Package org.apache.sshd.common.cipher

Class BaseCTRCipher

java.lang.Object

org.apache.sshd.common.cipher.BaseCipher

org.apache.sshd.common.cipher.BaseCTRCipher

All Implemented Interfaces:

AlgorithmNameProvider, Cipher, CipherInformation, KeySizeIndicator

public class BaseCTRCipher
extends BaseCipher

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.sshd.common.cipher.BaseCipher

BaseCipher.CipherFactory

Nested classes/interfaces inherited from interface org.apache.sshd.common.cipher.Cipher

Cipher.Mode

Field Summary

Fields

Modifier and Type	Field	Description
private long	blocksProcessed

Fields inherited from class org.apache.sshd.common.cipher.BaseCipher

alwaysReInit, factory, mode

Constructor Summary

Constructors

Constructor	Description
BaseCTRCipher(int ivsize, int authSize, int kdfSize, java.lang.String algorithm, int keySize, java.lang.String transformation, int blkSize)

Method Summary

Modifier and Type	Method	Description
private void	addCarry(byte[] iv, int length, int carry)
protected java.security.spec.AlgorithmParameterSpec	determineNewParameters(byte[] processed, int offset, int length)
protected void	reInit(byte[] processed, int offset, int length)
void	update(byte[] input, int inputOffset, int inputLen)	Performs in-place encryption or decryption on the given data.

Methods inherited from class org.apache.sshd.common.cipher.BaseCipher

createCipherInstance, getAlgorithm, getAuthenticationTagSize, getCipherBlockSize, getCipherInstance, getIVSize, getKdfSize, getKeySize, getTransformation, init, initializeIVData, initializeKeyData, resize, toString, updateAAD

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.sshd.common.cipher.Cipher

update, updateAAD, updateWithAAD

Field Detail

blocksProcessed

private long blocksProcessed

Constructor Detail

BaseCTRCipher

public BaseCTRCipher(int ivsize,
                     int authSize,
                     int kdfSize,
                     java.lang.String algorithm,
                     int keySize,
                     java.lang.String transformation,
                     int blkSize)

Method Detail

update

public void update(byte[] input,
                   int inputOffset,
                   int inputLen)
            throws java.lang.Exception

Description copied from interface: Cipher

Performs in-place encryption or decryption on the given data.

Specified by:

update in interface Cipher

Overrides:

update in class BaseCipher

Parameters:

input - The input/output bytes

inputOffset - The offset of the data in the data buffer

inputLen - The number of bytes to update, starting at the given offset; must be a multiple of the cipher's block size

Throws:

java.lang.Exception - If failed to execute

reInit

protected void reInit(byte[] processed,
                      int offset,
                      int length)
               throws java.security.InvalidKeyException,
                      java.security.InvalidAlgorithmParameterException

Overrides:

reInit in class BaseCipher

Throws:

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

determineNewParameters

protected java.security.spec.AlgorithmParameterSpec determineNewParameters(byte[] processed,
                                                                           int offset,
                                                                           int length)

Overrides:

determineNewParameters in class BaseCipher

addCarry

private void addCarry(byte[] iv,
                      int length,
                      int carry)