Top Description Inners Fields Constructors Methods
org.bouncycastle.crypto.general

public final Class Twofish

extends Object
Class Inheritance
Imports
java.security.SecureRandom, org.bouncycastle.crypto.Algorithm, .IllegalKeyException, .ParametersWithIV, .SymmetricKey, .SymmetricSecretKey, org.bouncycastle.crypto.internal.BlockCipher, .BufferedBlockCipher, .KeyGenerationParameters, .Mac, .ValidatedSymmetricKey, .Wrapper, org.bouncycastle.crypto.internal.modes.AEADBlockCipher, org.bouncycastle.crypto.internal.params.KeyParameter, .KeyParameterImpl, org.bouncycastle.util.Arrays, org.bouncycastle.util.encoders.Hex

Source class for implementations of Twofish based algorithms.

Nested and Inner Type Summary

Modifier and TypeClass and Description
public static class
Twofish.AEADOperatorFactory

Factory for Twofish AEAD encryption/decryption operators.

public static class
Twofish.AuthParameters

Parameters for Twofish AEAD and MAC modes.

private static class
public static class
Twofish.KeyGenerator

Twofish key generator.

public static class
Twofish.KeyWrapOperatorFactory

Factory for Twofish key wrap/unwrap operators.

public static class
Twofish.MACOperatorFactory

Factory for producing Twofish MAC calculators.

public static class
Twofish.OperatorFactory

Factory for basic Twofish encryption/decryption operators.

public static class
Twofish.Parameters

Parameters for general Twofish block cipher modes.

public static class
Twofish.WrapParameters

General WRAP operator parameters for KW and KWP.

Field Summary

Modifier and TypeField and Description
public static final GeneralAlgorithm
ALGORITHM

Raw Twofish algorithm, can be used for creating general purpose Twofish keys.

public static final Twofish.Parameters
CBC

Twofish in cipher block chaining (CBC) mode.

public static final Twofish.Parameters
CBCwithCS1

Twofish in cipher block chaining mode cipher text stealing type 1.

public static final Twofish.Parameters
CBCwithCS2

Twofish in cipher block chaining mode cipher text stealing type 2.

public static final Twofish.Parameters
CBCwithCS3

Twofish in cipher block chaining mode cipher text stealing type 3.

public static final Twofish.Parameters
CBCwithISO10126_2

Twofish in cipher block chaining mode with ISO10126-2 padding.

public static final Twofish.Parameters
CBCwithISO7816_4

Twofish in cipher block chaining mode with ISO7816-4 padding.

public static final Twofish.Parameters
CBCwithPKCS7

Twofish in cipher block chaining mode with PKCS#7/PKCS#5 padding.

public static final Twofish.Parameters
CBCwithTBC

Twofish in cipher block chaining mode with trailing bit complement (TBC) padding.

public static final Twofish.Parameters
CBCwithX923

Twofish in cipher block chaining mode with X9.23 padding.

public static final Twofish.AuthParameters
CCM

Twofish in counter with CBC-MAC (CCM).

public static final Twofish.Parameters
CFB128

Twofish in cipher feedback (CFB) mode, 128 bit block size.

public static final Twofish.Parameters
CFB8

Twofish in cipher feedback (CFB) mode, 8 bit block size.

public static final Twofish.AuthParameters
CMAC

Twofish cipher-based MAC algorithm.

public static final Twofish.Parameters
CTR

Twofish in counter (CTR) mode.

public static final Twofish.AuthParameters
EAX

Twofish in EAX mode.

public static final Twofish.Parameters
ECB

Twofish in electronic code book (ECB) mode.

public static final Twofish.Parameters
ECBwithISO10126_2

Twofish in electronic code book mode with ISO10126-2 padding.

public static final Twofish.Parameters
ECBwithISO7816_4

Twofish in electronic code book mode with ISO7816-4 padding.

public static final Twofish.Parameters
ECBwithPKCS7

Twofish in electronic code book mode with PKCS#7/PKCS#5 padding.

public static final Twofish.Parameters
ECBwithTBC

Twofish in electronic code book mode with trailing bit complement (TBC) padding.

public static final Twofish.Parameters
ECBwithX923

Twofish in electronic code book mode with X9.23 padding.

private static final Twofish.EngineProvider
public static final Twofish.AuthParameters
GCM

Twofish in Galois/Counter Mode (GCM).

public static final Twofish.AuthParameters
GMAC

Twofish cipher-based GMAC algorithm.

public static final Twofish.WrapParameters
KW

Twofish as a FIPS/RFC 3394 key wrapper.

public static final Twofish.WrapParameters
KWP

Twofish as a FIPS/RFC 3394 key wrapper with padding.

public static final Twofish.AuthParameters
OCB

Twofish in offset code book (OCB) mode.

public static final Twofish.Parameters
OFB

Twofish in output feedback (OFB) mode.

public static final Twofish.Parameters
OpenPGPCFB

Twofish in OpenPGP cipher feedback (CFB) mode.

