gnu.crypto.jce.params
Class BlockCipherParameters

java.lang.Object
  |
  +--java.security.AlgorithmParametersSpi
        |
        +--gnu.crypto.jce.params.BlockCipherParameters

public class BlockCipherParameters

extends java.security.AlgorithmParametersSpi

An implementation of algorithm parameters for the GNU Crypto block ciphers. This encompasses the cipher's block size, its key size, and an optional initialization vector (IV).

Field Summary

protected BlockCipherParameterSpec

cipherSpec The underlying block cipher specification.

Constructor Summary

BlockCipherParameters()

Method Summary

protected byte[]	engineGetEncoded() Return these parameters encoded in ASN.1 (DER).
protected byte[]	engineGetEncoded(java.lang.String format)
protected java.security.spec.AlgorithmParameterSpec	engineGetParameterSpec(java.lang.Class c)
protected void	engineInit(java.security.spec.AlgorithmParameterSpec spec)
protected void	engineInit(byte[] encoded)
protected void	engineInit(byte[] encoded, java.lang.String format)
protected java.lang.String	engineToString()

Methods inherited from class java.lang.Object

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

Field Detail

cipherSpec

protected BlockCipherParameterSpec cipherSpec

The underlying block cipher specification.

Constructor Detail

BlockCipherParameters

public BlockCipherParameters()

Method Detail

engineGetEncoded

protected byte[] engineGetEncoded()
                           throws java.io.IOException

Return these parameters encoded in ASN.1 (DER).

For GNU Crypto block ciphers we will define these parameters as

BlockCipherParameters ::= SEQUENCE {
   blockSize            INTEGER,
   keySize              INTEGER,
   initializationVector OCTET STRING OPTIONAL }

Specified by:

engineGetEncoded in class java.security.AlgorithmParametersSpi

Returns:

The parameters, encoded an an ASN.1 DER sequence.

Throws:

java.io.IOException - If encoding these parameters fails.

engineGetEncoded

protected byte[] engineGetEncoded(java.lang.String format)
                           throws java.io.IOException

Specified by:

engineGetEncoded in class java.security.AlgorithmParametersSpi

java.io.IOException

engineInit

protected void engineInit(java.security.spec.AlgorithmParameterSpec spec)
                   throws java.security.spec.InvalidParameterSpecException

Specified by:

engineInit in class java.security.AlgorithmParametersSpi

java.security.spec.InvalidParameterSpecException

engineInit

protected void engineInit(byte[] encoded,
                          java.lang.String format)
                   throws java.io.IOException

Specified by:

engineInit in class java.security.AlgorithmParametersSpi

java.io.IOException

engineInit

protected void engineInit(byte[] encoded)
                   throws java.io.IOException

Specified by:

engineInit in class java.security.AlgorithmParametersSpi

java.io.IOException

engineGetParameterSpec

protected java.security.spec.AlgorithmParameterSpec engineGetParameterSpec(java.lang.Class c)
                                                                    throws java.security.spec.InvalidParameterSpecException

Specified by:

engineGetParameterSpec in class java.security.AlgorithmParametersSpi

java.security.spec.InvalidParameterSpecException

engineToString

protected java.lang.String engineToString()

Specified by:

engineToString in class java.security.AlgorithmParametersSpi