输出结果相同 [英] The output gives the same result

问题描述

我试图运行此代码，但它提供相同的输出：我要做的是要求用户输入要加密的文本。然后输入他想要用来加密128,192或256的密钥。但是当我输入任何东西时测试它会给出相同的输出:(这是我试图调用的方法

  package  test; 
 
  public   class  MARS {
  public   static   byte  [] encrypt（ byte  [] in， byte  [] key）{
 K = expandKey（key）; 
  int  lenght = 0 ; 
  byte  [] padding =  new   byte  [ 1 ]; 
  int  i; 
 lenght = < span class =code-digit> 16   -  in.length％ 16 ; 
 padding =  new   byte  [lenght]; 
 padding [ 0 ] =（ byte ）0x80; 
 
  for （i =  1 ; i< lenght; i ++）
 padding [i] =  0 ; 
 
  byte  [] tmp =  new   byte  [in.length + lenght]; 
  byte  [] bloc =  new   byte  [ 16 ]; 
 
  int  count =  0 ; 
 
  for （i =  0 ; i< in.length + lenght ; i ++）{
  if （i>  0 && i％ 16  ==  0 ）{
 bloc = encryptBloc（bloc）; 
 System.arraycopy（bloc， 0 ，tmp，i  -   16 ，bloc.length） ; 
} 
  if （i< in.length）
 bloc [i％ 16 ] = in [i]; 
  else  {
 bloc [i％ 16 ] = padding [count％< span class =code-digit> 16 ]; 
 count ++; 
} 
} 
 如果（bloc.length ==  16  ）{
 bloc = encryptBloc（bloc）; 
 System.arraycopy（bloc， 0 ，tmp，i  -   16 ，bloc.length） ; 
} 
 
  return  tmp; 
} 
} 

这是调用方法的类别/>

  package  test; 
  import  java.io.BufferedReader; 
  import  java.io.InputStreamReader; 
 
  public   class 致电{
  public   static   void  main（ String  [] args） throws 异常{
  byte  [] array =  要加密 .getBytes（）; 
  byte  [] key =  密钥你想用 .getBytes（）; 
  byte  [] encryptBloc = MARS.encrypt（array，key）; 
 BufferedReader userInput =  new  BufferedReader（ new  InputStreamReader（System.in））; 
  String  plainText = userInput.readLine（）; 
 System.out.println（ 输入要加密的文本： + plainText ）; 
 
 BufferedReader ke =  new  BufferedReader（ new  InputStreamReader（System.in）） ; 
  String  kee = userInput.readLine（）; 
 System.out.println（ 输入您要用来加密此消息的密钥： +  new   String （key））; 
 System.out.println（ 纯文本： + plainText）; 
 System.out.println（ 加密文本： +  new   String （encryptBloc））; 
} 
} 

我的尝试：



尝试读取用户输入：（

解决方案

 BufferedReader userInput = new BufferedReader（new InputStreamReader） （System.in））; 
 System.out.println（输入要加密的文本：）; 
 String plainText = userInput.readLine（）; 
 System.out。 println（输入密钥：）; 
 String key = userInput.readLine（）; 
 byte [] encrypted = MARS.encrypt（plainText.getBytes（），key.getBytes（））
 System.out.println（纯文本：+ plainText）; 
 System.out.println（加密文本：+新字符串（加密））; 

Im trying to run this code but it gives the same output: What I’m trying to do is that ask the user to enter text to be encrypted. Then enter the key he wants to use to encrypt either 128, 192, or 256. But when I test it whenever I enter anything it gives the same output :( this is the method i'm trying to call

package test;

public class MARS {
    public static byte[] encrypt(byte[] in,byte[] key){
        K = expandKey(key);
        int lenght=0;
        byte[] padding = new byte[1];
        int i;
        lenght = 16 - in.length % 16;
        padding = new byte[lenght];
        padding[0] = (byte) 0x80;

        for (i = 1; i < lenght; i++)
            padding[i] = 0;

        byte[] tmp = new byte[in.length + lenght];
        byte[] bloc = new byte[16];

        int count = 0;

        for (i = 0; i < in.length + lenght; i++) {
            if (i > 0 && i % 16 == 0) {
                bloc = encryptBloc(bloc);
                System.arraycopy(bloc, 0, tmp, i - 16, bloc.length);
            }
            if (i < in.length)
                bloc[i % 16] = in[i];
            else{
                bloc[i % 16] = padding[count % 16];
                count++;
            }
        }
        if(bloc.length == 16){
            bloc = encryptBloc(bloc);
            System.arraycopy(bloc, 0, tmp, i - 16, bloc.length);
        }

        return tmp;
    }
}

this is the class of calling method

package test;
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Call {
    public static void main(String[] args) throws Exception {
        byte[] array = "going to encrypt".getBytes();
        byte[] key = "the key you want to use".getBytes();
        byte[] encryptBloc = MARS.encrypt(array,key);
        BufferedReader userInput = new BufferedReader(new InputStreamReader(System.in));
        String plainText = userInput.readLine();
        System.out.println("Enter Text that you want to Encrypt: " + plainText);

        BufferedReader ke = new BufferedReader(new InputStreamReader(System.in));
        String kee = userInput.readLine();
        System.out.println("Enter The Key you want to use to encrypt this message: " + new String(key));
        System.out.println("plain Text: "+ plainText);
        System.out.println("Encrypted Text: " + new String(encryptBloc));
    }
}

What I have tried:

tried to read the user input :(

解决方案

BufferedReader userInput = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter Text that you want to encrypt:");
String plainText = userInput.readLine();
System.out.println("Enter the key:");
String key = userInput.readLine();
byte[] encrypted = MARS.encrypt(plainText.getBytes(), key.getBytes())
System.out.println("Plain text: " + plainText);
System.out.println("Encrypted Text: " + new String(encrypted));

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