Constructor Summary

AccessConstructor and Description
private

Method Summary

Modifier and TypeMethod and Description
private static boolean
invalidKeySize(int keyLength)

private static ValidatedSymmetricKey
validateKey(SymmetricKey key, Algorithm paramAlgorithm)

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

ALGORITHMback to summary
public static final GeneralAlgorithm ALGORITHM

Raw Twofish algorithm, can be used for creating general purpose Twofish keys.

CBCback to summary
public static final Twofish.Parameters CBC

Twofish in cipher block chaining (CBC) mode.

CBCwithCS1back to summary
public static final Twofish.Parameters CBCwithCS1

Twofish in cipher block chaining mode cipher text stealing type 1.

CBCwithCS2back to summary
public static final Twofish.Parameters CBCwithCS2

Twofish in cipher block chaining mode cipher text stealing type 2.

CBCwithCS3back to summary
public static final Twofish.Parameters CBCwithCS3

Twofish in cipher block chaining mode cipher text stealing type 3.

CBCwithISO10126_2back to summary
public static final Twofish.Parameters CBCwithISO10126_2

Twofish in cipher block chaining mode with ISO10126-2 padding.

CBCwithISO7816_4back to summary
public static final Twofish.Parameters CBCwithISO7816_4

Twofish in cipher block chaining mode with ISO7816-4 padding.

CBCwithPKCS7back to summary
public static final Twofish.Parameters CBCwithPKCS7

Twofish in cipher block chaining mode with PKCS#7/PKCS#5 padding.

CBCwithTBCback to summary
public static final Twofish.Parameters CBCwithTBC

Twofish in cipher block chaining mode with trailing bit complement (TBC) padding.

CBCwithX923back to summary
public static final Twofish.Parameters CBCwithX923

Twofish in cipher block chaining mode with X9.23 padding.

CCMback to summary
public static final Twofish.AuthParameters CCM

Twofish in counter with CBC-MAC (CCM).

CFB128back to summary
public static final Twofish.Parameters CFB128

Twofish in cipher feedback (CFB) mode, 128 bit block size.

CFB8back to summary
public static final Twofish.Parameters CFB8

Twofish in cipher feedback (CFB) mode, 8 bit block size.

CMACback to summary
public static final Twofish.AuthParameters CMAC

Twofish cipher-based MAC algorithm.

CTRback to summary
public static final Twofish.Parameters CTR

Twofish in counter (CTR) mode.

EAXback to summary
public static final Twofish.AuthParameters EAX

Twofish in EAX mode.

ECBback to summary
public static final Twofish.Parameters ECB

Twofish in electronic code book (ECB) mode.

ECBwithISO10126_2back to summary
public static final Twofish.Parameters ECBwithISO10126_2

Twofish in electronic code book mode with ISO10126-2 padding.

ECBwithISO7816_4back to summary
public static final Twofish.Parameters ECBwithISO7816_4

Twofish in electronic code book mode with ISO7816-4 padding.

ECBwithPKCS7back to summary
public static final Twofish.Parameters ECBwithPKCS7

Twofish in electronic code book mode with PKCS#7/PKCS#5 padding.

ECBwithTBCback to summary
public static final Twofish.Parameters ECBwithTBC

Twofish in electronic code book mode with trailing bit complement (TBC) padding.

ECBwithX923back to summary
public static final Twofish.Parameters ECBwithX923

Twofish in electronic code book mode with X9.23 padding.

ENGINE_PROVIDERback to summary
private static final Twofish.EngineProvider ENGINE_PROVIDER
GCMback to summary
public static final Twofish.AuthParameters GCM

Twofish in Galois/Counter Mode (GCM).

GMACback to summary
public static final Twofish.AuthParameters GMAC

Twofish cipher-based GMAC algorithm.

