Nested and Inner Type Summary

Modifier and Type	Class and Description
public static class	ElGamal.KeyGenParameters ElGamal key pair generation parameters.
public static class	ElGamal.KeyPairGenerator ElGamal key pair generator class.
public static class	ElGamal.KeyWrapOperatorFactory Factory for creating ElGamal key wrap/unwrap operators.
public static class	ElGamal.OAEPParameters Parameters for use with OAEP formatted key wrapping/unwrapping and encryption/decryption.
public static class	ElGamal.OperatorFactory Factory for creating ElGamal encryption/decryption operators.
public static class	ElGamal.Parameters Base class for ElGamal encryption/decryption and key wrap/unwrap parameters.
public static class	ElGamal.PKCS1v15Parameters Parameters for use with PKCS#1 v1.5 formatted key wrapping/unwrapping and encryption/decryption.
public static class	ElGamal.RawParameters Parameters for use with unformatted encryption/decryption.
private static enum	ElGamal.Variations
public static interface	ElGamal.WrapParameters Marker interface for parameters that can also be used for key wrapping.

Field Summary

Modifier and Type	Field and Description
public static final GeneralAlgorithm	ALGORITHM Basic ElGamal key marker, can be used for creating general purpose ElGamal keys.
private static final GeneralAlgorithm	ALGORITHM_OAEP
private static final GeneralAlgorithm	PKCS1v1_5
public static final ElGamal.RawParameters	RAW RAW ElGamal algorithm parameter source.
public static final ElGamal.OAEPParameters	WRAP_OAEP PKCS#1 v1.5 ElGamal algorithm parameter source.
public static final ElGamal.PKCS1v15Parameters	WRAP_PKCS1v1_5 OAEP ElGamal algorithm parameter source - default digest is SHA-1

Access	Constructor and Description
private	ElGamal()

Method Summary

Modifier and Type	Method and Description
private static AsymmetricBlockCipher	createCipher(boolean forEncryption, AsymmetricKey key, ElGamal.Parameters parameters, SecureRandom random)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

ALGORITHM	back to summary
public static final GeneralAlgorithm ALGORITHM Basic ElGamal key marker, can be used for creating general purpose ElGamal keys.

ALGORITHM_OAEP	back to summary
private static final GeneralAlgorithm ALGORITHM_OAEP

PKCS1v1_5	back to summary
private static final GeneralAlgorithm PKCS1v1_5

RAW	back to summary
public static final ElGamal.RawParameters RAW RAW ElGamal algorithm parameter source.

WRAP_OAEP	back to summary
public static final ElGamal.OAEPParameters WRAP_OAEP PKCS#1 v1.5 ElGamal algorithm parameter source.

WRAP_PKCS1v1_5	back to summary
public static final ElGamal.PKCS1v15Parameters WRAP_PKCS1v1_5 OAEP ElGamal algorithm parameter source - default digest is SHA-1

ElGamal	back to summary
private ElGamal()

createCipher	back to summary
private static AsymmetricBlockCipher createCipher(boolean forEncryption, AsymmetricKey key, ElGamal.Parameters parameters, SecureRandom random)

org.bouncycastle.crypto.general back to summary

public final Class ElGamal.KeyGenParameters

Class Inheritance

extends GeneralParameters

java.lang.Object
org.bouncycastle.crypto.general.GeneralParameters
org.bouncycastle.crypto.general.ElGamal.KeyGenParameters

ElGamal key pair generation parameters.

Field Summary

Modifier and Type	Field and Description
private DHDomainParameters	domainParameters

Constructor Summary

Access	Constructor and Description
public	KeyGenParameters(DHDomainParameters the DH domain parameters. domainParameters) Base constructor for specific domain parameters.
public	KeyGenParameters(ElGamal.Parameters the particular parameter set to generate keys for. parameters, DHDomainParameters DH domain parameters representing the curve any generated keys will be for. domainParameters) Constructor for specifying the ElGamal algorithm explicitly.

Method Summary

Modifier and Type	Method and Description
public DHDomainParameters	getDomainParameters()

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

Field Detail

domainParameters	back to summary
private DHDomainParameters domainParameters

Constructor Detail

KeyGenParameters	back to summary
public KeyGenParameters(DHDomainParameters domainParameters) Base constructor for specific domain parameters. Parameters domainParameters:DHDomainParameters the DH domain parameters.

