com.aliyun.encryptionsdk.handler

Class AlgorithmHandler

java.lang.Object

com.aliyun.encryptionsdk.handler.AlgorithmHandler

public class AlgorithmHandler
extends Object

处理加/解密流程并返回结果

Constructor Summary

Constructors

Constructor and Description
AlgorithmHandler(CryptoAlgorithm algorithm, SecretKey keySpec, int mode)

Method Summary

Modifier and Type	Method and Description
byte[]	cipherData(byte[] iv, byte[] contentAad, byte[] content, int off, int len) 使用 Cipher 处理数据
void	cipherInit(byte[] iv)
byte[]	doFinal()
CryptoAlgorithm	getAlgorithm()
byte[]	headerGcmEncrypt(byte[] iv, byte[] contentAad, byte[] content, int off, int len)
byte[]	update(byte[] content, int off, int len)
void	updateAAD(byte[] contentAad)

Methods inherited from class java.lang.Object

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

Constructor Detail

AlgorithmHandler

public AlgorithmHandler(CryptoAlgorithm algorithm,
                        SecretKey keySpec,
                        int mode)

Method Detail

getAlgorithm

public CryptoAlgorithm getAlgorithm()

cipherInit

public void cipherInit(byte[] iv)

cipherData

public byte[] cipherData(byte[] iv,
                         byte[] contentAad,
                         byte[] content,
                         int off,
                         int len)

使用 Cipher 处理数据

Parameters:

iv - 随机向量

contentAad - 身份验证数据

content - 需要处理的数据

off - 需要处理数据的偏移量

len - 需要处理数据的长度

Returns:

处理完成后的数据

updateAAD

public void updateAAD(byte[] contentAad)

update

public byte[] update(byte[] content,
                     int off,
                     int len)

doFinal

public byte[] doFinal()

headerGcmEncrypt

public byte[] headerGcmEncrypt(byte[] iv,
                               byte[] contentAad,
                               byte[] content,
                               int off,
                               int len)