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74 Commits

Author SHA1 Message Date
Jack Grigg
c597db59a6 ff: Rename PrimeField::into_repr -> PrimeField::to_repr 2020-05-02 18:55:13 +12:00
Jack Grigg
15e229509a ff: Move pow_vartime back into Field trait 
The only places we don't use constant u64 limbs, we use PrimeField::char
instead (except in a single test where we use a field element).
 2020-05-02 18:54:02 +12:00
Jack Grigg
fb31d09218 ff: Remove Ord bound from PrimeField 
ff_derive still implements Ord and PartialOrd for the fields it
implements, because pairing::bls12_381 internally assumes that those are
implemented. Once we delete that implementation, we will remove the Ord
and PartialOrd implementations from ff_derive.
 2020-05-02 18:54:02 +12:00
Jack Grigg
38f87c2e73 ff: Add PrimeField::ReprEndianness associated type 
This enables generic code to reliably operate on the bits of an encoded
field element, by converting them to and from a known (little)
endianness.

The BitAnd and Shr bounds on PrimeField are now removed, as users can
perform these operations themselves as needed.
 2020-05-02 18:54:02 +12:00
Jack Grigg
55568b4d6e ff: Remove frobenius_map from Field trait 
It is only used internally in the bls12_381 crate, and field extensions
aren't exposed anywhere in the Zcash stack.
 2020-05-02 16:07:48 +12:00
Jack Grigg
1761ebfb35 ff: Remove SqrtField trait 
The sqrt() function is now part of the Field trait. ff_derive returns an
error on fields for which it does not support generating a square root
function.

Note that Fq6 and Fq12 in pairing::bls12_381 leave the function
unimplemented. They will be dropped once the migration to the bls12_381
crate is complete. The equivalent structs in that crate are not exposed.
 2020-05-02 16:07:48 +12:00
Jack Grigg
49f119fb03 ff: Remove PrimeFieldRepr trait 
The ff::PrimeField::Repr associated type now has the minimal necessary
bounds, which can be satisfied by a newtype around a byte array.
 2020-04-23 18:15:14 +12:00
Jack Grigg
1fe3e3784c ff: Add Ord bound to PrimeField 2020-04-23 17:31:33 +12:00
Jack Grigg
08500ee712 ff: PrimeField: BitAnd<u64, Output = u64> + Shr<u32, Output = Self> 2020-04-23 16:23:24 +12:00
Jack Grigg
1fdca393bb ff: PrimeField::{is_even, is_odd} 2020-04-23 16:23:24 +12:00
Jack Grigg
232f0a50b8 ff: Rework BitIterator to work with both u8 and u64 limb sizes 
This enables BitIterator to be used with both the byte encoding and limb
representation of scalars.
 2020-04-23 16:23:24 +12:00
Jack Grigg
fd79de5408 ff: Add PrimeField: From<u64> constraint 2020-04-23 16:23:24 +12:00
Jack Grigg
b6457a905b ff: Move pow_vartime into a trait that is generic over the limb size 
The trait is implemented by default for u8 and u64, allowing pow_vartime
to be used with both the byte encoding and limb representation of field
elements.
 2020-03-28 00:27:59 +13:00
Jack Grigg
69c60530d4 group: Rewrite wNAF to remove dependency on ff::PrimeFieldRepr 
Adapted from Scalar::non_adjacent_form in curve25519-dalek.
 2020-03-26 22:32:17 +13:00
Jack Grigg
6e53cf3c4c group: Take scalar by reference in CurveProjective::recommended_wnaf_for_scalar 2020-03-26 19:00:46 +13:00
Jack Grigg
2df2a2b2f2 Merge branch 'develop' 2020-03-14 10:36:58 +13:00
Sean Bowe
100878cd14
Version bump of all crates (except librustzcash) 2020-03-12 15:59:19 -06:00
Sean Bowe
f3f8964001
Remove Sized for RngCore 
Co-authored-by: Weiliang Li <to.be.impressive@gmail.com>
 2020-03-12 15:32:44 -06:00
Sean Bowe
b52e4aac3a
Fix Field::random method declarations. 2020-03-03 17:47:29 -07:00
Sean Bowe
c49aaceb5d
Merge commit 'f337eb1f5c67d9305b1fb4fb35507bb50817259b' into depends-updates-2 2020-03-03 17:46:59 -07:00
Sean Bowe
f337eb1f5c Squashed 'bellman/' changes from 4272cfa..2279da4 
2279da4 Merge pull request #38 from debris/docs
2e57190 Remove documentation entry from Cargo.toml
346d540 bellman 0.2.0
8d79665 Merge pull request #93 from defuse/qed-it-lrz
f50079f Crate docs
701cb2b Update READMEs
ccf1ee9 CI: Check intra-doc links
ddd390a Add READMEs to Cargo.toml files
54d3122 Add missing cs.is_satisfied() to bellman test
52bf23c Fix build warnings
581ad35 boolean: adds tests for alloc_conditionally
0403396 blake2s: adds test vectors from go-jubjub
9f24e47 Fix blake2s test data length assertion.
42d5b3b Add blake2s test vectors for varying sizes from go-jubjub
b2597de pedersen_hash: removes debug prints
c903fad pedersen hashes: example of size limit bug
bc697c1 bellman: Fix compile errors without multicore feature
a4e5df9 Upgrade to hex-literal 0.2
c063509 Migrate bellman to crossbeam 0.7
1775843 Take self directly in into_* functions
614d784 Rename into_ -> to_ where &self is used.
08664b1 Address various clippy warnings/errors in bellman
bb11ef2 cargo fmt
cff2e2f cargo fix --edition-idioms for bellman
dc2a280 Add edition = 2018
1a2bc19 cargo fmt
ad37878 cargo fix --edition for bellman
e73d1a2 cargo fmt bellman
dfb86fc Move generic circuit gadgets into bellman
9b3d766 Migrate to rand 0.7
055280f Migrate ff, group, pairing, and bellman to rand 0.6
533d586 Migrate bellman to rand 0.5
bfa9aaf Merge pull request #61 from rex4539/fix-typos
3dd8490 Place bellman multicore operations behind a (default) feature flag
955e679 Merge pull request #46 from str4d/ff-traits
d4ddaa9 Fix typos
12f93f2 Add ff and group crates to Cargo workspace
2e35a32 Update sapling-crypto crate to use ff crate
2019e63 Update workspace after pulling in external crates

