Hey, Alex! Thanks for the response! I've been using the ECDH API for the scalar multiplication, but my last remaining need is for `BN_mod_inverse` and I can't seem to find anything on that quite yet. No pointers here, I guess?
Thanks! -John On Fri, Dec 1, 2017 at 3:24 PM, Alex Gaynor <alex.gay...@gmail.com> wrote: > Hi John, > > We don't have an API for doing raw EC point arithmetic. https://github. > com/pyca/cryptography/pull/2919 is an issue proposing (and implementing) > it, but I've been very hesitant to expand the API like this. > > Point multiplication can be accomplished with the ECDH API. > > Alex > > On Fri, Dec 1, 2017 at 2:47 PM, John Pacific <m...@johnpacific.com> wrote: > >> Hey, folks! >> >> I'm working on prototyping this cryptosystem using cryptography. I'm >> porting it from Charm-crypto in Python to this. >> >> Charm crypto overrides some operators to perform scalar multiplication >> and modular inverses -- ie: `*` and `~`. When these operators are used with >> an EC element, it performs the overriden operation. >> >> I am now in the need to perform some similar operations within the >> context of cryptography.io and I can't seem to find a great way to do >> this. >> >> I can access some OpenSSL functions like `EC_POINT_mul` and >> `BN_mod_inverse` via `default_backend()._lib.EC_POINT_mul`, etc but I >> can't find any documentation of how this is used within the context of >> cryptography.io. >> >> Do any of you wonderful folks have any pointers on this or maybe how to >> perform some point arithmetic with the cryptography objects? >> >> >> Thanks, >> >> tux >> >> _______________________________________________ >> Cryptography-dev mailing list >> Cryptography-dev@python.org >> https://mail.python.org/mailman/listinfo/cryptography-dev >> >> > > > -- > "I disapprove of what you say, but I will defend to the death your right > to say it." -- Evelyn Beatrice Hall (summarizing Voltaire) > "The people's good is the highest law." -- Cicero > GPG Key fingerprint: D1B3 ADC0 E023 8CA6 > > > _______________________________________________ > Cryptography-dev mailing list > Cryptography-dev@python.org > https://mail.python.org/mailman/listinfo/cryptography-dev > >
_______________________________________________ Cryptography-dev mailing list Cryptography-dev@python.org https://mail.python.org/mailman/listinfo/cryptography-dev
