cn.hutool.crypto.digest.mac

Class DefaultHMacEngine

java.lang.Object

cn.hutool.crypto.digest.mac.DefaultHMacEngine

All Implemented Interfaces:

MacEngine

public class DefaultHMacEngine
extends Object
implements MacEngine

默认的HMAC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:

4.5.13

Author:

Looly

Constructor Summary

Constructors

Constructor and Description
DefaultHMacEngine(String algorithm, byte[] key) 构造
DefaultHMacEngine(String algorithm, Key key) 构造
DefaultHMacEngine(String algorithm, Key key, AlgorithmParameterSpec spec) 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
Mac	getMac() 获得 Mac
int	getMacLength() 获取MAC算法块大小
DefaultHMacEngine	init(String algorithm, byte[] key) 初始化
DefaultHMacEngine	init(String algorithm, Key key) 初始化
DefaultHMacEngine	init(String algorithm, Key key, AlgorithmParameterSpec spec) 初始化
void	reset() 重置
void	update(byte[] in) 加入需要被摘要的内容
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

Constructor Detail

DefaultHMacEngine

public DefaultHMacEngine(String algorithm,
                         byte[] key)

构造

Parameters:

algorithm - 算法

key - 密钥

Since:

4.5.13

DefaultHMacEngine

public DefaultHMacEngine(String algorithm,
                         Key key)

构造

Parameters:

algorithm - 算法

key - 密钥

Since:

4.5.13

DefaultHMacEngine

public DefaultHMacEngine(String algorithm,
                         Key key,
                         AlgorithmParameterSpec spec)

构造

Parameters:

algorithm - 算法

key - 密钥

spec - AlgorithmParameterSpec

Since:

5.7.12

Method Detail

init

public DefaultHMacEngine init(String algorithm,
                              byte[] key)

初始化

Parameters:

algorithm - 算法

key - 密钥

Returns:

this

init

public DefaultHMacEngine init(String algorithm,
                              Key key)

初始化

Parameters:

algorithm - 算法

key - 密钥 SecretKey

Returns:

this

Throws:

CryptoException - Cause by IOException

init

public DefaultHMacEngine init(String algorithm,
                              Key key,
                              AlgorithmParameterSpec spec)

初始化

Parameters:

algorithm - 算法

key - 密钥 SecretKey

spec - AlgorithmParameterSpec

Returns:

this

Throws:

CryptoException - Cause by IOException

Since:

5.7.12

getMac

public Mac getMac()

获得 Mac

Returns:

Mac

update

public void update(byte[] in)

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

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