Module java.base

Package javax.crypto

Class NullCipher

java.lang.Object

javax.crypto.Cipher

javax.crypto.NullCipher

       public class NullCipher extends Cipher
      

NullCipher类是一个提供“身份密码”的类 - 不会转换明文。因此，密文与明文相同。所有初始化方法均不执行，而块大小设置为1字节。

自从:

1.4

Field Summary

Fields declared in class javax.crypto.Cipher

DECRYPT_MODE, ENCRYPT_MODE, PRIVATE_KEY, PUBLIC_KEY, SECRET_KEY, UNWRAP_MODE, WRAP_MODE

Constructor Summary

Constructors

Constructor	Description
NullCipher()	创建一个NullCipher对象。

Method Summary

Methods declared in class javax.crypto.Cipher

doFinal, doFinal, doFinal, doFinal, doFinal, doFinal, doFinal, getAlgorithm, getBlockSize, getExemptionMechanism, getInstance, getInstance, getInstance, getIV, getMaxAllowedKeyLength, getMaxAllowedParameterSpec, getOutputSize, getParameters, getProvider, init, init, init, init, init, init, init, init, toString, unwrap, update, update, update, update, update, updateAAD, updateAAD, updateAAD, wrap

Methods declared in class java.lang.Object

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

Constructor Details

NullCipher

             public NullCipher()
            

创建一个NullCipher对象。