elliptic-curves

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curve25519: ed25519, x25519 and ristretto255

8

While working on [voprf](https://github.com/novifinancial/voprf) and [opaque-ke](https://github.com/novifinancial/opaque-ke) I noticed that a lot of implementations and traits could be removed if curve25519-dalek would support necessary traits from elliptic-curves, like [`Curve`](https://docs.rs/elliptic-curve/latest/elliptic_curve/trait.Curve.html) and [`ProjectiveArithmetic`](https://docs.rs/elliptic-curve/latest/elliptic_curve/trait.ProjectiveArithmetic.html)....

daxpedda

Missing elliptic curves

53

This is a tracking issue for additional elliptic curves we could potentially implement. Note that we are presently focusing on short Weierstrass curves which can be implemented using the `primeorder`...

tarcieri

p256: Allow converting affine points to coordinates and back

5

This adds a trait `AffineCoordinates` with two methods (`from_coordinates` and `to_coordinates`) to convert field element coordinates to points and back, checking that the coordinates are on the curve. Internal conversions...

codahale

Support WnafGroup

2

This would enable each Curve to define optimal window sizes for efficient multiplication, instead of having users manually bench/guess.

kayabaNerve

Implement `HashToScalar` for P-384

2

Depends on https://github.com/RustCrypto/traits/pull/1024.

daxpedda

p256: Add implementation of Elligator Squared.

4

This is in big need of more scrutiny, documenting, and refactoring, but I wanted to push early and allow for input. [Elligator Squared](https://eprint.iacr.org/2014/043.pdf) is obviously not a standard anything, nor...

codahale

k256: type safety for non-normalized field elements

1

The `k256` crate uses lazy normalization of field elements. While not a user-facing concern as we deliberately encapsulate `FieldElement`, there is a potential for bugs in code in `k256` itself...

tarcieri

Microcontroller optimizations.

2

I have a rather fast implementation of the base field for Cortex-M4/M33 microcontrollers, ~wrapping~ stealing the assembly routines in https://github.com/Emill/P256-cortex-ecdh/blob/master/P256-cortex-m4-ecdh-speedopt-gcc.s. Would there be interest to include platform-specific arithmetic implementations in...

nickray

Add core::fmt::Debug constraint to PrimeCurveParams::FieldElement

3

Building with master causes the below error depending on usage. ``` error[E0277]: `::FieldElement` doesn't implement `Debug` --> /home/coder0xff/Dropbox/Documents/Projects/Community/src/community/elliptic-curves/primeorder/src/affine.rs:290:30 | 290 | impl PrimeCurveAffine for AffinePoint | ^^^^^^^^^^^^^^ `::FieldElement` cannot be...

coder0xff

bp256+bp384: tracking issue for `arithmetic` feature

3

The `bp256` and `bp384` crates have a `wip-arithmetic-do-not-use` which enables a broken arithmetic backend. It's unclear why it isn't working, but it's failing test vectors. The field implementations were synthesized...

tarcieri