com.objectwave.crypto
Class SquareCfb

java.lang.Object
  |
  +--com.objectwave.crypto.SquareCfb

All Implemented Interfaces:

SquareMode

public final class SquareCfb

extends java.lang.Object

implements SquareMode

Cipher feedback (CFB) support for the Square block cipher.

Author:

Public domain implementation by Paulo Barreto Version 2.1 (1997.08.11) ============================================================================= Differences from version 2.0 (1997.07.28) -- Fixed the decryption method (offsets were sometimes wrong). ============================================================================= THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Constructor Summary

SquareCfb()

Method Summary

void	decrypt(byte[] buf, int off, int len)
void	encrypt(byte[] buf, int off, int len)
protected void	finalize()
void	setIV(byte[] iv)
void	setKey(byte[] key)

Methods inherited from class java.lang.Object

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

Constructor Detail

SquareCfb

public SquareCfb()

Method Detail

setKey

public final void setKey(byte[] key)

Specified by:

setKey in interface SquareMode

setIV

public final void setIV(byte[] iv)

Specified by:

setIV in interface SquareMode

encrypt

public final void encrypt(byte[] buf,
                          int off,
                          int len)

Specified by:

encrypt in interface SquareMode

decrypt

public final void decrypt(byte[] buf,
                          int off,
                          int len)

Specified by:

decrypt in interface SquareMode

finalize

protected final void finalize()
                       throws java.lang.Throwable

Overrides:

finalize in class java.lang.Object

java.lang.Throwable