title: Fast Cross-Platform C/C++ Hashing Library
body: <p>What's a high performance hashing library that's also cross platform for C/C++. For algorithms such as MD5, SHA1, CRC32 and Adler32. </p>
  
  <p>I initially had the impression that Boost had these, but apparently not (yet).</p>
  
  <p>The most promising one I have found so far is Crypto++, any other suggestions? <a href="http://www.cryptopp.com/" rel="noreferrer">http://www.cryptopp.com/</a> This seems to be quite comprehensive. </p>