Commit graph

1999 commits

Author SHA1 Message Date
Henry de Valence
c925c76342 Change the strategy for reducing the high half of the product. 2019-01-18 14:19:30 -08:00
Henry de Valence
607b839032 Change size of limbs in the reduction test. 2019-01-18 14:19:30 -08:00
Henry de Valence
14163131f9 Lift the reduction state of the field elements into the type system.
This splits the `FieldElement51x4` type into two types:

- `F51x4Reduced` (with reduced limbs)
- `F51x4Unreduced` (with unreduced limbs)

The reduction is implemented as a `From` impl to convert one type to the other.

The output of a multiplication is now a `F51x4Unreduced`.  The reason is that
the inputs to IFMA operations must be at most 52 bits, so it's not possible to
perform an addition of (51+epsilon)-bit values and still be small enough to be
used as an input to multiplication.  So, it doesn't make sense to perform a
reduction at the end of a multiplication, because the reduced values will be
fed into an addition or subtraction, which then needs to be re-reduced.
2019-01-18 14:19:30 -08:00
Henry de Valence
ff49673214 Add impl Mul<(u32, u32, u32, u32)> for FieldElement51x4. 2019-01-18 14:19:30 -08:00
Henry de Valence
70199d6094 Add impl Mul<FieldElement51x4> for FieldElement51x4. 2019-01-18 14:19:30 -08:00
Henry de Valence
aa73d7b1bc Add a FieldElement51x4 type. 2019-01-18 14:19:30 -08:00
Henry de Valence
3233e2eac6 Fix: cfg_target_feature is stable since 1.27. 2019-01-18 14:19:20 -08:00
Henry de Valence
be77af1cd8 Remove unnecessary feature gate.
The vector backend doesn't generate constants in build.rs, so this isn't necessary.
2019-01-18 14:18:55 -08:00
Henry de Valence
e91cc685b1 Don't generate unused constants in build.rs. 2019-01-18 14:15:28 -08:00
Henry de Valence
47a164da4d Replace avx2_backend with simd_backend (autoselects AVX2/IFMA) 2019-01-18 01:52:17 -08:00
Henry de Valence
9ed2128a10 Add stub code for IFMA intrinsics in Rust. 2019-01-18 01:52:17 -08:00
Henry de Valence
0a97f5fe8c Don't compile the serial scalar_mul when using the vector one. 2019-01-18 01:52:07 -08:00
Henry de Valence
f1d2b5182b Restructure source tree into serial and vector backends.
This begins to attempt to restructure the source tree so that the common parts
are common and the different parts are different.

The backend is now split into two parts:
- serial (containing the implementation using serial formulas and mixed-model arithmetic).
- vector (containing the implementation using parallel formulas and single-model arithmetic).

The serial scalar_mul tree is now under backend::serial::scalar_mul.
The avx2 scalar_mul tree is now under backend::avx2::scalar_mul.
2019-01-18 01:49:40 -08:00
Henry de Valence
94cb3e7842 Rename field types based on radix.
`FieldElement32` -> `FieldElement2625`
`FieldElement64` -> `FieldElement51`
`Scalar32` -> `Scalar29`
`Scalar64` -> `Scalar52`

