s2n-bignum s2n-bignum is a collection of integer arithmetic routines designed for cryptographic applications. All routines are written in pure machine code, designed to be callable from C and other high-level languages, with separate but API-compatible versions of each function for 64-bit x86 (x86_64) and ARM (aarch64). s2n-bignum's primary goals are performance and assurance: Assembly routines are tuned for highest performance both by hand and using automatic optimization techniques such as the...