org.h2.security

类 XTEA

java.lang.Object

org.h2.security.XTEA

所有已实现的接口:

BlockCipher

public class XTEA
extends Object
implements BlockCipher

An implementation of the XTEA block cipher algorithm.

This implementation uses 32 rounds. The best attack reported as of 2009 is 36 rounds (Wikipedia).

字段概要

从接口继承的字段 org.h2.security.BlockCipher

ALIGN

构造器概要

构造器

构造器和说明
XTEA()

方法概要

限定符和类型	方法和说明
void	decrypt(byte[] bytes, int off, int len) Decrypt a number of bytes.
void	encrypt(byte[] bytes, int off, int len) Encrypt a number of bytes.
int	getKeyLength() Get the length of the key in bytes.
void	setKey(byte[] b) Set the encryption key used for encrypting and decrypting.

从类继承的方法 java.lang.Object

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

构造器详细资料

XTEA

public XTEA()

方法详细资料

setKey

public void setKey(byte[] b)

从接口复制的说明: BlockCipher

Set the encryption key used for encrypting and decrypting. The key needs to be 16 bytes long.

指定者:

setKey 在接口中 BlockCipher

参数:

b - the key

encrypt

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

从接口复制的说明: BlockCipher

Encrypt a number of bytes. This is done in-place, that means the bytes are overwritten.

指定者:

encrypt 在接口中 BlockCipher

参数:

bytes - the byte array

off - the start index

len - the number of bytes to encrypt

decrypt

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

从接口复制的说明: BlockCipher

Decrypt a number of bytes. This is done in-place, that means the bytes are overwritten.

指定者:

decrypt 在接口中 BlockCipher

参数:

bytes - the byte array

off - the start index

len - the number of bytes to decrypt

getKeyLength

public int getKeyLength()

从接口复制的说明: BlockCipher

Get the length of the key in bytes.

指定者:

getKeyLength 在接口中 BlockCipher

返回:

the length of the key