title: C++ free encryption libraries
body: <p>So far I've come across <a href="http://botan.randombit.net/" rel="noreferrer">Botan</a> and <a href="http://www.cryptopp.com/" rel="noreferrer">Crypto++</a> which both provide reversible (e.g AES) and non-reversible (e.g SHA) encryption. I wondered if anyone can recommend either, or something else?</p>