KeyGenParameters

back to summary

public KeyGenParameters(DHDomainParameters domainParameters)

Base constructor for specific domain parameters.

Parameters

domainParameters:DHDomainParameters: the DH domain parameters.

KeyGenParameters	back to summary
public KeyGenParameters(ElGamal.Parameters parameters, DHDomainParameters domainParameters) Constructor for specifying the ElGamal algorithm explicitly. Parameters parameters:ElGamal.Parameters the particular parameter set to generate keys for. domainParameters:DHDomainParameters DH domain parameters representing the curve any generated keys will be for.

KeyGenParameters

back to summary

public KeyGenParameters(ElGamal.Parameters parameters, DHDomainParameters domainParameters)

Constructor for specifying the ElGamal algorithm explicitly.

Parameters

parameters:ElGamal.Parameters: the particular parameter set to generate keys for.
domainParameters:DHDomainParameters: DH domain parameters representing the curve any generated keys will be for.

Method Detail

getDomainParameters	back to summary
public DHDomainParameters getDomainParameters()

org.bouncycastle.crypto.general back to summary

public final Class ElGamal.KeyPairGenerator

Class Inheritance

extends GuardedAsymmetricKeyPairGenerator<ElGamal.KeyGenParameters, AsymmetricDHPublicKey, AsymmetricDHPrivateKey>

java.lang.Object
org.bouncycastle.crypto.general.GuardedAsymmetricKeyPairGenerator
org.bouncycastle.crypto.general.ElGamal.KeyPairGenerator

ElGamal key pair generator class.

Field Summary

Modifier and Type	Field and Description
private final FipsDH.KeyPairGenerator	kpGen

Constructor Summary

Access	Constructor and Description
public	KeyPairGenerator(ElGamal.KeyGenParameters keyGenParameters, SecureRandom random)

Method Summary

Modifier and Type	Method and Description
protected AsymmetricKeyPair<AsymmetricDHPublicKey, AsymmetricDHPrivateKey>	doGenerateKeyPair() Implements abstract org.bouncycastle.crypto.general.GuardedAsymmetricKeyPairGenerator.doGenerateKeyPair.

Inherited from org.bouncycastle.crypto.general.GuardedAsymmetricKeyPairGenerator:: generateKeyPair getParameters

Field Detail

kpGen	back to summary
private final FipsDH.KeyPairGenerator kpGen

Constructor Detail

KeyPairGenerator	back to summary
public KeyPairGenerator(ElGamal.KeyGenParameters keyGenParameters, SecureRandom random)

Method Detail

doGenerateKeyPair	back to summary
protected AsymmetricKeyPair<AsymmetricDHPublicKey, AsymmetricDHPrivateKey> doGenerateKeyPair() Implements abstract org.bouncycastle.crypto.general.GuardedAsymmetricKeyPairGenerator.doGenerateKeyPair. Annotations @Override

doGenerateKeyPair

back to summary

protected AsymmetricKeyPair<AsymmetricDHPublicKey, AsymmetricDHPrivateKey> doGenerateKeyPair()

Implements abstract org.bouncycastle.crypto.general.GuardedAsymmetricKeyPairGenerator.doGenerateKeyPair.

Annotations

@Override

org.bouncycastle.crypto.general back to summary

public final Class ElGamal.KeyWrapOperatorFactory

Class Inheritance

extends Object
implements KeyWrapOperatorFactory<ElGamal.WrapParameters, AsymmetricDHKey>

java.lang.Object
org.bouncycastle.crypto.general.ElGamal.KeyWrapOperatorFactory

All Implemented Interfaces

org.bouncycastle.crypto.KeyWrapOperatorFactory

Factory for creating ElGamal key wrap/unwrap operators.

Nested and Inner Type Summary

Modifier and Type	Class and Description
private class	ElGamal.KeyWrapOperatorFactory.KeyUnwrapper
private class	ElGamal.KeyWrapOperatorFactory.KeyWrapper

Constructor Summary

Access	Constructor and Description
public	KeyWrapOperatorFactory()

Method Summary

Modifier and Type	Method and Description
public KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters>	createKeyUnwrapper(AsymmetricDHKey the key to initialize the un-wrapper with. key, ElGamal.WrapParameters the parameters to initialize the un-wrapper with. parameters) Implements org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyUnwrapper. Create a key un-wrapper using the passed in key and parameters.
public KeyWrapperUsingSecureRandom<ElGamal.WrapParameters>	createKeyWrapper(AsymmetricDHKey the key to initialize the wrapper with. key, ElGamal.WrapParameters the parameters to initialize the wrapper with. parameters) Implements org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyWrapper. Create a key wrapper using the passed in key and parameters.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Constructor Detail

