iaik.xml.crypto.alg.cipher

Class DESedeKWProxyCipher

java.lang.Object

javax.crypto.CipherSpi

iaik.xml.crypto.alg.cipher.DESedeKWProxyCipher

public class DESedeKWProxyCipher
extends CipherSpi

This Cipher implements the CMS TripleDES symmetric key wrap algorithm as defined by XML-Encryption Syntax and Processing, Section 5.6.2

Field Summary

Fields

Modifier and Type	Field and Description
protected ByteArrayOutputStream	buffer_ The buffer for the engineUpdate methods.
protected Cipher	cipher1_ The first cipher.
protected Cipher	cipher2_ The second cipher.
int	CKS_LENGTH The length of the CMS checksum value as defined in RFC3217: Triple-DES and RC2 Key Wrapping.
static byte[]	CMS_KEY_WRAP_IV The IV for the last encryption step of CMS key wrap.
protected Key	key_ The key.
protected int	opmode_ The mode of operation.
protected SecureRandom	secureRandom_ The secure random.

Constructor Summary

Constructors

Constructor and Description
DESedeKWProxyCipher() Creates a new instance of this DESedeKWProxyCipher.

Method Summary

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(Key key)
protected int	engineGetOutputSize(int inputLen)
protected AlgorithmParameters	engineGetParameters()
protected void	engineInit(int opmode, Key key, AlgorithmParameterSpec params, SecureRandom random)
protected void	engineInit(int opmode, Key key, AlgorithmParameters params, SecureRandom random)
protected void	engineInit(int opmode, Key key, SecureRandom random)
protected void	engineSetMode(String mode)
protected void	engineSetPadding(String padding)
protected Key	engineUnwrap(byte[] wrappedKey, String wrappedKeyAlgorithm, int wrappedKeyType)
protected byte[]	engineUpdate(byte[] input, int inputOffset, int inputLen)
protected int	engineUpdate(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)
protected byte[]	engineWrap(Key key)
protected void	getInstance(XSecProvider.Purpose purpose)
protected void	getInstanceUncaught(XSecProvider.Purpose purpose)

Methods inherited from class javax.crypto.CipherSpi

engineDoFinal, engineUpdate, engineUpdateAAD, engineUpdateAAD

Methods inherited from class java.lang.Object

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

Field Detail

CMS_KEY_WRAP_IV

public static final byte[] CMS_KEY_WRAP_IV

The IV for the last encryption step of CMS key wrap. See RFC 2630, section 12.6.2 - 12.6.5:

         IV = 0x4adda22c79e82105.
 

CKS_LENGTH

public final int CKS_LENGTH

The length of the CMS checksum value as defined in RFC3217: Triple-DES and RC2 Key Wrapping.

See Also:

Constant Field Values

buffer_

protected ByteArrayOutputStream buffer_

The buffer for the engineUpdate methods.

cipher1_

protected Cipher cipher1_

The first cipher.

cipher2_

protected Cipher cipher2_

The second cipher.

secureRandom_

protected SecureRandom secureRandom_

The secure random.

opmode_

protected int opmode_

The mode of operation.

key_

protected Key key_

The key.

Constructor Detail

DESedeKWProxyCipher

public DESedeKWProxyCipher()
                    throws NoSuchAlgorithmException,
                           NoSuchProviderException,
                           NoSuchPaddingException

Creates a new instance of this DESedeKWProxyCipher.

Throws:

NoSuchAlgorithmException

NoSuchPaddingException

NoSuchProviderException

Method Detail

getInstanceUncaught

protected void getInstanceUncaught(XSecProvider.Purpose purpose)
                            throws NoSuchAlgorithmException,
                                   NoSuchProviderException,
                                   NoSuchPaddingException

Throws:

NoSuchAlgorithmException

NoSuchProviderException

NoSuchPaddingException

getInstance

protected void getInstance(XSecProvider.Purpose purpose)

engineInit

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

Specified by:

engineInit in class CipherSpi

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

See Also:

CipherSpi.engineInit(int, java.security.Key, java.security.AlgorithmParameters, java.security.SecureRandom)

engineInit

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

Specified by:

engineInit in class CipherSpi

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

See Also:

CipherSpi.engineInit(int, java.security.Key, java.security.spec.AlgorithmParameterSpec, java.security.SecureRandom)

engineInit

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

Specified by:

engineInit in class CipherSpi

Throws:

InvalidKeyException

See Also:

CipherSpi.engineInit(int, java.security.Key, java.security.SecureRandom)

engineUnwrap

protected Key engineUnwrap(byte[] wrappedKey,
                           String wrappedKeyAlgorithm,
                           int wrappedKeyType)
                    throws InvalidKeyException,
                           NoSuchAlgorithmException

Overrides:

engineUnwrap in class CipherSpi

Throws:

InvalidKeyException

NoSuchAlgorithmException

See Also:

CipherSpi.engineUnwrap(byte[], java.lang.String, int)

engineWrap

protected byte[] engineWrap(Key key)
                     throws IllegalBlockSizeException,
                            InvalidKeyException

Overrides:

engineWrap in class CipherSpi

Throws:

IllegalBlockSizeException

InvalidKeyException

See Also:

CipherSpi.engineWrap(java.security.Key)

engineDoFinal

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

Specified by:

engineDoFinal in class CipherSpi

Throws:

ShortBufferException

IllegalBlockSizeException

BadPaddingException

See Also:

CipherSpi.engineDoFinal(byte[], int, int, byte[], int)

engineDoFinal

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

Specified by:

engineDoFinal in class CipherSpi

Throws:

IllegalBlockSizeException

BadPaddingException

See Also:

CipherSpi.engineDoFinal(byte[], int, int)

engineSetMode

protected void engineSetMode(String mode)
                      throws NoSuchAlgorithmException

Specified by:

engineSetMode in class CipherSpi

Throws:

NoSuchAlgorithmException

See Also:

CipherSpi.engineSetMode(java.lang.String)

engineSetPadding

protected void engineSetPadding(String padding)
                         throws NoSuchPaddingException

Specified by:

engineSetPadding in class CipherSpi

Throws:

NoSuchPaddingException

See Also:

CipherSpi.engineSetPadding(java.lang.String)

engineGetBlockSize

protected int engineGetBlockSize()

Specified by:

engineGetBlockSize in class CipherSpi

See Also:

CipherSpi.engineGetBlockSize()

engineGetOutputSize

protected int engineGetOutputSize(int inputLen)

Specified by:

engineGetOutputSize in class CipherSpi

See Also:

CipherSpi.engineGetOutputSize(int)

engineGetIV

protected byte[] engineGetIV()

Specified by:

engineGetIV in class CipherSpi

See Also:

CipherSpi.engineGetIV()

engineGetParameters

protected AlgorithmParameters engineGetParameters()

Specified by:

engineGetParameters in class CipherSpi

See Also:

CipherSpi.engineGetParameters()

engineUpdate

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

Specified by:

engineUpdate in class CipherSpi

See Also:

CipherSpi.engineUpdate(byte[], int, int)

engineUpdate

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

Specified by:

engineUpdate in class CipherSpi

Throws:

ShortBufferException

See Also:

CipherSpi.engineUpdate(byte[], int, int, byte[], int)

engineGetKeySize

protected int engineGetKeySize(Key key)
                        throws InvalidKeyException

Overrides:

engineGetKeySize in class CipherSpi

Throws:

InvalidKeyException

See Also:

CipherSpi.engineGetKeySize(java.security.Key)