RustCrypto / RustCrypto/traits

VRF traits

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Dominant language
Rust
Stars
755
Forks
256
Avg merge
1h 27m
Merged PRs (30d)
2

Description

This issue proposes to add traits for Verifiable Random Functions (VRFs) to the elliptic-curve crate.

RFC9831 describes various curve-specific VRF algorithms, including a generic implementation for all prime order curves, and e.g. Elligator2 for "Edwards25519", i.e. the twisted Edwards form of Curve25519.

We can add a generic implementation to the primeorder crate, and potentially add support to curve25519-dalek as well, if it ever adopts the elliptic-curve crate for providing cross-curve abstractions (see also: dalek-cryptography/curve25519-dalek#492)

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with RFC 9381 and inspect the primeorder crate, then review the possible curve25519-dalek integration and the linked elliptic-curve abstraction discussion. Done means defining VRF traits and a generic implementation for prime-order curves, with curve-specific support considered where the stated crate abstractions allow it.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cryptography
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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