org.aoju.bus.crypto.digest.mac

Class DefaultHMacEngine

java.lang.Object

org.aoju.bus.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:

JDK 1.8+

Version:

5.6.5

Author:

Kimi Liu

Constructor Summary

Constructors

Constructor and Description
DefaultHMacEngine(String algorithm, byte[] key) 构造
DefaultHMacEngine(String algorithm, SecretKey key) 构造

Method Summary

Modifier and Type	Method and Description
byte[]	digest(InputStream data, int bufferLength) 生成摘要
Mac	getMac() 获得 Mac
DefaultHMacEngine	init(String algorithm, byte[] key) 初始化
DefaultHMacEngine	init(String algorithm, SecretKey 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

DefaultHMacEngine

public DefaultHMacEngine(String algorithm,
                         SecretKey key)

构造

Parameters:

algorithm - 算法

key - 密钥

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,
                              SecretKey key)

初始化

Parameters:

algorithm - 算法

key - 密钥 SecretKey

Returns:

this

Throws:

org.aoju.bus.core.lang.exception.InstrumentException - 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 IoUtils.DEFAULT_BUFFER_SIZE 做为默认值

Returns:

摘要bytes

getMac

public Mac getMac()

获得 Mac

Returns:

Mac