KeyWrapOperatorFactory	back to summary
public KeyWrapOperatorFactory()

Method Detail

createKeyUnwrapper	back to summary
public KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters> createKeyUnwrapper(AsymmetricDHKey key, ElGamal.WrapParameters parameters) Implements org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyUnwrapper. Doc from org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyUnwrapper. Create a key un-wrapper using the passed in key and parameters. Parameters key:AsymmetricDHKey the key to initialize the un-wrapper with. parameters:ElGamal.WrapParameters the parameters to initialize the un-wrapper with. Returns:KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters> an initialized key un-wrapper.

createKeyUnwrapper

back to summary

public KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters> createKeyUnwrapper(AsymmetricDHKey key, ElGamal.WrapParameters parameters)

Implements org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyUnwrapper.

Doc from org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyUnwrapper.

Create a key un-wrapper using the passed in key and parameters.

Parameters

key:AsymmetricDHKey: the key to initialize the un-wrapper with.
parameters:ElGamal.WrapParameters: the parameters to initialize the un-wrapper with.

Returns:KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters>

an initialized key un-wrapper.

createKeyWrapper	back to summary
public KeyWrapperUsingSecureRandom<ElGamal.WrapParameters> createKeyWrapper(AsymmetricDHKey key, ElGamal.WrapParameters parameters) Implements org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyWrapper. Doc from org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyWrapper. Create a key wrapper using the passed in key and parameters. Parameters key:AsymmetricDHKey the key to initialize the wrapper with. parameters:ElGamal.WrapParameters the parameters to initialize the wrapper with. Returns:KeyWrapperUsingSecureRandom<ElGamal.WrapParameters> an initialized key wrapper.

createKeyWrapper

back to summary

public KeyWrapperUsingSecureRandom<ElGamal.WrapParameters> createKeyWrapper(AsymmetricDHKey key, ElGamal.WrapParameters parameters)

Implements org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyWrapper.

Doc from org.bouncycastle.crypto.KeyWrapOperatorFactory.createKeyWrapper.

Create a key wrapper using the passed in key and parameters.

Parameters

key:AsymmetricDHKey: the key to initialize the wrapper with.
parameters:ElGamal.WrapParameters: the parameters to initialize the wrapper with.

Returns:KeyWrapperUsingSecureRandom<ElGamal.WrapParameters>

an initialized key wrapper.

org.bouncycastle.crypto.general back to summary

private Class ElGamal.KeyWrapOperatorFactory.KeyUnwrapper

Class Inheritance

extends Object
implements KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters>

java.lang.Object
org.bouncycastle.crypto.general.ElGamal.KeyWrapOperatorFactory.KeyUnwrapper

All Implemented Interfaces

org.bouncycastle.crypto.KeyUnwrapperUsingSecureRandom, org.bouncycastle.crypto.OperatorUsingSecureRandom, org.bouncycastle.crypto.KeyUnwrapper

Field Summary

Modifier and Type	Field and Description
private final AsymmetricDHKey	key
private final AsymmetricBlockCipher	keyWrapper
private final ElGamal.WrapParameters	parameters

Constructor Summary

Access	Constructor and Description
public	KeyUnwrapper(AsymmetricDHKey key, ElGamal.WrapParameters parameters, SecureRandom random)

Method Summary

Modifier and Type	Method and Description
public ElGamal.WrapParameters	getParameters() Implements org.bouncycastle.crypto.KeyUnwrapper.getParameters. Return the parameters for this un-wrapper.
public byte[]	unwrap(byte[] input data array. in, int offset into data array wrapped key starts at. inOff, int length of wrapped key data. inLen) Implements org.bouncycastle.crypto.KeyUnwrapper.unwrap. Return the unwrapped byte encoding of a key.
public KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters>	withSecureRandom(SecureRandom the SecureRandom to use. random) Implements org.bouncycastle.crypto.KeyUnwrapperUsingSecureRandom.withSecureRandom. Return a variant of this signer using the passed in random as its source of randomness.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

key	back to summary
private final AsymmetricDHKey key

keyWrapper	back to summary
private final AsymmetricBlockCipher keyWrapper

parameters	back to summary
private final ElGamal.WrapParameters parameters

Constructor Detail

KeyUnwrapper	back to summary
public KeyUnwrapper(AsymmetricDHKey key, ElGamal.WrapParameters parameters, SecureRandom random)

