encrypt- decrypt with AES using C/C++

Question

Hi! How can I encrypt decrypt a file with a 256 key AES in c or c++? Which library do you suggest? Thank you!

Answer 1

Check out libcrypto. You can find an example of it here.

Answer 2

If you are just after AES and do not mind losing flexibility (i.e. you will not replace it with another cryptographic algorithm at some time) then Brian Gladman's AES implementation is a popular choice (both for performance and portability). This is the kind of code which you embed in your own source code.

On the external libraries front, you have plenty of choice, including NSS, OpenSSL, Crypto++... the latter is specifically designed for C++, while the two others are meant for C.

Answer 3

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