com.ibm.crypto.fips.provider

Class AESGCMCipher

java.lang.Object

javax.crypto.CipherSpi

com.ibm.crypto.fips.provider.AESGCMCipher

All Implemented Interfaces:

AESConstants, GCMConstants

public final class AESGCMCipher
extends javax.crypto.CipherSpi
implements AESConstants, GCMConstants

This is an implementation of AES GCM mode, which does not currently support Cipher.update.

Field Summary

Fields inherited from interface com.ibm.crypto.fips.provider.AESConstants

AES_BLOCK_SIZE, AES_KEYSIZES

Fields inherited from interface com.ibm.crypto.fips.provider.GCMConstants

DEFAULT_TAG_LENGTH, GCM_TAG_LENGTHS, GENERATED_IV_COUNTER_FIELD_LENGTH, GENERATED_IV_DEVICE_FIELD_LENGTH, GENERATED_IV_MAX_INVOCATIONS, GENERATED_IV_TOTAL_LENGTH

Constructor Summary

Constructors

Constructor and Description
AESGCMCipher() Constructs a new AESGCMCipher instance.

Method Summary

Methods

Modifier and Type	Method and Description
protected byte[]	engineDoFinal(byte[] input, int inputOffset, int inputLen)
protected int	engineDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)
protected int	engineGetBlockSize()
protected byte[]	engineGetIV()
protected int	engineGetKeySize(java.security.Key key) Returns the key size of the given key object.
protected int	engineGetOutputSize(int inputLen)
protected java.security.AlgorithmParameters	engineGetParameters()
protected void	engineInit(int opmode, java.security.Key key, java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random)
protected void	engineInit(int opmode, java.security.Key key, java.security.AlgorithmParameters params, java.security.SecureRandom random)
protected void	engineInit(int opmode, java.security.Key key, java.security.SecureRandom random)
protected void	engineSetMode(java.lang.String mode)
protected void	engineSetPadding(java.lang.String padding)
protected byte[]	engineUpdate(byte[] input, int inputOffset, int inputLen)
protected int	engineUpdate(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)
protected void	engineUpdateAAD(byte[] src, int offset, int len)
protected void	engineUpdateAAD(java.nio.ByteBuffer src)
protected byte[]	internalDoFinal(byte[] input, int inputOffset, int inputLen)
protected int	internalDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)
protected int	internalGetBlockSize()
protected byte[]	internalGetIV()
protected int	internalGetKeySize(java.security.Key key)
protected int	internalGetOutputSize(int inputLen)
protected java.security.AlgorithmParameters	internalGetParameters()
protected void	internalInit(int opmode, java.security.Key key, java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random)
protected void	internalInit(int opmode, java.security.Key key, java.security.AlgorithmParameters params, java.security.SecureRandom random)
protected void	internalInit(int opmode, java.security.Key key, java.security.SecureRandom random)
protected void	internalSetMode(java.lang.String mode)
protected void	internalSetPadding(java.lang.String padding)
protected byte[]	internalUpdate(byte[] input, int inputOffset, int inputLen)
protected int	internalUpdate(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)
protected void	internalUpdateAAD(byte[] src, int offset, int len)
protected void	internalUpdateAAD(java.nio.ByteBuffer src)

Methods inherited from class javax.crypto.CipherSpi

engineDoFinal, engineUnwrap, engineUpdate, engineWrap

Methods inherited from class java.lang.Object

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

Constructor Detail

AESGCMCipher

public AESGCMCipher()

Constructs a new AESGCMCipher instance.

Method Detail

engineDoFinal

protected byte[] engineDoFinal(byte[] input,
                   int inputOffset,
                   int inputLen)
                        throws javax.crypto.IllegalBlockSizeException,
                               javax.crypto.BadPaddingException

Specified by:

engineDoFinal in class javax.crypto.CipherSpi

Throws:

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

internalDoFinal

protected byte[] internalDoFinal(byte[] input,
                     int inputOffset,
                     int inputLen)
                          throws javax.crypto.IllegalBlockSizeException,
                                 javax.crypto.BadPaddingException

Throws:

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

engineDoFinal

protected int engineDoFinal(byte[] input,
                int inputOffset,
                int inputLen,
                byte[] output,
                int outputOffset)
                     throws javax.crypto.ShortBufferException,
                            javax.crypto.IllegalBlockSizeException,
                            javax.crypto.BadPaddingException

Specified by:

engineDoFinal in class javax.crypto.CipherSpi

Throws:

javax.crypto.ShortBufferException

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

internalDoFinal

protected int internalDoFinal(byte[] input,
                  int inputOffset,
                  int inputLen,
                  byte[] output,
                  int outputOffset)
                       throws javax.crypto.ShortBufferException,
                              javax.crypto.IllegalBlockSizeException,
                              javax.crypto.BadPaddingException,
                              java.lang.IllegalStateException

Throws:

javax.crypto.ShortBufferException

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

java.lang.IllegalStateException

engineGetBlockSize

protected int engineGetBlockSize()

Specified by:

engineGetBlockSize in class javax.crypto.CipherSpi

internalGetBlockSize

protected int internalGetBlockSize()

engineGetIV

protected byte[] engineGetIV()

