org.mozilla.jss.pkcs11
Class PK11Cipher

java.lang.Object
  |
  +--org.mozilla.jss.crypto.Cipher
        |
        +--org.mozilla.jss.pkcs11.PK11Cipher

final class PK11Cipher

extends Cipher

Field Summary

private EncryptionAlgorithm	algorithm
private CipherContextProxy	contextProxy
private static int	DECRYPT
private static int	ENCRYPT
private byte[]	IV
private SymmetricKey	key
private java.security.spec.AlgorithmParameterSpec	parameters
private int	state
private PK11Token	token
private static int	UNINITIALIZED

Constructor Summary

private	PK11Cipher()
(package private)	PK11Cipher(PK11Token token, EncryptionAlgorithm algorithm)

Method Summary

private void	checkKey(SymmetricKey key) Checks for null, makes sure the key lives on the correct token, makes sure it is a PKCS #11 key, makes sure it's the right type for this algorithm.
private void	checkParams(java.security.spec.AlgorithmParameterSpec params) Matches the params against those expected by the algorithm.
byte[]	doFinal() Completes an cipher operation.
byte[]	doFinal(byte[] bytes) Completes an cipher operation.
byte[]	doFinal(byte[] bytes, int offset, int length) Completes an cipher operation.
private static byte[]	finalizeContext(CipherContextProxy context, int blocksize, boolean padded)
private static CipherContextProxy	initContext(boolean encrypt, SymmetricKey key, EncryptionAlgorithm alg, byte[] IV)
void	initDecrypt(SymmetricKey key) Initializes a decryption context with a symmetric key.
void	initDecrypt(SymmetricKey key, java.security.spec.AlgorithmParameterSpec parameters) Initializes a decryption context with a symmetric key and algorithm parameters.
void	initEncrypt(SymmetricKey key) Initializes a encryption context with a symmetric key.
void	initEncrypt(SymmetricKey key, java.security.spec.AlgorithmParameterSpec parameters) Initializes an encryption context with a symmetric key and algorithm parameters.
private void	reset()
byte[]	update(byte[] bytes) Updates the encryption context with additional input.
byte[]	update(byte[] bytes, int offset, int length) Updates the encryption context with additional plaintext.
private static byte[]	updateContext(CipherContextProxy context, byte[] input, int blocksize)

Methods inherited from class org.mozilla.jss.crypto.Cipher

pad, unPad, unPad

Methods inherited from class java.lang.Object

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

Field Detail

token

private PK11Token token

algorithm

private EncryptionAlgorithm algorithm

parameters

private java.security.spec.AlgorithmParameterSpec parameters

key

private SymmetricKey key

IV

private byte[] IV

contextProxy

private CipherContextProxy contextProxy

state

private int state

UNINITIALIZED

private static final int UNINITIALIZED

See Also:

Constant Field Values

ENCRYPT

private static final int ENCRYPT

See Also:

Constant Field Values

DECRYPT

private static final int DECRYPT

See Also:

Constant Field Values

Constructor Detail

PK11Cipher

private PK11Cipher()

PK11Cipher

PK11Cipher(PK11Token token,
           EncryptionAlgorithm algorithm)

Method Detail

initEncrypt

public void initEncrypt(SymmetricKey key)
                 throws java.security.InvalidKeyException,
                        java.security.InvalidAlgorithmParameterException,
                        TokenException

Description copied from class: Cipher

Initializes a encryption context with a symmetric key.

Specified by:

initEncrypt in class Cipher

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

TokenException

initDecrypt

public void initDecrypt(SymmetricKey key)
                 throws java.security.InvalidKeyException,
                        java.security.InvalidAlgorithmParameterException,
                        TokenException

Description copied from class: Cipher

Initializes a decryption context with a symmetric key.

Specified by:

initDecrypt in class Cipher

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

TokenException

initEncrypt

public void initEncrypt(SymmetricKey key,
                        java.security.spec.AlgorithmParameterSpec parameters)
                 throws java.security.InvalidKeyException,
                        java.security.InvalidAlgorithmParameterException,
                        TokenException

Description copied from class: Cipher

Initializes an encryption context with a symmetric key and algorithm parameters.