KWback to summary
public static final Twofish.WrapParameters KW

Twofish as a FIPS/RFC 3394 key wrapper.

KWPback to summary
public static final Twofish.WrapParameters KWP

Twofish as a FIPS/RFC 3394 key wrapper with padding.

OCBback to summary
public static final Twofish.AuthParameters OCB

Twofish in offset code book (OCB) mode.

OFBback to summary
public static final Twofish.Parameters OFB

Twofish in output feedback (OFB) mode.

OpenPGPCFBback to summary
public static final Twofish.Parameters OpenPGPCFB

Twofish in OpenPGP cipher feedback (CFB) mode.

Constructor Detail

Twofishback to summary
private Twofish()

Method Detail

invalidKeySizeback to summary
private static boolean invalidKeySize(int keyLength)
validateKeyback to summary
private static ValidatedSymmetricKey validateKey(SymmetricKey key, Algorithm paramAlgorithm)
org.bouncycastle.crypto.general back to summary

public final Class Twofish.AEADOperatorFactory

extends GuardedAEADOperatorFactory<Twofish.AuthParameters>
Class Inheritance

Factory for Twofish AEAD encryption/decryption operators.

Constructor Summary

AccessConstructor and Description
public

Method Summary

Modifier and TypeMethod and Description
protected AEADBlockCipher
Inherited from org.bouncycastle.crypto.general.GuardedAEADOperatorFactory:
createInputAEADDecryptorcreateOutputAEADDecryptorcreateOutputAEADEncryptor

Constructor Detail

AEADOperatorFactoryback to summary
public AEADOperatorFactory()

Method Detail

createAEADCipherback to summary
protected AEADBlockCipher createAEADCipher(boolean forEncryption, SymmetricKey key, Twofish.AuthParameters parameters)

Implements abstract org.bouncycastle.crypto.general.GuardedAEADOperatorFactory.createAEADCipher.

Annotations
@Override
org.bouncycastle.crypto.general back to summary

public final Class Twofish.AuthParameters

extends GeneralAuthParameters<Twofish.AuthParameters>
Class Inheritance

Parameters for Twofish AEAD and MAC modes.

Field Summary

Inherited from org.bouncycastle.crypto.general.GeneralAuthParameters:
macLenInBits

Constructor Summary

AccessConstructor and Description
private
AuthParameters(GeneralAlgorithm algorithm, byte[] iv, int macLenInBits)

pack-priv
AuthParameters(GeneralAlgorithm
algorithm mode.
algorithm
)

Base constructor - the algorithm, null IV.

Method Summary

Modifier and TypeMethod and Description
protected Twofish.AuthParameters
create(GeneralAlgorithm algorithm, byte[] iv, int macSizeInBits)

Implements abstract org.bouncycastle.crypto.general.GeneralAuthParameters.create.

Inherited from org.bouncycastle.crypto.general.GeneralAuthParameters:
creategetMACSizeInBitswithIVwithMACSize

Constructor Detail

AuthParametersback to summary
private AuthParameters(GeneralAlgorithm algorithm, byte[] iv, int macLenInBits)
AuthParametersback to summary
pack-priv AuthParameters(GeneralAlgorithm algorithm)

Base constructor - the algorithm, null IV. In this case the tag length defaults to the 128 for GCM, CMAC, or GMAC, 64 bits otherwise.

Parameters
algorithm:GeneralAlgorithm

algorithm mode.

Method Detail

createback to summary
protected Twofish.AuthParameters create(GeneralAlgorithm algorithm, byte[] iv, int macSizeInBits)

Implements abstract org.bouncycastle.crypto.general.GeneralAuthParameters.create.

org.bouncycastle.crypto.general back to summary

private final Class Twofish.EngineProvider

extends Object
implements EngineProvider<BlockCipher>
Class Inheritance
All Implemented Interfaces
org.bouncycastle.crypto.internal.EngineProvider

Constructor Summary

AccessConstructor and Description
private

Method Summary

Modifier and TypeMethod and Description
public BlockCipher
Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Constructor Detail

EngineProviderback to summary
private EngineProvider()

Method Detail

createEngineback to summary
public BlockCipher createEngine()

Implements org.bouncycastle.crypto.internal.EngineProvider.createEngine.

org.bouncycastle.crypto.general back to summary

public final Class Twofish.KeyGenerator

extends GuardedSymmetricKeyGenerator
Class Inheritance

Twofish key generator.