Method Detail

getParameters	back to summary
public ElGamal.WrapParameters getParameters() Implements org.bouncycastle.crypto.KeyUnwrapper.getParameters. Doc from org.bouncycastle.crypto.KeyUnwrapper.getParameters. Return the parameters for this un-wrapper. Returns:ElGamal.WrapParameters the un-wrapper's parameters.

getParameters

back to summary

public ElGamal.WrapParameters getParameters()

Implements org.bouncycastle.crypto.KeyUnwrapper.getParameters.

Doc from org.bouncycastle.crypto.KeyUnwrapper.getParameters.

Return the parameters for this un-wrapper.

Returns:ElGamal.WrapParameters: the un-wrapper's parameters.

unwrap	back to summary
public byte[] unwrap(byte[] in, int inOff, int inLen) throws InvalidWrappingException Implements org.bouncycastle.crypto.KeyUnwrapper.unwrap. Doc from org.bouncycastle.crypto.KeyUnwrapper.unwrap. Return the unwrapped byte encoding of a key. Parameters in:byte[] input data array. inOff:int offset into data array wrapped key starts at. inLen:int length of wrapped key data. Returns:byte[] the unwrapped byte encoding of the key. Exceptions InvalidWrappingException: if the wrapping cannot be processed.

unwrap

back to summary

public byte[] unwrap(byte[] in, int inOff, int inLen) throws InvalidWrappingException

Implements org.bouncycastle.crypto.KeyUnwrapper.unwrap.

Doc from org.bouncycastle.crypto.KeyUnwrapper.unwrap.

Return the unwrapped byte encoding of a key.

Parameters

in:byte[]: input data array.
inOff:int: offset into data array wrapped key starts at.
inLen:int: length of wrapped key data.

Returns:byte[]

the unwrapped byte encoding of the key.

Exceptions

InvalidWrappingException:: if the wrapping cannot be processed.

withSecureRandom	back to summary
public KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters> withSecureRandom(SecureRandom random) Implements org.bouncycastle.crypto.KeyUnwrapperUsingSecureRandom.withSecureRandom. Doc from org.bouncycastle.crypto.KeyUnwrapperUsingSecureRandom.withSecureRandom. Return a variant of this signer using the passed in random as its source of randomness. Parameters random:SecureRandom the SecureRandom to use. Returns:KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters> a signer which will use random where random data is required.

withSecureRandom

back to summary

public KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters> withSecureRandom(SecureRandom random)

Implements org.bouncycastle.crypto.KeyUnwrapperUsingSecureRandom.withSecureRandom.

Doc from org.bouncycastle.crypto.KeyUnwrapperUsingSecureRandom.withSecureRandom.

Return a variant of this signer using the passed in random as its source of randomness.

Parameters

random:SecureRandom: the SecureRandom to use.

Returns:KeyUnwrapperUsingSecureRandom<ElGamal.WrapParameters>

a signer which will use random where random data is required.

org.bouncycastle.crypto.general back to summary

private Class ElGamal.KeyWrapOperatorFactory.KeyWrapper

Class Inheritance

extends Object
implements KeyWrapperUsingSecureRandom<ElGamal.WrapParameters>

java.lang.Object
org.bouncycastle.crypto.general.ElGamal.KeyWrapOperatorFactory.KeyWrapper

All Implemented Interfaces

org.bouncycastle.crypto.KeyWrapperUsingSecureRandom, org.bouncycastle.crypto.OperatorUsingSecureRandom, org.bouncycastle.crypto.KeyWrapper

Field Summary

Modifier and Type	Field and Description
private final AsymmetricDHKey	key
private final AsymmetricBlockCipher	keyWrapper
private final ElGamal.WrapParameters	parameters

Constructor Summary

Access	Constructor and Description
public	KeyWrapper(AsymmetricDHKey key, ElGamal.WrapParameters parameters, SecureRandom random)

