I want to encrypt my 128 bit string using AES encryption. example

128 bit string = "A#$RFDE%t^&jhy*i"

with 128 bit key = "CDF$#%Tgfvb^%&$C"

http://www.cryptopp.com/

Is here any help to encryption. I gone through crypto++ library. But it seem tough to understand.

Did you scroll down far enough to find the link to this? Somewhere in there is probably some help as far as how to use the library....