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79 commits

Author SHA1 Message Date
Sean Bowe
83e2656c3e Introduce Curve::hasher abstraction. 2021-02-19 15:52:11 +00:00
Sean Bowe
68a7a19d3b Move hashtocurve module into pasta module. 2021-02-19 15:52:11 +00:00
Sean Bowe
b134a73ef5 Hardcode isogeny constants and constants for hash to curve. 2021-02-19 15:52:11 +00:00
Sean Bowe
5b33ff9cab Consolidate the hashtocurve module traits into a single structure. 2021-02-19 15:52:11 +00:00
Sean Bowe
e4e8aef5b6 Simplify HashToCurve trait. 2021-02-19 15:52:11 +00:00
Daira Hopwood
db11c47045 Apply suggestions from code review 
Co-authored-by: ying tong <yingtong@z.cash>
 2021-02-19 15:52:11 +00:00
Daira Hopwood
fa3afc29bb Add an implementation of simplified SWU hash-to-curve. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-02-19 15:52:11 +00:00
Sean Bowe
dfa7d96fa9
Refactor verification key hashing logic to use Display impls. 2021-02-17 15:19:34 -07:00
therealyingtong
e0f9fe1dcf Clippy fixes + address review comments 
Co-authored-by: Jack Grigg <jack@electriccoin.co>
 2021-01-24 08:07:30 +08:00
Sean Bowe
a0d7998785 Add implementations of read/write to CurveAffine and FieldExt. 2021-01-24 08:05:58 +08:00
Daira Hopwood
c7a12ee178
Add documentation of perfect hash parameters. 2021-01-17 02:24:09 +00:00
Daira Hopwood
adc3c9c2ea
Fix incorrect variable name in a comment. 
Co-authored-by: str4d <thestr4d@gmail.com>
 2021-01-17 01:52:49 +00:00
Daira Hopwood
c5e48fdd06 Address @ebfull's review comments. 
Co-authored-by: Sean Bowe <sean@electriccoin.co>
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-01-14 02:34:43 +00:00
Daira Hopwood
af9834d68c Implement sqrt_alt, a more efficient way of doing sqrt_ratio(num, one()). 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-01-14 02:34:43 +00:00
Daira Hopwood
806748fbc4 Use addition chains for powering by (T-1)/2. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-01-14 02:34:43 +00:00
Daira Hopwood
227025b7b3 Avoid exposing implementation details of the square root implementation. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-01-14 02:34:43 +00:00
Daira Hopwood
e13ee2c8ff Add sqrt_ratio implementation. 
Co-authored-by: Jack Grigg <jack@electriccoin.co>
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-01-14 02:34:43 +00:00
Sean Bowe
f308eb969c
Remove deterministic square root calculation as it's no longer needed. 2021-01-12 07:40:26 -07:00
Sean Bowe
dff5a3a692
Generate the URS using a homebrew mixture of blake2b and try-and-increment. 2021-01-06 10:45:11 -07:00
Jack Grigg
cdbc41148a Migrate to ff traits 
The `Field` trait in this crate is now `FieldExt: ff::PrimeField`.
 2020-12-01 20:55:03 +00:00
Jack Grigg
3407d13e4b Move curves and fields into tweedle module 2020-11-12 21:36:59 +00:00
Jack Grigg
f4c15760f2 Use explicit trait paths in arithmetic macros 2020-11-12 19:38:27 +00:00
ying tong
6f6378b2ea More idiomatic implementation of Ord for Field 
Co-authored-by: str4d <jack@z.cash>
 2020-10-14 00:35:36 +08:00
therealyingtong
1e21c08acd Implement Ord and PartialOrd for Field 2020-10-14 00:35:25 +08:00
ebfull
7250ac8252
Merge pull request #4 from zcash/permutation 
Permutation
 2020-09-07 12:24:31 -06:00
Dimitris Apostolou
c0444f8c31
Fix typos 2020-09-01 20:45:20 +03:00
Sean Bowe
c427795bf5
Reverse endianness of delta constants 2020-08-31 10:10:05 -06:00
therealyingtong
4f8570db95
Add DELTA generator of t-order multiplicative subgroup to Fp, Fq 2020-08-29 13:51:42 +08:00
Sean Bowe
dd1ad9f114
Initial commit 2020-08-22 14:15:39 -06:00