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

Method Summary

Modifier and Type	Method and Description
byte[]	digest(InputStream data, int bufferLength) 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

Methods inherited from class java.lang.Object

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

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

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

digest

public byte[] digest(InputStream data,
                     int bufferLength)

Description copied from interface: MacEngine

生成摘要

Specified by:

digest in interface MacEngine

Parameters:

data - InputStream 数据流

bufferLength - 缓存长度，不足1使用 NioUtil.DEFAULT_BUFFER_SIZE 做为默认值

Returns:

摘要bytes

getMac

public Mac getMac()

获得 Mac

Returns:

Mac

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