cn.hutool.crypto.digest.mac

Class BCMacEngine

java.lang.Object

cn.hutool.crypto.digest.mac.BCMacEngine

All Implemented Interfaces:

MacEngine

Direct Known Subclasses:

BCHMacEngine, CBCBlockCipherMacEngine

public class BCMacEngine
extends Object
implements MacEngine

BouncyCastle的MAC算法实现引擎，使用Mac 实现摘要
当引入BouncyCastle库时自动使用其作为Provider

Since:

5.8.0

Author:

Looly

Constructor Summary

Constructors

Constructor and Description
BCMacEngine(org.bouncycastle.crypto.Mac mac, org.bouncycastle.crypto.CipherParameters params) 构造

Method Summary

Modifier and Type	Method and Description
byte[]	doFinal() 结束并生成摘要
String	getAlgorithm() 获取当前算法
org.bouncycastle.crypto.Mac	getMac() 获得 Mac
int	getMacLength() 获取MAC算法块大小
BCMacEngine	init(org.bouncycastle.crypto.Mac mac, org.bouncycastle.crypto.CipherParameters params) 初始化
void	reset() 重置
void	update(byte[] in, int inOff, int len) 加入需要被摘要的内容

Methods inherited from class java.lang.Object

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

Methods inherited from interface cn.hutool.crypto.digest.mac.MacEngine

digest, update

Constructor Detail

BCMacEngine

public BCMacEngine(org.bouncycastle.crypto.Mac mac,
                   org.bouncycastle.crypto.CipherParameters params)

构造

Parameters:

mac - Mac

params - 参数，例如密钥可以用KeyParameter

Since:

5.8.0

Method Detail

init

public BCMacEngine init(org.bouncycastle.crypto.Mac mac,
                        org.bouncycastle.crypto.CipherParameters params)

初始化

Parameters:

mac - 摘要算法

params - 参数，例如密钥可以用KeyParameter

Returns:

this

Since:

5.8.0

getMac

public org.bouncycastle.crypto.Mac getMac()

获得 Mac

Returns:

Mac

update

public void update(byte[] in,
                   int inOff,
                   int len)

Description copied from interface: MacEngine

加入需要被摘要的内容

Specified by:

update in interface MacEngine

Parameters:

in - 内容

inOff - 内容起始位置

len - 内容长度

doFinal

public byte[] doFinal()

Description copied from interface: MacEngine

结束并生成摘要

Specified by:

doFinal in interface MacEngine

Returns:

摘要内容

reset

public void reset()

Description copied from interface: MacEngine

重置

Specified by:

reset in interface MacEngine

getMacLength

public int getMacLength()

Description copied from interface: MacEngine

获取MAC算法块大小

Specified by:

getMacLength in interface MacEngine

Returns:

MAC算法块大小

getAlgorithm

public String getAlgorithm()

Description copied from interface: MacEngine

获取当前算法

Specified by:

getAlgorithm in interface MacEngine

Returns:

算法