DISCONTINUED: Please check out ristretto-donna instead if you are looking for a Ristretto C library
libristretto255 
Experimental C implementation of Ristretto255, a prime order elliptic curve group created by applying the Decaf approach to cofactor elimination to Curve25519 (RFC 7748).
libristretto255 is based off of the libdecaf library by Mike Hamburg. For more information on Ristretto, please see the Ristretto web site:
Status
This library is in an extremely early stage of development and is not ready to be used yet. Check back later for updates.
Known Issues
Travis CI
- #24: Sporadic SEGV on Travis C with clang when running
ristretto_gen_tables. This has been worked-around by enabling ASAN, but is probably indicative of deeper problems.
License
Copyright (c) 2014-2018 Ristretto Developers (AUTHORS.md), Cryptography Research, Inc (a division of Rambus).
Distributed under the MIT License. See LICENSE.txt for more information.