com.safenetinc.luna.provider.keyderive

Class LunaKeyDerivationHash

java.lang.Object

javax.crypto.KeyAgreementSpi

com.safenetinc.luna.provider.keyderive.LunaKeyDerivationHash

Direct Known Subclasses:

LunaKeyDerivationHashSHA1, LunaKeyDerivationHashSM3

public class LunaKeyDerivationHash
extends KeyAgreementSpi

Provides generic key factory methods for the hash key derivation mechanism

Field Summary

Fields

Modifier and Type	Field and Description
protected LunaKey	baseKey
protected long	mechType
protected SecretKeyFactory	skf

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LunaKeyDerivationHash(long mechType)

Method Summary

Modifier and Type	Method and Description
protected void	checkPublicKey(Key key, boolean lastPhase)
protected Key	engineDoPhase(Key key, boolean lastPhase)
protected byte[]	engineGenerateSecret()
protected int	engineGenerateSecret(byte[] sharedSecret, int offset)
protected SecretKey	engineGenerateSecret(String algorithm)
protected void	engineInit(Key key, AlgorithmParameterSpec params, SecureRandom random)
protected void	engineInit(Key key, SecureRandom random)
protected int	getDerivedKeyLength(long algId)
protected int	getMaxSharedSecretLength()

Methods inherited from class java.lang.Object

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

Field Detail

mechType

protected long mechType

baseKey

protected LunaKey baseKey

skf

protected final SecretKeyFactory skf

Constructor Detail

LunaKeyDerivationHash

protected LunaKeyDerivationHash(long mechType)

Method Detail

engineInit

protected void engineInit(Key key,
                          SecureRandom random)
                   throws InvalidKeyException

Specified by:

engineInit in class KeyAgreementSpi

Throws:

InvalidKeyException

engineDoPhase

protected Key engineDoPhase(Key key,
                            boolean lastPhase)
                     throws InvalidKeyException,
                            IllegalStateException

Specified by:

engineDoPhase in class KeyAgreementSpi

Throws:

InvalidKeyException

IllegalStateException

engineGenerateSecret

protected SecretKey engineGenerateSecret(String algorithm)
                                  throws IllegalStateException,
                                         NoSuchAlgorithmException,
                                         InvalidKeyException

Specified by:

engineGenerateSecret in class KeyAgreementSpi

Throws:

IllegalStateException

NoSuchAlgorithmException

InvalidKeyException

getMaxSharedSecretLength

protected int getMaxSharedSecretLength()

engineInit

protected void engineInit(Key key,
                          AlgorithmParameterSpec params,
                          SecureRandom random)
                   throws InvalidKeyException,
                          InvalidAlgorithmParameterException

Specified by:

engineInit in class KeyAgreementSpi

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

checkPublicKey

protected void checkPublicKey(Key key,
                              boolean lastPhase)
                       throws InvalidKeyException,
                              IllegalStateException

Throws:

InvalidKeyException

IllegalStateException

engineGenerateSecret

protected byte[] engineGenerateSecret()
                               throws IllegalStateException

Specified by:

engineGenerateSecret in class KeyAgreementSpi

Throws:

IllegalStateException

engineGenerateSecret

protected int engineGenerateSecret(byte[] sharedSecret,
                                   int offset)
                            throws IllegalStateException,
                                   ShortBufferException

Specified by:

engineGenerateSecret in class KeyAgreementSpi

Throws:

IllegalStateException

ShortBufferException

getDerivedKeyLength

protected int getDerivedKeyLength(long algId)
                           throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException