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

BcPBEKeyEncryptionMethodGenerator(char[] passPhrase)
Create a PBE encryption method generator using the default SHA-1 digest calculator for key calculation.

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 of 0x60 for key calculation.

BcPBEKeyEncryptionMethodGenerator(char[] passPhrase, PGPDigestCalculator s2kDigestCalculator)
Create a PBE encryption method generator using the provided calculator for key calculation.

BcPBEKeyEncryptionMethodGenerator(char[] passPhrase, PGPDigestCalculator s2kDigestCalculator, int s2kCount)
Create a PBE encryption method generator using the provided calculator and S2K count for key calculation.

Method Summary

protected byte[]	encryptSessionInfo(int encAlgorithm, byte[] key, byte[] sessionInfo)
PBEKeyEncryptionMethodGenerator	setSecureRandom(java.security.SecureRandom random) Provide a user defined source of randomness.

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

generate, getKey

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 calculator for key calculation.

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 calculator for key calculation.

Parameters:

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

BcPBEKeyEncryptionMethodGenerator

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

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

Parameters:

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

s2kDigestCalculator - the digest calculator to use for key calculation.

s2kCount - the 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 of 0x60 for key calculation.

Parameters:

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

s2kCount - the S2K count to use.

Method Detail

setSecureRandom

public PBEKeyEncryptionMethodGenerator setSecureRandom(java.security.SecureRandom random)

Provide a user defined source of randomness.

Overrides:

setSecureRandom in class PBEKeyEncryptionMethodGenerator

Parameters:

random - the secure random to be used.

Returns:

the current generator.

encryptSessionInfo

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

Specified by:

encryptSessionInfo in class PBEKeyEncryptionMethodGenerator

Throws:

PGPException