SHA-3 in C and x86 assembly [ intro If you're searching for a highly optimized implementation of SHA-3, the source code included here is not suitable since it has been written with instructions which cannot be executed in parallel on x86 CPU. The design of how blocks are processed also slows down computation so I would advise you look at an alternative library. What this code does do is reduce the amount of space required but of course, it could be improved further. Since SHA-3 will be around for many years to come, I will definitely work on improving the code to reduce *size* The code is public domain, feel free to do with as you wish. [ updates May 2015 * simplified buffering/padding in SHA3_Update and SHA3_Final * corrected errors in SHA3_Transform and SHA3_Final pointed out by mpancorbo April 2015 * first release @Odzhan May 2015