
BcPBEKeyEncryptionMethodGenerator(char[] passPhrase, PGPDigestCalculator s2kDigestCalculator)	Create a PBE encryption method generator using the provided digest and the default S2K count for key generation.
BcPBEKeyEncryptionMethodGenerator(char[] passPhrase, PGPDigestCalculator s2kDigestCalculator, int s2kCount)	Create a PBE encryption method generator using the provided calculator and S2K count for key generation.

Method Summary

Modifier and Type	Method	Description
protected byte[]	encryptSessionInfo(int encAlgorithm, byte[] key, byte[] sessionInfo)
protected byte[]	generateV6KEK(int kekAlgorithm, byte[] ikm, byte[] info)
protected byte[]	getEskAndTag(int kekAlgorithm, int aeadAlgorithm, byte[] sessionInfo, byte[] key, byte[] iv, byte[] info)
PBEKeyEncryptionMethodGenerator	setSecureRandom(java.security.SecureRandom random)	Sets a user defined source of randomness.

Methods inherited from class org.bouncycastle.openpgp.operator.PBEKeyEncryptionMethodGenerator

generate, generateV5, generateV6, getKey, getSessionKeyWrapperAlgorithm, setSessionKeyWrapperAlgorithm

Methods inherited from class java.lang.Object

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

Constructor Detail

BcPBEKeyEncryptionMethodGenerator

public BcPBEKeyEncryptionMethodGenerator(char[] passPhrase,
                                         PGPDigestCalculator s2kDigestCalculator)

Create a PBE encryption method generator using the provided digest and the default S2K count for key generation.

Parameters:

passPhrase - the passphrase to use as the primary source of key material.

s2kDigestCalculator - the digest calculator to use for key calculation.

BcPBEKeyEncryptionMethodGenerator

public BcPBEKeyEncryptionMethodGenerator(char[] passPhrase)

Create a PBE encryption method generator using the default SHA-1 digest and the default S2K count for key generation.

Parameters:

passPhrase - the passphrase to use as the primary source of key material.

BcPBEKeyEncryptionMethodGenerator

public BcPBEKeyEncryptionMethodGenerator(char[] passPhrase,
                                         S2K.Argon2Params argon2Params)

Create a PBE encryption method generator using Argon2 for S2K key generation.

Parameters:

passPhrase - passphrase

argon2Params - parameters for argon2

BcPBEKeyEncryptionMethodGenerator

public BcPBEKeyEncryptionMethodGenerator(char[] passPhrase,
                                         PGPDigestCalculator s2kDigestCalculator,
                                         int s2kCount)

Create a PBE encryption method generator using the provided calculator and S2K count for key generation.

Parameters:

passPhrase - the passphrase to use as the primary source of key material.

s2kDigestCalculator - the digest calculator to use for key calculation.

s2kCount - the single byte S2K count to use.

BcPBEKeyEncryptionMethodGenerator

public BcPBEKeyEncryptionMethodGenerator(char[] passPhrase,
                                         int s2kCount)

Create a PBE encryption method generator using the default SHA-1 digest calculator and a S2K count other than the default for key generation.

Parameters:

passPhrase - the passphrase to use as the primary source of key material.

s2kCount - the single byte S2K count to use.

Method Detail

setSecureRandom

public PBEKeyEncryptionMethodGenerator setSecureRandom(java.security.SecureRandom random)

Description copied from class: PBEKeyEncryptionMethodGenerator

Sets a user defined source of randomness.

If no SecureRandom is configured, a default SecureRandom will be used.

Overrides:

setSecureRandom in class PBEKeyEncryptionMethodGenerator

Returns:

the current generator.

encryptSessionInfo

protected byte[] encryptSessionInfo(int encAlgorithm,
                                    byte[] key,
                                    byte[] sessionInfo)
                             throws PGPException

Specified by:

encryptSessionInfo in class PBEKeyEncryptionMethodGenerator

Throws:

PGPException

generateV6KEK

protected byte[] generateV6KEK(int kekAlgorithm,
                               byte[] ikm,
                               byte[] info)

Specified by:

generateV6KEK in class PBEKeyEncryptionMethodGenerator

getEskAndTag

protected byte[] getEskAndTag(int kekAlgorithm,
                              int aeadAlgorithm,
                              byte[] sessionInfo,
                              byte[] key,
                              byte[] iv,
                              byte[] info)
                       throws PGPException

Specified by:

getEskAndTag in class PBEKeyEncryptionMethodGenerator

Throws:

PGPException