Field Summary

Modifier and TypeField and Description
private final GeneralAlgorithm
private final int
private final SecureRandom

Constructor Summary

AccessConstructor and Description
public
KeyGenerator(int keySizeInBits, SecureRandom random)

public
KeyGenerator(GeneralParameters<T extends Algorithm> parameterSet, int keySizeInBits, SecureRandom random)

private
KeyGenerator(GeneralAlgorithm algorithm, int keySizeInBits, SecureRandom random)

Method Summary

Modifier and TypeMethod and Description
public SymmetricKey
Inherited from org.bouncycastle.crypto.general.GuardedSymmetricKeyGenerator:
generateKey

Field Detail

algorithmback to summary
private final GeneralAlgorithm algorithm
keySizeInBitsback to summary
private final int keySizeInBits
randomback to summary
private final SecureRandom random

Constructor Detail

KeyGeneratorback to summary
public KeyGenerator(int keySizeInBits, SecureRandom random)
KeyGeneratorback to summary
public KeyGenerator(GeneralParameters<T extends Algorithm> parameterSet, int keySizeInBits, SecureRandom random)
KeyGeneratorback to summary
private KeyGenerator(GeneralAlgorithm algorithm, int keySizeInBits, SecureRandom random)

Method Detail

doGenerateKeyback to summary
public SymmetricKey doGenerateKey()

Implements abstract org.bouncycastle.crypto.general.GuardedSymmetricKeyGenerator.doGenerateKey.

org.bouncycastle.crypto.general back to summary

public final Class Twofish.KeyWrapOperatorFactory

extends GuardedKeyWrapOperatorFactory<Twofish.WrapParameters, SymmetricKey>
Class Inheritance

Factory for Twofish key wrap/unwrap operators.

Constructor Summary

AccessConstructor and Description
public

Method Summary

Modifier and TypeMethod and Description
protected Wrapper
Inherited from org.bouncycastle.crypto.general.GuardedKeyWrapOperatorFactory:
createKeyUnwrappercreateKeyWrapper

Constructor Detail

KeyWrapOperatorFactoryback to summary
public KeyWrapOperatorFactory()

Method Detail

createWrapperback to summary
protected Wrapper createWrapper(boolean forWrapping, SymmetricKey key, Twofish.WrapParameters parameters, SecureRandom random)

Implements abstract org.bouncycastle.crypto.general.GuardedKeyWrapOperatorFactory.createWrapper.

org.bouncycastle.crypto.general back to summary

public final Class Twofish.MACOperatorFactory

extends GuardedMACOperatorFactory<Twofish.AuthParameters>
Class Inheritance

Factory for producing Twofish MAC calculators.

Constructor Summary

AccessConstructor and Description
public

Method Summary

Modifier and TypeMethod and Description
protected int
protected Mac
Inherited from org.bouncycastle.crypto.general.GuardedMACOperatorFactory:
createOutputMACCalculator

Constructor Detail

MACOperatorFactoryback to summary
public MACOperatorFactory()

Method Detail

calculateMACSizeback to summary
protected int calculateMACSize(Twofish.AuthParameters parameters)

Implements abstract org.bouncycastle.crypto.general.GuardedMACOperatorFactory.calculateMACSize.

Annotations
@Override
createMACback to summary
protected Mac createMAC(SymmetricKey key, final Twofish.AuthParameters parameters)

Implements abstract org.bouncycastle.crypto.general.GuardedMACOperatorFactory.createMAC.

Annotations
@Override
org.bouncycastle.crypto.general back to summary

public final Class Twofish.OperatorFactory

extends GuardedSymmetricOperatorFactory<Twofish.Parameters>
Class Inheritance

Factory for basic Twofish encryption/decryption operators.

Constructor Summary

AccessConstructor and Description
public

Method Summary

Modifier and TypeMethod and Description
protected BufferedBlockCipher
Inherited from org.bouncycastle.crypto.general.GuardedSymmetricOperatorFactory:
createInputDecryptorcreateOutputDecryptorcreateOutputEncryptor

Constructor Detail

OperatorFactoryback to summary
public OperatorFactory()

Method Detail

createCipherback to summary
protected BufferedBlockCipher createCipher(boolean forEncryption, SymmetricKey key, Twofish.Parameters parameters, SecureRandom random)

Implements abstract org.bouncycastle.crypto.general.GuardedSymmetricOperatorFactory.createCipher.

