该查询涉及在Vb.net 2010中生成和使用一组非对称密钥 [英] The query is regarding generating and using a set of asymmetric keys in Vb.net 2010

问题描述

大家好，



我不熟悉密码学，急需帮助。



*我想基于密码生成一组非对称密钥。

*使用私钥加密字符串以加密文本

*在我的程序中使用公钥解密来自文本文件的密文

*使用解密的信息为我的应用程序的用户授予权利。



请建议输出命令的例子，如果可能的话。



我试过在网上和书中搜索但没有成功。



提前谢谢。

hello all,

I am new to cryptography and need you urgent help.

* I want to generate a set of asymmetric keys based on a password.
* Use Private key to encrypt a string to cipher text
* Use public key in my program to decrypt the cipher text from a text file
* Use the decryped information to give rights to users of my application.

Please suggest the wayout with example of commands, if possible.

I have tried searching on net and in books but no success.

Thanks in advance.

推荐答案

这里解释了所有的想法： http://en.wikipedia.org/wiki/Public-key_cryptography [ ^ ]。请仔细阅读。



由于您希望公开解密密钥，您的数据可以被任何人解密。那么，有什么用？它是这样的：它可以用来保护源文档使用数字签名方案伪造： http://en.wikipedia.org/wiki/Digital_signature [ ^ ]。



反过来，数字签名可用于数字证书：http://en.wikipedia.org/wiki/Digital_certificate [ ^ ]。



使用.NET FCL，已经为您实现了许多加密功能。由于您对非对称算法（以及公钥加密）感兴趣，您可以从这里开始： http://msdn.microsoft.com/en-us/library/system.security.cryptography.asymmetricalgorithm%28v=vs.110%29.aspx [ ^ ]。

-SA

All the ideas are explained here: http://en.wikipedia.org/wiki/Public-key_cryptography[^]. Please read very carefully.

As you want to make the decryption key public, your data can be decrypted by anyone. So, what's the use? Here is what it is: it can be used to protect the source document from faking using the digital signature schemes: http://en.wikipedia.org/wiki/Digital_signature[^].

In turn, digital signatures can be use in digital certificates: http://en.wikipedia.org/wiki/Digital_certificate[^].

With .NET FCL, a lot of encryption stuff is already implemented for you. As you are interested in asymmetric algorithms (and public-key cryptography) in particular, you can start here: http://msdn.microsoft.com/en-us/library/system.security.cryptography.asymmetricalgorithm%28v=vs.110%29.aspx[^].

—SA

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