Andrew Poelstra
c6191fded8
ecmult_const: unify endomorphism and non-endomorphism skew cases
...
We now do a skew correction even without the endomorphism optimization,
which costs one additional group addition but unifies a lot of code.
2016-06-30 13:28:47 +00:00
Gregory Maxwell
cfe0ed916a
Fix miscellaneous style nits that irritate overactive static analysis.
...
Also increase consistency with how overflow && zero is tested, and
avoid some mixed declarations and code that GCC wasn't detecting.
2015-09-24 08:42:37 +00:00
Pieter Wuille
dd891e0ed5
Get rid of _t as it is POSIX reserved
2015-09-21 21:03:37 +02:00
Peter Dettman
72ae443afb
Improve perf. of cmov-based table lookup
2015-08-01 10:57:36 -05:00
Andrew Poelstra
92e53fc4c8
Implement endomorphism optimization for secp256k1_ecmult_const
2015-08-01 10:57:36 -05:00
Andrew Poelstra
4401500060
Add constant-time multiply secp256k1_ecmult_const for ECDH
...
Designed with clear separation of the wNAF conversion, precomputation
and exponentiation (since the precomp at least we will probably want
to separate in the API for users who reuse points a lot.
Future work:
- actually separate precomp in the API
- do multiexp rather than single exponentiation
2015-07-31 12:39:09 -05:00