Annotations
@Override
org.bouncycastle.crypto.general back to summary

public final Class Twofish.Parameters

extends GeneralParametersWithIV<Twofish.Parameters>
Class Inheritance

Parameters for general Twofish block cipher modes.

Field Summary

Inherited from org.bouncycastle.crypto.general.GeneralParametersWithIV:
blockSizeiv

Constructor Summary

AccessConstructor and Description
private
Parameters(GeneralAlgorithm algorithm, byte[] iv)

pack-priv

Method Summary

Modifier and TypeMethod and Description
protected Twofish.Parameters
Inherited from org.bouncycastle.crypto.general.GeneralParametersWithIV:
getIVwithIVwithIV

Constructor Detail

Parametersback to summary
private Parameters(GeneralAlgorithm algorithm, byte[] iv)
Parametersback to summary
pack-priv Parameters(GeneralAlgorithm algorithm)

Method Detail

createback to summary
protected Twofish.Parameters create(GeneralAlgorithm algorithm, byte[] iv)

Implements abstract org.bouncycastle.crypto.general.GeneralParametersWithIV.create.

org.bouncycastle.crypto.general back to summary

public final Class Twofish.WrapParameters

extends GeneralParameters<GeneralAlgorithm>
implements ParametersWithIV
Class Inheritance
All Implemented Interfaces
org.bouncycastle.crypto.ParametersWithIV, org.bouncycastle.crypto.Parameters

General WRAP operator parameters for KW and KWP.

Field Summary

Modifier and TypeField and Description
private final byte[]
private final boolean

Constructor Summary

AccessConstructor and Description
pack-priv
private
WrapParameters(GeneralAlgorithm algorithm, byte[] iv, boolean useInverse)

Method Summary

Modifier and TypeMethod and Description
public byte[]
getIV()

Implements org.bouncycastle.crypto.ParametersWithIV.getIV.

Return the initialization vector associated with this parameter set.
private int
public boolean
public Twofish.WrapParameters
withIV(byte[]
the IV to use.
iv
)

Implements org.bouncycastle.crypto.ParametersWithIV.withIV.

Create a new parameter set with a different IV.
public Twofish.WrapParameters
withIV(SecureRandom
the SecureRandom to use as the source of IV data.
random
)

Implements org.bouncycastle.crypto.ParametersWithIV.withIV.

Create a new parameter set with a different IV based on the output of the passed in random.
public Twofish.WrapParameters
withUsingInverseFunction(boolean useInverse)

Inherited from org.bouncycastle.crypto.general.GeneralParameters:
getAlgorithm

Field Detail

ivback to summary
private final byte[] iv
useInverseback to summary
private final boolean useInverse

Constructor Detail

WrapParametersback to summary
pack-priv WrapParameters(GeneralAlgorithm algorithm)
WrapParametersback to summary
private WrapParameters(GeneralAlgorithm algorithm, byte[] iv, boolean useInverse)

Method Detail

getIVback to summary
public byte[] getIV()

Implements org.bouncycastle.crypto.ParametersWithIV.getIV.

Doc from org.bouncycastle.crypto.ParametersWithIV.getIV.

Return the initialization vector associated with this parameter set.

Returns:byte[]

the IV for these parameters.

getIvLengthback to summary
private int getIvLength()
isUsingInverseFunctionback to summary
public boolean isUsingInverseFunction()
withIVback to summary
public Twofish.WrapParameters withIV(byte[] iv)

Implements org.bouncycastle.crypto.ParametersWithIV.withIV.

Doc from org.bouncycastle.crypto.ParametersWithIV.withIV.

Create a new parameter set with a different IV.

Parameters
iv:byte[]

the IV to use.

Returns:Twofish.WrapParameters

a copy of the current parameter set with the new IV.

withIVback to summary
public Twofish.WrapParameters withIV(SecureRandom random)

Implements org.bouncycastle.crypto.ParametersWithIV.withIV.

Doc from org.bouncycastle.crypto.ParametersWithIV.withIV.

Create a new parameter set with a different IV based on the output of the passed in random.

Parameters
random:SecureRandom

the SecureRandom to use as the source of IV data.

Returns:Twofish.WrapParameters

a copy of the current parameter set with the new IV.

withUsingInverseFunctionback to summary
public Twofish.WrapParameters withUsingInverseFunction(boolean useInverse)