yeah it's only for the cryptography... signatures, hash functions. a lot of stuff SIMD or fast pure C it's worth having them available if they are found i think. when i used btcec to derive pubkeys to get this key i have now, it took over 3 days. now i can generate a -mleku key in about 5 minutes max, by using the libsecp256k1. so, anyhow, as far as that goes, i've got the crypto sorted out to be as fast as possible because verifying events especially is a huge part of the time spent processing