Adding AES encryption to VC++ application

Question

Hi,

I created a GUI application in VC++ and now I wanted to do a AES128 encryption to the data, I am writting to it.

Can anyone please let me know how can I do that in VC++.

Answer 1

I recommend using http://www.openssl.org/ there's a guide for using it with vc++ @ http://www.devside.net/guides/windows/openssl

--edit

You should use the latest version from openssl's site instead of the old version in that guide, everything else in the guide applies.

Answer 2

Microsoft provides the CryptoAPI, which is built-in to Windows.

The starting point for the documentation is here:

• http://msdn.microsoft.com/en-us/library/aa380255(v=VS.85).aspx

A general usage overview:

• http://msdn.microsoft.com/en-us/library/ms867086.aspx

Sample programs written in C:

• http://msdn.microsoft.com/en-us/library/aa382016(v=VS.85).aspx

And here is a list of supported algorithms, including AES128:

• http://msdn.microsoft.com/en-us/library/bb931357(VS.85).aspx