C＃简单加密 [英] C# simple encryption

问题描述

我正在学习C＃（作为一个业余爱好者），并试图制定一个简单的加密程序。

从ASCII转换字符是正确的，得到了排序，但这是我被困的转变。如果我想为（n + 3）编码，我应该遵循什么思路？

解决方案

您是否尝试像凯撒密码一样做？ （即采取每一个字母，并向左或向右移一定数量的字母？）

如果是这样，您将需要处理字符串上的单个字符。有一个数据类型char允许这个，你可以做算术运算。要从字符串获取一个字符数组，请调用（string）.ToCharArray（）。然后，您可以遍历字符并移动每个字符。

  char key =（char）3; 
 string toEncrypt =abcdef; 
 char [] cArray = toEncrypt.ToCharArray（）; 
 
 for（var i = 0; i< cArray.Length; i ++）{
 cArray [i] =（char）（cArray [i] + key） 
} 
  

有一件事要记住，你需要包装你的角色，如果他们超过字母表的结尾。我会把这作为你的挑战。 ：）

请记住，虽然这是一种有趣的学习语言的方法，但它在现实世界中对于加密并不是很有用，并且非常容易被破坏。 >

Hi' I'm learning C# (as a hobbyist) and am trying to figure how to write a simple encryption program.

Converting characters from ASCII is fine, got that sorted, but it is the shift I am stuck on. If I want to code for (n + 3) for example, what line of thought should I be following?

解决方案

Are you trying to do something like a Caesar cipher? (i.e. take every letter and shift it a certain number of letters to the left or right?)

If so, you will want to work with individual characters on your string. There's a datatype char that allows this, and you can do arithmetic operations. To get an array of chars from a string, call (string).ToCharArray(). Then you can iterate through the characters and shift each character.

char key = (char)3;
string toEncrypt = "abcdef";
char[] cArray = toEncrypt.ToCharArray();

for (var i = 0; i < cArray.Length; i++) {
   cArray[i] = (char)(cArray[i] + key);
}

One thing to keep in mind is that you'll need to "wrap" your characters if they go past the end of the alphabet. I'll leave this as a challenge to you. :)

Keep in mind that while this is a fun way to learn the language, it's not useful in the real world for encryption and is extremely easily broken.

这篇关于C＃简单加密的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！