This naming is more accurate and would let us add an ADX backend later.
2019-01-17 22:21:55 -08:00
Isis Lovecruft
ebd9ad6a6e
Merge branch 'master' into develop 2019-01-18 05:58:49 +00:00
Isis Lovecruft
a65683accd
Merge branch 'release/1.0.0-pre.1' 2019-01-18 05:58:42 +00:00
Isis Lovecruft
e527280d2e
Remove TravisCI test for the sha2 feature which was removed. 2019-01-18 04:59:12 +00:00
Isis Lovecruft
ae8764fbef
Update copyright year to 2019 and destroy capitalism. 2019-01-18 04:59:12 +00:00
Isis Lovecruft
131fc2b07f
Bump ed25519-dalek version to 1.0.0-pre.1. 2019-01-18 04:59:12 +00:00
Isis Lovecruft
6d1d3ff5ea
Remove outdated comment about Fuchsia dependencies from Cargo.toml. 2019-01-18 04:59:12 +00:00
Isis Lovecruft
adf4c0ea03
Merge branch 'master' into develop 2019-01-18 04:57:49 +00:00
Isis Lovecruft
14e093925f
Merge branch 'release/0.9.1' 2019-01-18 04:50:45 +00:00
Isis Lovecruft
d447efbd59
Bump ed25519-dalek to 0.9.1. 2019-01-18 04:47:54 +00:00
Isis Lovecruft
84abd4855a
Update curve25519-dalek dependency to 1.0. 2019-01-18 04:45:23 +00:00
Henry de Valence
4814242d00 Merge branch 'master' into develop 2019-01-17 19:26:50 -08:00
Henry de Valence
3564d18ff8 Merge branch 'release/1.0.2' 2019-01-17 19:26:35 -08:00
Henry de Valence
0328fb1342 Bump patch version 2019-01-17 19:25:34 -08:00
Isis Lovecruft
454fb5d09e
Merge branch 'master' into develop 2019-01-17 23:22:12 +00:00
Isis Lovecruft
8c8c04cb32
Merge branch 'release/0.9.0' 2019-01-17 23:17:40 +00:00
Isis Lovecruft
f851aaf464
Bump ed25519-dalek version to 0.9. 2019-01-17 22:41:18 +00:00
Isis Lovecruft
35b4dfd24d
Bump rand dependency version to 0.6. 2019-01-17 22:39:48 +00:00
Henry de Valence
f48980cb5b
Merge pull request #223 from hdevalence/ristretto-fix
Fix variable naming in Ristretto decoding formulas
2019-01-16 17:54:23 -08:00
Henry de Valence
e6f27ca996 Fix Ristretto variable naming in decoding function
The code swaps u_1 and u_2 relative to the formulas (probably when doing the change for a=-1)
2019-01-13 18:01:00 -08:00
Артём Павлов [Artyom Pavlov]
762eb0c470 use rand_core 2019-01-05 15:58:59 +03:00
Артём Павлов [Artyom Pavlov]
4e4730303d enable rand_core/std 2019-01-05 14:32:36 +03:00
Артём Павлов [Artyom Pavlov]
d6ca36fa0b replace rand with rand_core+rand_os 2019-01-05 14:27:24 +03:00
isis agora lovecruft
8ebe5c799b
Merge pull request #66 from isislovecruft/feature/63-refactor
Refactor main module into separate modules and perform automated/general cleanups
2018-12-30 05:03:01 +00:00
Isis Lovecruft
0ddf39e443
Revise some module descriptions. 2018-12-30 04:27:40 +00:00
Isis Lovecruft
42b571eb24
Remove unused clear_on_drop import from tests. 2018-12-30 04:26:56 +00:00
Isis Lovecruft
82cdcb9cc9
Fix benchmarks after merging #64. 2018-12-30 04:26:22 +00:00
Isis Lovecruft
8b30d4084a
Run rustfmt on src/ed25519.rs. 2018-12-30 04:16:03 +00:00
Isis Lovecruft
fa726cfdcc
Run rustfmt on src/lib.rs. 2018-12-30 04:12:33 +00:00
Isis Lovecruft
ad49d31bbc
Run rustfmt on src/errors.rs. 2018-12-30 04:10:59 +00:00
Isis Lovecruft
811793ba2b
Run rustfmt on src/secret.rs. 2018-12-30 04:10:09 +00:00
Isis Lovecruft
d853856c36
Run rustfmt on src/public.rs. 2018-12-30 04:07:50 +00:00
Isis Lovecruft
a141863542
Run rustfmt on src/signature.rs. 2018-12-30 04:05:20 +00:00
Isis Lovecruft
144e87bfc8
Remove unnecessary tests/mod.rs file. 2018-12-30 04:01:39 +00:00
Isis Lovecruft
e6528bd683
Create new module for public key code. 2018-12-30 03:53:42 +00:00
Isis Lovecruft
e3d7c16aac
Make errors module private. 2018-12-30 03:53:42 +00:00
Isis Lovecruft
6fea2e1ea0
Realphabetise extern crates. 2018-12-30 03:53:42 +00:00