pureMD5 is an MD5 hash routine written purely in Haskell using ByteStrings for efficiency. Source code is available from hackage  and from the repository 
2 Future Work
- Performance can always stand to be improved
- The length of the block is checked way too often, look at this first.
- If someone wanted to sweat blood, improving a general compiler to a point where the rolled version were as fast as the unrolled version is would be a great feat.
Categories: Libraries | Packages