Method Summary

Modifier and Type	Method and Description
public ElGamal.WrapParameters	getParameters() Implements org.bouncycastle.crypto.KeyWrapper.getParameters. Return the parameters for this wrapper.
public KeyWrapperUsingSecureRandom<ElGamal.WrapParameters>	withSecureRandom(SecureRandom the SecureRandom to use. random) Implements org.bouncycastle.crypto.KeyWrapperUsingSecureRandom.withSecureRandom. Return a variant of this signer using the passed in random as its source of randomness.
public byte[]	wrap(byte[] input data array. in, int offset into data array key data starts at. inOff, int length of key data. inLen) Implements org.bouncycastle.crypto.KeyWrapper.wrap. Return the wrapped version of a key byte encoding.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

key	back to summary
private final AsymmetricDHKey key

keyWrapper	back to summary
private final AsymmetricBlockCipher keyWrapper

parameters	back to summary
private final ElGamal.WrapParameters parameters

Constructor Detail

KeyWrapper	back to summary
public KeyWrapper(AsymmetricDHKey key, ElGamal.WrapParameters parameters, SecureRandom random)

Method Detail

getParameters	back to summary
public ElGamal.WrapParameters getParameters() Implements org.bouncycastle.crypto.KeyWrapper.getParameters. Doc from org.bouncycastle.crypto.KeyWrapper.getParameters. Return the parameters for this wrapper. Returns:ElGamal.WrapParameters the wrapper's parameters.

getParameters

back to summary

public ElGamal.WrapParameters getParameters()

Implements org.bouncycastle.crypto.KeyWrapper.getParameters.

Doc from org.bouncycastle.crypto.KeyWrapper.getParameters.

Return the parameters for this wrapper.

Returns:ElGamal.WrapParameters: the wrapper's parameters.

withSecureRandom	back to summary
public KeyWrapperUsingSecureRandom<ElGamal.WrapParameters> withSecureRandom(SecureRandom random) Implements org.bouncycastle.crypto.KeyWrapperUsingSecureRandom.withSecureRandom. Doc from org.bouncycastle.crypto.KeyWrapperUsingSecureRandom.withSecureRandom. Return a variant of this signer using the passed in random as its source of randomness. Parameters random:SecureRandom the SecureRandom to use. Returns:KeyWrapperUsingSecureRandom<ElGamal.WrapParameters> a signer which will use random where random data is required.

withSecureRandom

back to summary

public KeyWrapperUsingSecureRandom<ElGamal.WrapParameters> withSecureRandom(SecureRandom random)

Implements org.bouncycastle.crypto.KeyWrapperUsingSecureRandom.withSecureRandom.

Doc from org.bouncycastle.crypto.KeyWrapperUsingSecureRandom.withSecureRandom.

Return a variant of this signer using the passed in random as its source of randomness.

Parameters

random:SecureRandom: the SecureRandom to use.

Returns:KeyWrapperUsingSecureRandom<ElGamal.WrapParameters>

a signer which will use random where random data is required.

wrap

back to summary

public byte[] wrap(byte[] in, int inOff, int inLen) throws PlainInputProcessingException

Implements org.bouncycastle.crypto.KeyWrapper.wrap.

Doc from org.bouncycastle.crypto.KeyWrapper.wrap.

Return the wrapped version of a key byte encoding.

Parameters

in:byte[]: input data array.
inOff:int: offset into data array key data starts at.
inLen:int: length of key data.

Returns:byte[]

the wrapped encoding of the key.

Exceptions

PlainInputProcessingException:: if the passed in input cannot be processed.

org.bouncycastle.crypto.general back to summary

public final Class ElGamal.OAEPParameters

Class Inheritance

extends Parameters
implements WrapParameters

java.lang.Object
org.bouncycastle.crypto.general.GeneralParameters
org.bouncycastle.crypto.general.ElGamal.Parameters
org.bouncycastle.crypto.general.ElGamal.OAEPParameters

All Implemented Interfaces

org.bouncycastle.crypto.general.ElGamal.WrapParameters, org.bouncycastle.crypto.Parameters

Parameters for use with OAEP formatted key wrapping/unwrapping and encryption/decryption.