git-subtree-dir: bellman
git-subtree-split: 2279da422ca9d7b83e84cb85018c713976b873e5
 2020-03-03 17:46:04 -07:00
François Garillot
865275e2a2
Correcting some trivial Rust option/iterator warts 2020-01-29 13:53:05 -08:00
Jack Grigg
9c485cc97e Move from CurveProjective::add_assign_mixed to traits 2020-01-13 21:20:46 -05:00
Jack Grigg
1a8ec21c03 Move from Curve*::negate to Neg operator 2020-01-13 21:19:33 -05:00
Jack Grigg
8193324986 Move additive CurveProjective operators to traits 2020-01-13 21:19:33 -05:00
Jack Grigg
ec2c304efd
no_std support for ff crate 2019-12-14 12:55:34 +00:00
Jack Grigg
1c9f5742fa
Improve Field::pow API and impl 
Renamed to Field::pow_vartime to indicate it is still variable time with
respect to the exponent.
 2019-12-14 12:27:48 +00:00
Jack Grigg
3d2acf48ce
Constant-time field square root 
WARNING: THIS IS NOT FULLY CONSTANT TIME YET!

This will be fixed once we migrate to the jubjub and bls12_381 crates.
 2019-12-13 20:13:30 +00:00
Jack Grigg
40749da9a7
Constant-time field inversion 
WARNING: THIS IS NOT ACTUALLY CONSTANT TIME YET!

The jubjub and bls12_381 crates will replace our constant-time usages,
but we NEED to fix ff_derive because other users will expect it to
implement the Field trait correctly.
 2019-12-13 19:46:04 +00:00
Jack Grigg
662be3551f
impl ConditionallySelectable for Field 2019-12-12 23:15:48 +00:00
Jack Grigg
cded08b0c5
Make Field::square take &self and return Self 2019-12-12 23:09:28 +00:00
Jack Grigg
9dac748224
Make Field::double take &self and return Self 2019-12-12 22:59:18 +00:00
Jack Grigg
91c32f1c7c
Move from Field::negate to Neg operator 2019-12-12 22:52:17 +00:00
Jack Grigg
27c8f34601
Move Field operations to operator-backed traits 
The ff_derive, pairing, zcash_primitives::jubjub, and bellman dummy_engine
changes are minimally implemented on top of the existing *_assign()
functions.
 2019-12-12 21:19:46 +00:00
Jack Grigg
7fda177da8
Doc link fixes 2019-11-07 17:33:22 +00:00
str4d
40d22ea2cc
Merge pull request #135 from NikVolf/extern-purge 
Remove unneeded "extern crate"
 2019-10-31 17:12:26 +00:00
NikVolf
7844394364 Remove unneeded extern crate 2019-10-08 16:12:14 +03:00
Jack Grigg
25558893ab
bellman 0.2.0 2019-10-08 17:43:33 +13:00
str4d
2399d9f3e3
Merge pull request #93 from defuse/qed-it-lrz 
Bring in QED-it Tests
 2019-10-08 13:47:36 +13:00
Jack Grigg
4ad3988e43
Crate docs 2019-09-24 14:23:59 +01:00
Jack Grigg
7f3036d2c8
Update READMEs 2019-09-24 14:23:55 +01:00
Jack Grigg
d9a0b9c83f
CI: Check intra-doc links 
Credit: https://twitter.com/tomaka17/status/1176017851410526208
 2019-09-24 10:35:12 +01:00
Jack Grigg
1d02363752
Add READMEs to Cargo.toml files 
This will cause crates.io to render each crate's README as its
information page.
 2019-09-23 14:42:38 +01:00
Jack Grigg
39a73c8eda
Add missing cs.is_satisfied() to bellman test 2019-09-17 00:16:33 +01:00
Taylor Hornby
caab37c336
Fix build warnings 2019-09-16 23:06:48 +01:00
Kobi Gurkan
f3533e291f
boolean: adds tests for alloc_conditionally 2019-09-16 22:08:30 +01:00
Kobi Gurkan
2ee7b108af
blake2s: adds test vectors from go-jubjub 2019-09-16 20:34:21 +01:00
Taylor Hornby
cc2a41d86c
Fix blake2s test data length assertion. 2019-09-16 20:24:31 +01:00
Kobi Gurkan
804f4cba67
Add blake2s test vectors for varying sizes from go-jubjub 2019-09-16 20:23:09 +01:00
Kobi Gurkan
43496857c9
pedersen_hash: removes debug prints 2019-09-16 20:20:03 +01:00