When evaluating what crypto library to use for the public-key encryption filter for Skylable SX (which is under development) I came across TweetNaCl. TweetNaCl is a public-domain cryptographic library that provides the same cryptographic primitives as NaCl: public-key authenticated encryption, signatures, and secret-key authenticated encryption. NaCl’s core team is part of the team that developed TweetNaCl.
more here...........http://blog.skylable.com/2014/05/tweetnacl-carrybit-bug/
more here...........http://blog.skylable.com/2014/05/tweetnacl-carrybit-bug/