Package org.aoju.bus.crypto

Class Ciphers

java.lang.Object

org.aoju.bus.crypto.Ciphers

All Implemented Interfaces:

org.aoju.bus.core.lang.function.XWrapper<Cipher>

public class Ciphers
extends Object
implements org.aoju.bus.core.lang.function.XWrapper<Cipher>

Cipher包装类，提供初始化模式等额外方法 包装之后可提供自定义或默认的：

• AlgorithmParameterSpec
• SecureRandom

Since:

Java 17+

Author:

Kimi Liu

Constructor Summary

Constructors

Constructor	Description
Ciphers(String algorithm)	构造
Ciphers(Cipher cipher)	构造

Method Summary

Modifier and Type	Method	Description
AlgorithmParameterSpec	getParams()	获取AlgorithmParameterSpec 在某些算法中，需要特别的参数，例如在ECIES中，此处为IESParameterSpec
Cipher	getRaw()	获取被包装的Cipher
Ciphers	initMode(int mode, Key key)	初始化Cipher为加密或者解密模式
Ciphers	setParams(AlgorithmParameterSpec params)	设置 AlgorithmParameterSpec，通常用于加盐或偏移向量
Ciphers	setRandom(SecureRandom random)	设置随机数生成器，可自定义随机数种子

Methods inherited from class java.lang.Object

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

Constructor Details

Ciphers

public Ciphers(String algorithm)

构造

Parameters:

algorithm - 算法名称

Ciphers

public Ciphers(Cipher cipher)

构造

Parameters:

cipher - Cipher

Method Details

getParams

public AlgorithmParameterSpec getParams()

获取AlgorithmParameterSpec 在某些算法中，需要特别的参数，例如在ECIES中，此处为IESParameterSpec

Returns:

AlgorithmParameterSpec

setParams

public Ciphers setParams(AlgorithmParameterSpec params)

设置 AlgorithmParameterSpec，通常用于加盐或偏移向量

Parameters:

params - AlgorithmParameterSpec

Returns:

this

setRandom

public Ciphers setRandom(SecureRandom random)

设置随机数生成器，可自定义随机数种子

Parameters:

random - 随机数生成器，可自定义随机数种子

Returns:

this

getRaw

public Cipher getRaw()

获取被包装的Cipher

Specified by:

getRaw in interface org.aoju.bus.core.lang.function.XWrapper<Cipher>

Returns:

Cipher

initMode

public Ciphers initMode(int mode,
 Key key)
                 throws InvalidKeyException,
InvalidAlgorithmParameterException

初始化Cipher为加密或者解密模式

Parameters:

mode - 模式，见Cipher.ENCRYPT_MODE 或 Cipher.DECRYPT_MODE

key - 密钥

Returns:

this

Throws:

InvalidKeyException - 无效key

InvalidAlgorithmParameterException - 无效算法