如何多次运行加密程序来加强编码? [英] How do I run an encryption program multiple times to strengthen the encode?
问题描述
public class Codes
{
/ **
*使用存储在
*中的值的键对一条消息进行编码和解码。
* /
public static void main(String [] args)
{
int [] key = {7,6,5,2,8,5,8,6 ,4,1};
整数keyValue;
String encoded =,decoded =;
String message =队列对于编码消息很有用。
队列<整数> encodingQueue = new LinkedList< Integer>();
队列<整数> decodeQueue = new LinkedList< Integer>();
//加载密钥队列
(int scan = 0; scan< key.length; scan ++)
{
encodingQueue.add(key [scan] );
decodeQueue.add(key [scan]);
}
//编码消息
(int scan = 0; scan< message.length(); scan ++)
{
keyValue = encodingQueue.remove();
编码+ =(char)(message.charAt(scan)+ keyValue);
encodingQueue.add(keyValue);
}
System.out.println(Encoded Message:\\\
+ encoded +\\\
);
//解码消息
for(int scan = 0; scan< encoded.length(); scan ++)
{
keyValue = decodeQueue 。去掉();
decode + =(char)(encoded.charAt(scan) - keyValue);
decodeQueue.add(keyValue);
}
System.out.println(解码消息:\\\
+解码);
}
}
现在我收到这个输出:
编码消息:
X {jwmx(gvf'{xgnzt& jpy& jpktlorh 'sju {fokw /
解码的消息:
队列对于编码消息很有用
为了完成这个程序,我需要输出如下:
编码消息1:X {jwmx(gvf'{xgnzt& jpy& jpktlorh'sju {fokw /
编码消息2:_?oyu} 0mzg。?} iv•|,nq?,orsytuvi.yow?kwq {0
编码消息3:f?t {}?8s〜h5 ?? k〜?? 2rr?2tt {〜| {zj5?ty?p?w?1
编码消息4:m?y} y?i< ?? m ??? 8vs?8yv??k??y {?u?}?2
编码消息5:t?〜??? H??jC ?? o ?????????????????$ 3
解码的消息5:m?y} ?? @ y?i&解码消息4:f?t {} 8s〜h5 ?? k〜?? 2rr?2tt {〜| { zj5•ty?p•w•1
解码的消息3:_?oyu} 0mzg。?} iv•|,nq?,orsytuvi.yow?kwq {0
解码的消息2:X {jwmx(gvf'{xgnzt& jpy& jpktlorh'sju {fokw /
解码的消息1:队列对于编码消息是有用的。
我估计为了做到这一点,我需要使用一个循环来运行encode并通过程序解码变量。然而,我无法弄明白如何发生这种情况。
如果您为 encode()
和 decode()
operations:
类代码{
public static void main(String [] args){
...
}
private static String encoding(String plaintext,Queue< Integer> encodingQueue){
...
}
private static String decode(String ciphertext,Queue< Integer> decodeQueue){
...
}
}
帮助?
Here is my code so far. I need to run the encode part of the code 5 times and then decode the encode the same number of times. I figured out how to encode the message but now I can't figure out how to run the "encode" or "decode" variable back through the code to strengthen the ecryption.
public class Codes
{
/**
* Encode and decode a message using a key of values stored in
* a queue.
*/
public static void main(String[] args)
{
int[] key = {7, 6, 5, 2, 8, 5, 8, 6, 4, 1};
Integer keyValue;
String encoded = "", decoded = "";
String message = "Queues are useful for encoding messages.";
Queue<Integer> encodingQueue = new LinkedList<Integer>();
Queue<Integer> decodingQueue = new LinkedList<Integer>();
// load key queues
for (int scan = 0; scan < key.length; scan++)
{
encodingQueue.add(key[scan]);
decodingQueue.add(key[scan]);
}
// encode message
for (int scan = 0; scan < message.length(); scan++)
{
keyValue = encodingQueue.remove();
encoded += (char) (message.charAt(scan) + keyValue);
encodingQueue.add(keyValue);
}
System.out.println ("Encoded Message:\n" + encoded + "\n");
// decode message
for (int scan = 0; scan < encoded.length(); scan++)
{
keyValue = decodingQueue.remove();
decoded += (char) (encoded.charAt(scan) - keyValue);
decodingQueue.add(keyValue);
}
System.out.println ("Decoded Message:\n" + decoded);
}
}
as of right now I am receiving this output:
Encoded Message:
X{jwmx(gvf'{xgnzt&jpy&jpktlorh'sju{fokw/
Decoded Message:
Queues are useful for encoding messages.
In order to complete this program I need the output to look like this:
Encoded Message 1: X{jwmx(gvf'{xgnzt&jpy&jpktlorh'sju{fokw/
Encoded Message 2: _?oyu}0mzg.?}iv•|,nq?,orsytuvi.yow?kwq{0
Encoded Message 3: f?t{}?8s~h5??k~??2rr?2tt{~|{zj5•ty?p•w•1
Encoded Message 4: m?y}??@y?i<??m???8vs?8yv????~k<?y{?u?}?2
Encoded Message 5: t?~•??H•?jC??o???>zt?>~x?????lC?~}?z???3
Decoded Message 5: m?y}??@y?i<??m???8vs?8yv????~k<?y{?u?}?2
Decoded Message 4: f?t{}?8s~h5??k~??2rr?2tt{~|{zj5•ty?p•w•1
Decoded Message 3: _?oyu}0mzg.?}iv•|,nq?,orsytuvi.yow?kwq{0
Decoded Message 2: X{jwmx(gvf'{xgnzt&jpy&jpktlorh'sju{fokw/
Decoded Message 1: Queues are useful for encoding messages.
I estimate that in order to make this happen I need to use a loop to run the "encode" and "decode" variables back through the program. However I cannot figure out how to make that happen.
This will be easier if you use separate functions for the encode()
and decode()
operations:
class Codes {
public static void main(String[] args) {
...
}
private static String encode(String plaintext, Queue<Integer> encodingQueue) {
...
}
private static String decode(String ciphertext, Queue<Integer> decodingQueue) {
...
}
}
Does that help?
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