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Encrypted string From Delphi to C#

I have one question,

what is the best solution to encrypt communication between two systems, one is developed in Delphi and one is developed in c#. I already tried that and had some problems, all is in this question but i did`t find solution.

Anyone can help?

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    You should answer the questions posed in the first answer to that other question. If you answer those you'll likely find the problem. Commented Apr 27, 2011 at 11:18
  • 1
    What exactly did you already try? Commented Apr 27, 2011 at 11:26
  • 1
    As it stands, this is a "close - exact duplicate" candidate. Commented Apr 27, 2011 at 13:41

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Cryptography API: Next Generation (CNG) http://msdn.microsoft.com/de-de/library/aa376210.aspx

CNG is supported beginning with Windows Server 2008 and Windows Vista. As this is WINAPI it should easily work with Delphi, and for .NET there exists wrapper classes.

http://msdn.microsoft.com/en-us/magazine/cc163441.aspx

another Option is to create a COM Wrapper for your C# code. (maybe a bit less secure)

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you could also use Indy... indyproject.org/index.html
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I think you can solve this by using HttpListener in .net app(old post how to enable ssl), in such way you would get communication based on http protocol.
On top of that you can use additional layers:
a) OpenRasta, lightweight RESTful library
b) Self hosted WCF

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