如何在c＃.net文件创建过程中加密文件中的数据？ [英] How to encrypt data in file during file creation in c# .net?

问题描述

您好，



我想使用c＃加密文件数据，我使用此代码我的文件没有加密。

我的代码： -

FileStream fs1 = new FileStream（D：\\Licence.DAT，FileMode.OpenOrCreate，FileAccess.Write）;

File.SetAttributes （D：\\Licence.DAT，FileAttributes.Encrypted）;

StreamWriter writer = new StreamWriter（fs1）;

writer.Write（Validated Days ：++ txtValidatedDays.Text）;

writer.WriteLine（\ n+MAC地址：++ txtMacAddress.Text）;

writer.Close（）;



MessageBox.Show（许可证生成成功）;



请帮帮我。



先谢谢。



Ankit Agarwal

软件工程师

Hello,

I want to encrypt data of file using c#,I am using this code my file it's not encrypting.
My code:-
FileStream fs1 = new FileStream("D:\\Licence.DAT", FileMode.OpenOrCreate, FileAccess.Write);
File.SetAttributes("D:\\Licence.DAT", FileAttributes.Encrypted);
StreamWriter writer = new StreamWriter(fs1);
writer.Write("Validated Days:" + "" + txtValidatedDays.Text);
writer.WriteLine("\n" + "MAC Address:" + "" + txtMacAddress.Text);
writer.Close();

MessageBox.Show("Licence Generated Successfully");

Please help me.

Thanks in Advance.

Ankit Agarwal
Software Engineer

推荐答案

不加密它：你需要每次敌人比较时都提供一个解密密钥。

相反，使用散列函数并比较输出。

MSDN：SHA512 [ ^ ]



您知道欺骗MAC地址 [ ^ ]，不是吗？

Don't encrypt it: you need to provide a key to decrypt it each time foe comparison.
Instead, use a hashing function and compare the outputs instead.
MSDN: SHA512[^]

And you are aware of just how easy it is to "spoof" a MAC address[^], aren't you?

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