38d38af3b7
Merge pull request #32 from kevaundray/patch-1
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Typo
2020-04-24 15:14:47 +12:00
109ec40d2a
Add public Scalar type alias for Fr
2020-03-29 03:06:46 -04:00
8e9c5fe6aa
typo in Fr.rs
2020-03-07 20:34:59 +00:00
5f4374c836
Fix typo
2019-12-07 15:51:54 +02:00
2e98dabcb8
Remove the std feature.
2019-12-03 18:31:04 -07:00
b54b846b50
Make Fq/Fr similar to each other.
2019-12-03 18:17:35 -07:00
e3766101f4
Bring in the macros used for operator overloading in the bls12_381 crate.
2019-12-03 18:01:28 -07:00
e83f7d2bd1
Merge pull request #26 from zkcrypto/bls12-381-scalar
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Replace Fq implementation with bls12_381::Scalar
2019-12-01 17:40:38 -07:00
b12ceb5623
Nit: change wording on use of the subtle crate.
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It's not that the crate is relying on `subtle` to perform constant-time
arithmetic, because the arithmetic implementations are done in this crate and
it's the fact that they're implemented in a constant-time way that's important.
Using subtle helps with constant-time operations but it is not enough, and
changing the wording of that sentence clarifies that.
(This is a nit).
2019-11-27 11:03:44 -08:00
62937011f7
Remove nightly advice for subtle.
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This is not necessary since 2.2.1.
2019-11-27 11:01:05 -08:00
71ab0bb707
Drop byteorder dependency
2019-11-26 19:41:50 +00:00
5a3dea32c5
Allow clippy::suspicious_arithmetic_impl on core::ops impls
2019-11-26 19:37:35 +00:00
4c1da9d8bc
Replace Fq implementation with bls12_381::Scalar
2019-11-26 19:26:41 +00:00
ab8293935a
Catch documentation errors caused by code changes
2019-11-14 13:30:07 +00:00
160cb42398
Change various into_bytes to to_bytes.
2019-05-31 19:47:56 -06:00
02b05eb075
Make CompletedPoint::into_extended take ownership, and inline.
2019-05-31 19:41:15 -06:00
803b6a3e65
Merge pull request #21 from str4d/stack-tweaks
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Stack tweaks
2019-05-30 17:42:07 -06:00
e1193d2ae9
impl Mul<Fr> for [Extended|Affine]NielsPoint
2019-05-29 17:30:24 +01:00
8c5adc3708
cargo fmt
2019-05-28 09:59:42 -06:00
4aebd80105
Change AffinePoint::to_niels to be a const fn.
2019-05-28 09:59:39 -06:00
a6afd81603
AffineNielsPoint::multiply_bits
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For parity with ExtendedNielsPoint::multiply_bits, and it is also
slightly more efficient to use if the caller is starting from an
AffinePoint.
2019-05-22 21:17:09 +01:00
aa0628ffcf
ExtendedNielsPoint::multiply_bits
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This allows the caller to control which stack frames pay the cost of
Montgomery reduction and scalar multiplication, by splitting
Fr::into_bytes out from the multiplication step. It also enables the
caller to drop the Montgomery multiplication and reduction round-trip if
they already have an encoded Fr element.
2019-05-22 11:41:33 +01:00
c392ffbeb2
Use ExtendedNielsPoint::identity directly in ExtendedPoint::multiply
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Saves two Fq multiplications and a stack allocation.
2019-05-22 11:41:33 +01:00
c5bf022613
Remove unnecessary shadowing from Fq::invert and Fr::invert
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Shadowing causes Rust to create new stack variables instead of reusing
the stack space. This change saves 160 bytes of stack space in
Fq::invert (a 20% saving in my tests), and 128 bytes of stack space in
Fr::invert.
2019-05-22 11:41:33 +01:00
085e8ae675
Replace unnecessary moves of Copy types with immutable references
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This significantly reduces the size of the stack.
2019-05-22 11:39:16 +01:00
cb57a647b5
Use CtOption from subtle crate
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Closes #20 .
2019-05-04 20:58:19 +01:00
e72b382055
Fix comment regarding montgomery reduction
2019-03-31 23:15:27 -06:00
35d32faa63
Add implementations of is_prime_order() for AffinePoint and ExtendedPoint.
2019-03-26 21:31:34 -06:00
390aa23db2
Rename Maybe to CtOption, and do not expose submodule.
2019-03-26 21:13:50 -06:00
26de2362db
Add affine mixed addition operator overloading.
2019-03-26 20:59:28 -06:00
1d2a424c1e
Re-enable dead_code lints for EDWARDS_D/EDWARDS_D2.
2019-03-26 20:57:17 -06:00
3c630463df
Add tests for AffinePoint serialization and deserialization.
2019-03-26 20:56:56 -06:00
2601c13a2d
Remove glob import that was importing MODULUS from Fr.
2019-03-21 15:57:22 -06:00
8edc7ebe2f
Disallow unsafe code.
2019-03-21 15:52:13 -06:00
44765a7ad4
Introduce utility functions for AffinePoint and ExtendedPoint.
2019-03-21 15:47:43 -06:00
9f0b177fb7
Introduce from_raw for field elements.
2019-03-20 23:44:31 -06:00
0cc3d82d98
cargo fmt
2019-03-20 20:30:35 -06:00
c0e7546f6f
Deny missing Debug implementations and documentation for public facing APIs.
2019-03-20 18:31:33 -06:00
c70eac71f1
Avoid unnecessary subtraction of modulus during 512-bit reduction.
2019-03-20 18:28:24 -06:00
62e20edcf5
Make inversion API return Maybe.
2019-03-20 18:03:35 -06:00
e597b7ee08
Add tests for Maybe::map and Maybe::and_then.
2019-03-20 17:48:41 -06:00
08221918bc
Make Fq square root constant time.
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Co-authored-by: Jack Grigg <jack@z.cash>
Co-authored-by: Eirik0 <eirik@z.cash>
2019-03-20 15:32:06 -06:00
71d5b5a1e8
Make Fr sqrt constant time.
2019-03-19 18:06:29 -06:00
8752e54904
Make field element deserialization constant time.
2019-03-19 17:57:12 -06:00
c764c97c8e
Introduce "Maybe" abstraction.
2019-03-19 16:26:39 -06:00
d197cb1988
Implementation of Tonelli-Shanks that actually matches the paper, and is more efficient.
2019-03-01 20:34:53 -07:00
51a5b6ae25
Fix typo in documentation.
2019-02-22 13:49:47 -07:00
d502391eef
Add more documentation.
2019-02-22 10:04:15 -07:00
fd32165f1c
Various minor improvements.
2019-02-20 20:44:17 -07:00
b413f8b6c9
cargo fmt
2019-02-20 13:25:49 -07:00
str4d
Deirdre Connolly
decentralisedkev
Dimitris Apostolou
Sean Bowe
Henry de Valence
Eirik0