jodd.joy.crypt

Class BlockCipher

java.lang.Object

jodd.joy.crypt.BlockCipher

Direct Known Subclasses:

Threefish

public abstract class BlockCipher
extends java.lang.Object

Generic block chipher.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	blockSizeInBytes
protected static byte	TERMINATOR

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BlockCipher(int blockSize)

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	decrypt(byte[] encryptedContent) Decrypts the whole content, block by block.
protected abstract byte[]	decryptBlock(byte[] encryptedContent, int offset) Decrypts single block of encrypted content.
byte[]	encrypt(byte[] content) Encrypts complete content, block by block.
protected abstract byte[]	encryptBlock(byte[] content, int offset) Encrypts single block of plain content.

Methods inherited from class java.lang.Object

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

Field Detail

TERMINATOR

protected static final byte TERMINATOR

See Also:

Constant Field Values

blockSizeInBytes

protected final int blockSizeInBytes

Constructor Detail

BlockCipher

protected BlockCipher(int blockSize)

Method Detail

encryptBlock

protected abstract byte[] encryptBlock(byte[] content,
                  int offset)

Encrypts single block of plain content. It ensures that there is always a block size amount of data.

decryptBlock

protected abstract byte[] decryptBlock(byte[] encryptedContent,
                  int offset)

Decrypts single block of encrypted content.

encrypt

public byte[] encrypt(byte[] content)

Encrypts complete content, block by block.

decrypt

public byte[] decrypt(byte[] encryptedContent)

Decrypts the whole content, block by block.