如何在IOS上加密字符串并在Windows中解密？

Question

I would like to encrypt a string (password) on:

• an iOS device (in Objective C)
• an Android device (in Java)
• a Windows phone (in C#)

...and then send that string via http to a Windows Server that will decrypt it (in C#).

Is there some utility / library / encryption engine that is capable of doing such a task?

Would you provide sample code for:

• iOS device (in Objective C)
• Android device (in Java)

Thanks

Answer 1

If you use a standard encryption algorithm (such as AES256), and all platforms have the appropriate keys, then this shouldn't be a problem.

Consider using CommonCrypto on iOS

Example on Android

And System.Security.Cryptography on Windows Phone / Windows Server

However, what is the problem you are trying to solve? If you want to encrypt data in transit, why not use HTTPS with an SSL certificate?