Specified by:

initEncrypt in class Cipher

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

TokenException

initDecrypt

public void initDecrypt(SymmetricKey key,
                        java.security.spec.AlgorithmParameterSpec parameters)
                 throws java.security.InvalidKeyException,
                        java.security.InvalidAlgorithmParameterException,
                        TokenException

Description copied from class: Cipher

Initializes a decryption context with a symmetric key and algorithm parameters.

Specified by:

initDecrypt in class Cipher

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

TokenException

update

public byte[] update(byte[] bytes)
              throws java.lang.IllegalStateException,
                     TokenException

Description copied from class: Cipher

Updates the encryption context with additional input.

Specified by:

update in class Cipher

Parameters:

bytes - Bytes of plaintext (if encrypting) or ciphertext (if decrypting).

Returns:

Bytes of ciphertext (if encrypting) or plaintext (if decrypting).

java.lang.IllegalStateException

TokenException

update

public byte[] update(byte[] bytes,
                     int offset,
                     int length)
              throws java.lang.IllegalStateException,
                     TokenException

Description copied from class: Cipher

Updates the encryption context with additional plaintext.

Specified by:

update in class Cipher

Parameters:

bytes - Bytes of plaintext (if encrypting) or ciphertext (if decrypting).

offset - The index in bytes at which to begin reading.

length - The number of bytes from bytes to read.

Returns:

Bytes of ciphertext (if encrypting) or plaintext (if decrypting).

java.lang.IllegalStateException

TokenException

doFinal

public byte[] doFinal(byte[] bytes)
               throws java.lang.IllegalStateException,
                      IllegalBlockSizeException,
                      BadPaddingException,
                      TokenException

Description copied from class: Cipher

Completes an cipher operation. This can be called directly after the context is initialized, or update may be called any number of times before calling final.

Specified by:

doFinal in class Cipher

Parameters:

bytes - Bytes of plaintext (if encrypting) or ciphertext (if decrypting).

Returns:

The last of the output.

java.lang.IllegalStateException

IllegalBlockSizeException

BadPaddingException

TokenException

doFinal

public byte[] doFinal(byte[] bytes,
                      int offset,
                      int length)
               throws java.lang.IllegalStateException,
                      IllegalBlockSizeException,
                      BadPaddingException,
                      TokenException

Description copied from class: Cipher

Completes an cipher operation.

Specified by:

doFinal in class Cipher

Parameters:

bytes - Bytes of plaintext (if encrypting) or ciphertext (if decrypting).

offset - The index in bytes at which to begin reading.

length - The number of bytes from bytes to read.

Returns:

The last of the output.

java.lang.IllegalStateException

IllegalBlockSizeException

BadPaddingException

TokenException

doFinal

public byte[] doFinal()
               throws java.lang.IllegalStateException,
                      IllegalBlockSizeException,
                      BadPaddingException,
                      TokenException

Description copied from class: Cipher

Completes an cipher operation.

Specified by:

doFinal in class Cipher

Returns:

The last of the output.

java.lang.IllegalStateException

IllegalBlockSizeException

BadPaddingException

TokenException

initContext

private static CipherContextProxy initContext(boolean encrypt,
                                              SymmetricKey key,
                                              EncryptionAlgorithm alg,
                                              byte[] IV)
                                       throws TokenException

TokenException

updateContext

private static byte[] updateContext(CipherContextProxy context,
                                    byte[] input,
                                    int blocksize)
                             throws TokenException

TokenException

finalizeContext

private static byte[] finalizeContext(CipherContextProxy context,
                                      int blocksize,
                                      boolean padded)
                               throws TokenException,
                                      IllegalBlockSizeException,
                                      BadPaddingException

TokenException

IllegalBlockSizeException

BadPaddingException

reset

private void reset()

checkParams

private void checkParams(java.security.spec.AlgorithmParameterSpec params)
                  throws java.security.InvalidAlgorithmParameterException

Matches the params against those expected by the algorithm.

java.security.InvalidAlgorithmParameterException

checkKey

private void checkKey(SymmetricKey key)
               throws java.security.InvalidKeyException

Checks for null, makes sure the key lives on the correct token, makes sure it is a PKCS #11 key, makes sure it's the right type for this algorithm.

java.security.InvalidKeyException