Specified by:

engineGetIV in class javax.crypto.CipherSpi

internalGetIV

protected byte[] internalGetIV()

engineGetOutputSize

protected int engineGetOutputSize(int inputLen)

Specified by:

engineGetOutputSize in class javax.crypto.CipherSpi

internalGetOutputSize

protected int internalGetOutputSize(int inputLen)

engineGetParameters

protected java.security.AlgorithmParameters engineGetParameters()

Specified by:

engineGetParameters in class javax.crypto.CipherSpi

internalGetParameters

protected java.security.AlgorithmParameters internalGetParameters()

engineInit

protected void engineInit(int opmode,
              java.security.Key key,
              java.security.SecureRandom random)
                   throws java.security.InvalidKeyException

Specified by:

engineInit in class javax.crypto.CipherSpi

Throws:

java.security.InvalidKeyException

internalInit

protected void internalInit(int opmode,
                java.security.Key key,
                java.security.SecureRandom random)
                     throws java.security.InvalidKeyException,
                            java.lang.IllegalStateException

Throws:

java.security.InvalidKeyException

java.lang.IllegalStateException

engineInit

protected void engineInit(int opmode,
              java.security.Key key,
              java.security.spec.AlgorithmParameterSpec params,
              java.security.SecureRandom random)
                   throws java.security.InvalidKeyException,
                          java.security.InvalidAlgorithmParameterException

Specified by:

engineInit in class javax.crypto.CipherSpi

Throws:

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

internalInit

protected void internalInit(int opmode,
                java.security.Key key,
                java.security.spec.AlgorithmParameterSpec params,
                java.security.SecureRandom random)
                     throws java.security.InvalidKeyException,
                            java.security.InvalidAlgorithmParameterException

Throws:

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

engineInit

protected void engineInit(int opmode,
              java.security.Key key,
              java.security.AlgorithmParameters params,
              java.security.SecureRandom random)
                   throws java.security.InvalidKeyException,
                          java.security.InvalidAlgorithmParameterException

Specified by:

engineInit in class javax.crypto.CipherSpi

Throws:

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

internalInit

protected void internalInit(int opmode,
                java.security.Key key,
                java.security.AlgorithmParameters params,
                java.security.SecureRandom random)
                     throws java.security.InvalidKeyException,
                            java.security.InvalidAlgorithmParameterException

Throws:

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

engineSetMode

protected void engineSetMode(java.lang.String mode)
                      throws java.security.NoSuchAlgorithmException

Specified by:

engineSetMode in class javax.crypto.CipherSpi

Throws:

java.security.NoSuchAlgorithmException

internalSetMode

protected void internalSetMode(java.lang.String mode)
                        throws java.security.NoSuchAlgorithmException

Throws:

java.security.NoSuchAlgorithmException

engineSetPadding

protected void engineSetPadding(java.lang.String padding)
                         throws javax.crypto.NoSuchPaddingException

Specified by:

engineSetPadding in class javax.crypto.CipherSpi

Throws:

javax.crypto.NoSuchPaddingException

internalSetPadding

protected void internalSetPadding(java.lang.String padding)
                           throws javax.crypto.NoSuchPaddingException

Throws:

javax.crypto.NoSuchPaddingException

engineUpdate

protected byte[] engineUpdate(byte[] input,
                  int inputOffset,
                  int inputLen)

Specified by:

engineUpdate in class javax.crypto.CipherSpi

internalUpdate

protected byte[] internalUpdate(byte[] input,
                    int inputOffset,
                    int inputLen)

engineUpdate

protected int engineUpdate(byte[] input,
               int inputOffset,
               int inputLen,
               byte[] output,
               int outputOffset)
                    throws javax.crypto.ShortBufferException

Specified by:

engineUpdate in class javax.crypto.CipherSpi

Throws:

javax.crypto.ShortBufferException

internalUpdate

protected int internalUpdate(byte[] input,
                 int inputOffset,
                 int inputLen,
                 byte[] output,
                 int outputOffset)
                      throws javax.crypto.ShortBufferException

Throws:

javax.crypto.ShortBufferException

engineUpdateAAD

protected void engineUpdateAAD(byte[] src,
                   int offset,
                   int len)

Overrides:

engineUpdateAAD in class javax.crypto.CipherSpi

internalUpdateAAD

protected void internalUpdateAAD(byte[] src,
                     int offset,
                     int len)

engineUpdateAAD

protected void engineUpdateAAD(java.nio.ByteBuffer src)

Overrides:

engineUpdateAAD in class javax.crypto.CipherSpi

internalUpdateAAD

protected void internalUpdateAAD(java.nio.ByteBuffer src)

engineGetKeySize

protected int engineGetKeySize(java.security.Key key)
                        throws java.security.InvalidKeyException

Returns the key size of the given key object.

Overrides:

engineGetKeySize in class javax.crypto.CipherSpi

Parameters:

key - the key object.

Returns:

the key size of the given key object.

Throws:

java.security.InvalidKeyException - if key is invalid.

internalGetKeySize

protected int internalGetKeySize(java.security.Key key)
                          throws java.security.InvalidKeyException

Throws:

java.security.InvalidKeyException