Field Summary

Modifier and Type	Field and Description
private final DigestAlgorithm	digestAlgorithm
private final byte[]	encodingParams
private final DigestAlgorithm	mgfDigestAlgorithm

Constructor Summary

Access	Constructor and Description
pack-priv	OAEPParameters()
private	OAEPParameters(DigestAlgorithm digestAlgorithm, DigestAlgorithm mgfDigestAlgorithm, byte[] encodingParams)

Method Summary

Modifier and Type	Method and Description
public DigestAlgorithm	getDigest()
public byte[]	getEncodingParams()
public DigestAlgorithm	getMGFDigest()
public ElGamal.OAEPParameters	Returns: a new parameter set. withDigest(DigestAlgorithm a digest algorithm. digestAlgorithm) Specify the digest algorithm to use.
public ElGamal.OAEPParameters	Returns: a new parameter set. withEncodingParams(byte[] encoding params to include. encodingParams) Set the encoding parameters.
public ElGamal.OAEPParameters	Returns: a new parameter set. withMGFDigest(DigestAlgorithm a digest algorithm for the MGF. mgfDigestAlgorithm) Specify the digest algorithm to use for the MGF.

Field Detail

digestAlgorithm	back to summary
private final DigestAlgorithm digestAlgorithm

encodingParams	back to summary
private final byte[] encodingParams

mgfDigestAlgorithm	back to summary
private final DigestAlgorithm mgfDigestAlgorithm

Constructor Detail

OAEPParameters	back to summary
pack-priv OAEPParameters()

OAEPParameters	back to summary
private OAEPParameters(DigestAlgorithm digestAlgorithm, DigestAlgorithm mgfDigestAlgorithm, byte[] encodingParams)

Method Detail

getDigest	back to summary
public DigestAlgorithm getDigest()

getEncodingParams	back to summary
public byte[] getEncodingParams()

getMGFDigest	back to summary
public DigestAlgorithm getMGFDigest()

withDigest

back to summary

public ElGamal.OAEPParameters withDigest(DigestAlgorithm digestAlgorithm)

Specify the digest algorithm to use. This also sets the MGF digest.

Parameters

digestAlgorithm:DigestAlgorithm: a digest algorithm.

Returns:ElGamal.OAEPParameters

a new parameter set.

withEncodingParams

back to summary

public ElGamal.OAEPParameters withEncodingParams(byte[] encodingParams)

Set the encoding parameters.

Parameters

encodingParams:byte[]: encoding params to include.

Returns:ElGamal.OAEPParameters

a new parameter set.

withMGFDigest

back to summary

public ElGamal.OAEPParameters withMGFDigest(DigestAlgorithm mgfDigestAlgorithm)

Specify the digest algorithm to use for the MGF.

Parameters

mgfDigestAlgorithm:DigestAlgorithm: a digest algorithm for the MGF.

Returns:ElGamal.OAEPParameters

a new parameter set.

org.bouncycastle.crypto.general back to summary

public final Class ElGamal.OperatorFactory

Class Inheritance

extends GuardedAsymmetricOperatorFactory<ElGamal.Parameters>

java.lang.Object
org.bouncycastle.crypto.general.GuardedAsymmetricOperatorFactory
org.bouncycastle.crypto.general.ElGamal.OperatorFactory

Factory for creating ElGamal encryption/decryption operators.

Constructor Summary

Access	Constructor and Description
public	OperatorFactory()

Method Summary

Modifier and Type	Method and Description
public SingleBlockDecryptor<ElGamal.Parameters>	createBlockDecryptor(AsymmetricKey the key to be used in the decryptor. key, final ElGamal.Parameters the parameter set for the decryptor. parameters) Implements org.bouncycastle.crypto.AsymmetricOperatorFactory.createBlockDecryptor. Create a block decryptor for the passed in key and parameter set.
protected AsymmetricBlockCipher	createCipher(boolean forEncryption, AsymmetricKey key, ElGamal.Parameters parameters, SecureRandom random) Implements abstract org.bouncycastle.crypto.general.GuardedAsymmetricOperatorFactory.createCipher.

Inherited from org.bouncycastle.crypto.general.GuardedAsymmetricOperatorFactory:: createBlockEncryptor isRawEngine

Constructor Detail

OperatorFactory	back to summary
public OperatorFactory()

Method Detail

createBlockDecryptor

back to summary

public SingleBlockDecryptor<ElGamal.Parameters> createBlockDecryptor(AsymmetricKey key, final ElGamal.Parameters parameters)

Implements org.bouncycastle.crypto.AsymmetricOperatorFactory.createBlockDecryptor.

Doc from org.bouncycastle.crypto.AsymmetricOperatorFactory.createBlockDecryptor.

Create a block decryptor for the passed in key and parameter set.

