Nested and Inner Type Summary

Modifier and Type	Class and Description
public static class	KeyPairGeneratorSpi.Ed25519
public static class	KeyPairGeneratorSpi.Ed448
public static class	KeyPairGeneratorSpi.EdDSA
public static class	KeyPairGeneratorSpi.X25519
public static class	KeyPairGeneratorSpi.X448
public static class	KeyPairGeneratorSpi.XDH

Field Summary

Modifier and Type	Field and Description
private final int	algorithmDeclared
private int	algorithmInitialized
private static final int	Ed25519
private static final int	Ed448
private static final int	EdDSA
private AsymmetricCipherKeyPairGenerator	generator
private SecureRandom	secureRandom
private static final int	X25519
private static final int	X448
private static final int	XDH

Access	Constructor and Description
pack-priv	KeyPairGeneratorSpi(int algorithmDeclared)

Method Summary

Modifier and Type	Method and Description
public KeyPair	generateKeyPair() Implements abstract java.security.KeyPairGeneratorSpi.generateKeyPair. Generates a key pair.
private static int	getAlgorithmFamily(int algorithm)
private static int	getAlgorithmForName(String name)
private int	getAlgorithmForStrength(int strength)
private static String	getNameFromParams(AlgorithmParameterSpec paramSpec)
public void	initialize(int the keysize. This is an algorithm-specific metric, such as modulus length, specified in number of bits. strength, SecureRandom the source of randomness for this generator. secureRandom) Implements abstract java.security.KeyPairGeneratorSpi.initialize. Initializes the key pair generator for a certain keysize, using the default parameter set.
public void	initialize(AlgorithmParameterSpec the parameter set used to generate the keys. paramSpec, SecureRandom the source of randomness for this generator. secureRandom) Overrides java.security.KeyPairGeneratorSpi.initialize. Initializes the key pair generator using the specified parameter set and user-provided source of randomness.
private AsymmetricCipherKeyPairGenerator	setupGenerator()

Field Detail

algorithmDeclared	back to summary
private final int algorithmDeclared

algorithmInitialized	back to summary
private int algorithmInitialized

Ed25519	back to summary
private static final int Ed25519

Ed448	back to summary
private static final int Ed448

EdDSA	back to summary
private static final int EdDSA

generator	back to summary
private AsymmetricCipherKeyPairGenerator generator

secureRandom	back to summary
private SecureRandom secureRandom

X25519	back to summary
private static final int X25519

X448	back to summary
private static final int X448

XDH	back to summary
private static final int XDH

Constructor Detail

KeyPairGeneratorSpi	back to summary
pack-priv KeyPairGeneratorSpi(int algorithmDeclared)

Method Detail

generateKeyPair back to summary

generateKeyPair	back to summary
public KeyPair generateKeyPair() Implements abstract java.security.KeyPairGeneratorSpi.generateKeyPair. Doc from java.security.KeyPairGeneratorSpi.generateKeyPair. Generates a key pair. Unless an initialization method is called using a KeyPairGenerator interface, algorithm-specific defaults will be used. This will generate a new key pair every time it is called. Returns:KeyPair the newly generated `KeyPair`

public KeyPair generateKeyPair()

Implements abstract java.security.KeyPairGeneratorSpi.generateKeyPair.

Doc from java.security.KeyPairGeneratorSpi.generateKeyPair.

Generates a key pair. Unless an initialization method is called using a KeyPairGenerator interface, algorithm-specific defaults will be used. This will generate a new key pair every time it is called.

Returns:KeyPair: the newly generated KeyPair

getAlgorithmFamily	back to summary
private static int getAlgorithmFamily(int algorithm)

getAlgorithmForName	back to summary
private static int getAlgorithmForName(String name) throws InvalidAlgorithmParameterException

getAlgorithmForStrength	back to summary
private int getAlgorithmForStrength(int strength)

getNameFromParams	back to summary
private static String getNameFromParams(AlgorithmParameterSpec paramSpec) throws InvalidAlgorithmParameterException

initialize	back to summary
public void initialize(int strength, SecureRandom secureRandom) Implements abstract java.security.KeyPairGeneratorSpi.initialize. Doc from java.security.KeyPairGeneratorSpi.initialize. Initializes the key pair generator for a certain keysize, using the default parameter set. Parameters strength:int the keysize. This is an algorithm-specific metric, such as modulus length, specified in number of bits. secureRandom:SecureRandom the source of randomness for this generator.

initialize

back to summary

public void initialize(int strength, SecureRandom secureRandom)

Implements abstract java.security.KeyPairGeneratorSpi.initialize.

Doc from java.security.KeyPairGeneratorSpi.initialize.

Initializes the key pair generator for a certain keysize, using the default parameter set.

Parameters

strength:int: the keysize. This is an algorithm-specific metric, such as modulus length, specified in number of bits.
secureRandom:SecureRandom: the source of randomness for this generator.

initialize back to summary

initialize	back to summary
public void initialize(AlgorithmParameterSpec paramSpec, SecureRandom secureRandom) throws InvalidAlgorithmParameterException Overrides java.security.KeyPairGeneratorSpi.initialize. Doc from java.security.KeyPairGeneratorSpi.initialize. Initializes the key pair generator using the specified parameter set and user-provided source of randomness. This concrete method has been added to this previously-defined abstract class. (For backwards compatibility, it cannot be abstract.) It may be overridden by a provider to initialize the key pair generator. Such an override is expected to throw an `InvalidAlgorithmParameterException` if a parameter is inappropriate for this key pair generator. If this method is not overridden, it always throws an `UnsupportedOperationException`. Parameters paramSpec:AlgorithmParameterSpec the parameter set used to generate the keys. secureRandom:SecureRandom the source of randomness for this generator. Exceptions InvalidAlgorithmParameterException: if the given parameters are inappropriate for this key pair generator.

public void initialize(AlgorithmParameterSpec paramSpec, SecureRandom secureRandom) throws InvalidAlgorithmParameterException

Overrides java.security.KeyPairGeneratorSpi.initialize.

Doc from java.security.KeyPairGeneratorSpi.initialize.

Initializes the key pair generator using the specified parameter set and user-provided source of randomness.

This concrete method has been added to this previously-defined abstract class. (For backwards compatibility, it cannot be abstract.) It may be overridden by a provider to initialize the key pair generator. Such an override is expected to throw an InvalidAlgorithmParameterException if a parameter is inappropriate for this key pair generator. If this method is not overridden, it always throws an UnsupportedOperationException.

Parameters

paramSpec:AlgorithmParameterSpec: the parameter set used to generate the keys.
secureRandom:SecureRandom: the source of randomness for this generator.

Exceptions