import std.digest.md; ubyte[16] buf; auto hash = new WrapperDigest!MD5(); hash.put(cast(ubyte) 0); auto result = hash.finish(buf[]); //The result is now in result (and in buf). If you pass a buffer which is bigger than //necessary, result will have the correct length, but buf will still have it's original //length
The finish function returns the hash value. It takes an optional buffer to copy the data into. If a buffer is passed, it must have a length at least length bytes.