Parameters

key:AsymmetricKey: the key to be used in the decryptor.
parameters:ElGamal.Parameters: the parameter set for the decryptor.

Returns:SingleBlockDecryptor<ElGamal.Parameters>

an initialised block decryptor for the passed in arguments.

createCipher

back to summary

protected AsymmetricBlockCipher createCipher(boolean forEncryption, AsymmetricKey key, ElGamal.Parameters parameters, SecureRandom random)

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

Annotations

@Override

org.bouncycastle.crypto.general back to summary

public Class ElGamal.Parameters

Class Inheritance

extends GeneralParameters

java.lang.Object
org.bouncycastle.crypto.general.GeneralParameters
org.bouncycastle.crypto.general.ElGamal.Parameters

Known Direct Subclasses

org.bouncycastle.crypto.general.ElGamal.RawParameters, org.bouncycastle.crypto.general.ElGamal.PKCS1v15Parameters, org.bouncycastle.crypto.general.ElGamal.OAEPParameters

Base class for ElGamal encryption/decryption and key wrap/unwrap parameters.

Constructor Summary

Access	Constructor and Description
pack-priv	Parameters(GeneralAlgorithm algorithm)

Method Summary

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

Constructor Detail

Parameters	back to summary
pack-priv Parameters(GeneralAlgorithm algorithm)

org.bouncycastle.crypto.general back to summary

public final Class ElGamal.PKCS1v15Parameters

Class Inheritance

extends Parameters
implements WrapParameters

java.lang.Object
org.bouncycastle.crypto.general.GeneralParameters
org.bouncycastle.crypto.general.ElGamal.Parameters
org.bouncycastle.crypto.general.ElGamal.PKCS1v15Parameters

All Implemented Interfaces

org.bouncycastle.crypto.general.ElGamal.WrapParameters, org.bouncycastle.crypto.Parameters

Parameters for use with PKCS#1 v1.5 formatted key wrapping/unwrapping and encryption/decryption.

Constructor Summary

Access	Constructor and Description
pack-priv	PKCS1v15Parameters()

Constructor Detail

PKCS1v15Parameters	back to summary
pack-priv PKCS1v15Parameters()

org.bouncycastle.crypto.general back to summary

public final Class ElGamal.RawParameters

Class Inheritance

extends Parameters

java.lang.Object
org.bouncycastle.crypto.general.GeneralParameters
org.bouncycastle.crypto.general.ElGamal.Parameters
org.bouncycastle.crypto.general.ElGamal.RawParameters

Parameters for use with unformatted encryption/decryption.

Constructor Summary

Access	Constructor and Description
pack-priv	RawParameters()

Constructor Detail

RawParameters	back to summary
pack-priv RawParameters()

org.bouncycastle.crypto.general back to summary

private final Enum ElGamal.Variations

Class Inheritance

extends Enum<ElGamal.Variations>

java.lang.Object
java.lang.Enum
org.bouncycastle.crypto.general.ElGamal.Variations

Field Summary

Modifier and Type	Field and Description
public static final ElGamal.Variations	OAEP
public static final ElGamal.Variations	PKCS1v1_5
public static final ElGamal.Variations	RAW

Constructor Summary

Access	Constructor and Description
private	Variations()

Method Summary

Modifier and Type	Method and Description
public static ElGamal.Variations	valueOf(String name)
public static ElGamal.Variations[]	values()

Inherited from java.lang.Enum:: clone compareTo describeConstable equals finalize getDeclaringClass hashCode name ordinal toString valueOf

Field Detail

OAEP	back to summary
public static final ElGamal.Variations OAEP

PKCS1v1_5	back to summary
public static final ElGamal.Variations PKCS1v1_5

RAW	back to summary
public static final ElGamal.Variations RAW

Constructor Detail

Variations	back to summary
private Variations()

Method Detail

valueOf	back to summary
public static ElGamal.Variations valueOf(String name)

values	back to summary
public static ElGamal.Variations[] values()

org.bouncycastle.crypto.general back to summary

public Interface ElGamal.WrapParameters

Known Direct Implementers: org.bouncycastle.crypto.general.ElGamal.PKCS1v15Parameters, org.bouncycastle.crypto.general.ElGamal.OAEPParameters

Marker interface for parameters that can also be used for key wrapping.

Method Summary

Inherited from org.bouncycastle.crypto.Parameters:: getAlgorithm