Merge of #554

ZcashFoundation · Oct 10, 2023 · b1e5367 · b1e5367
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diff --git a/README.md b/README.md
@@ -1,5 +1,17 @@
 # ZF FROST (Flexible Round-Optimised Schnorr Threshold signatures)
 
+[![CI](https://github.com/ZcashFoundation/frost/actions/workflows/main.yml/badge.svg?branch=main)](https://github.com/ZcashFoundation/frost/actions/workflows/main.yml)
+
+| Crate                        |                        | Crates.io                                                                                                           | Documentation                                                                                        |
+| ---------------------------- | ---------------------- | ------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- |
+| Generic FROST implementation | [`frost-core`]         | [![crates.io](https://img.shields.io/crates/v/frost-core.svg)](https://crates.io/crates/frost-core)                 | [![Documentation](https://docs.rs/frost-core/badge.svg)](https://docs.rs/frost-core)                 |
+| Ristretto255 ciphersuite     | [`frost-ristretto255`] | [![crates.io](https://img.shields.io/crates/v/frost-ristretto255.svg)](https://crates.io/crates/frost-ristretto255) | [![Documentation](https://docs.rs/frost-ristretto255/badge.svg)](https://docs.rs/frost-ristretto255) |
+| Ed25519 ciphersuite          | [`frost-ed25519`]      | [![crates.io](https://img.shields.io/crates/v/frost-ed25519.svg)](https://crates.io/crates/frost-ed25519)           | [![Documentation](https://docs.rs/frost-ed25519/badge.svg)](https://docs.rs/frost-ed25519)           |
+| Ed448 ciphersuite            | [`frost-ed448`]        | [![crates.io](https://img.shields.io/crates/v/frost-ed448.svg)](https://crates.io/crates/frost-ed448)               | [![Documentation](https://docs.rs/frost-ed448/badge.svg)](https://docs.rs/frost-ed448)               |
+| P-256 ciphersuite            | [`frost-p256`]         | [![crates.io](https://img.shields.io/crates/v/frost-p256.svg)](https://crates.io/crates/frost-p256)                 | [![Documentation](https://docs.rs/frost-p256/badge.svg)](https://docs.rs/frost-p256)                 |
+| secp256k1 ciphersuite        | [`frost-secp256k1`]    | [![crates.io](https://img.shields.io/crates/v/frost-secp256k1.svg)](https://crates.io/crates/frost-secp256k1)       | [![Documentation](https://docs.rs/frost-secp256k1/badge.svg)](https://docs.rs/frost-secp256k1)       |
+| Generic Re-randomized FROST  | [`frost-rerandomized`] | [![crates.io](https://img.shields.io/crates/v/frost-rerandomized.svg)](https://crates.io/crates/frost-rerandomized) | [![Documentation](https://docs.rs/frost-rerandomized/badge.svg)](https://docs.rs/frost-rerandomized) |
+
 Rust implementations of ['Two-Round Threshold Schnorr Signatures with FROST'](https://datatracker.ietf.org/doc/draft-irtf-cfrg-frost/).
 
 Unlike signatures in a single-party setting, threshold signatures require cooperation among a
@@ -12,19 +24,25 @@ FROST'](https://datatracker.ietf.org/doc/draft-irtf-cfrg-frost/) presents a vari
 Round-Optimized Schnorr Threshold (FROST) signature scheme originally defined in
 [FROST20](https://eprint.iacr.org/2020/852.pdf). FROST reduces network overhead during threshold
 signing operations while employing a novel technique to protect against forgery attacks applicable
-to prior Schnorr-based threshold signature constructions. This variant of FROST requires two rounds
-to compute a signature, and implements signing efficiency improvements described by
-[Schnorr21](https://eprint.iacr.org/2021/1375.pdf). Single-round signing with FROST is not
-implemented here.
+to prior Schnorr-based threshold signature constructions.
+
+Besides FROST itself, this repository also provides:
+
+- Trusted dealer key generation as specified in the appendix of ['Two-Round Threshold Schnorr Signatures with FROST'](https://datatracker.ietf.org/doc/draft-irtf-cfrg-frost/);
+- Distributed key generation as specified in the original paper [FROST20](https://eprint.iacr.org/2020/852.pdf);
+- Repairable Theshold Scheme (RTS) from ['A Survey and Refinement of Repairable Threshold Schemes'](https://eprint.iacr.org/2017/1155) which allows a participant to recover a lost share with the help of a threshold of other participants;
+- Rerandomized FROST (paper under review).
 
 ## Getting Started
 
 Refer to the [ZF FROST book](https://frost.zfnd.org/).
 
 ## Status ⚠
 
-The FROST specification is not yet finalized, and this codebase has not yet been audited or
-released. The APIs and types in `frost-core` are subject to change.
+The FROST specification is not yet finalized, though no significant changes are
+expected at this point. This code base has been audited by NCC. The APIs and
+types in `frost-core` are subject to change during the release candidate phase,
+and will follow SemVer guarantees after 1.0.0.
 
 ## Usage
 
@@ -34,17 +52,3 @@ scratch. End-users should not use `frost-core` if they want to sign and verify s
 should use the crate specific to their ciphersuite/curve parameters that uses `frost-core` as a
 dependency.
 
-## Developer Information
-
-### Pre-commit checks
-
-1. Run tests `cargo test`
-2. Run formatter `cargo fmt`
-3. Check linter `cargo clippy --all-features --all-targets -- -D warnings` and if you want to automatically fix then run `cargo clippy --fix`
-
-### Coverage
-
-Test coverage checks are performed in the pipeline. This is cofigured here: `.github/workflows/coverage.yaml`
-To run these locally:
-1. Install coverage tool by running `cargo install cargo-llvm-cov`
-2. Run `cargo llvm-cov --ignore-filename-regex '.*(tests).*|benches.rs|gencode|helpers.rs` (you may be asked if you want to install `llvm-tools-preview`, if so type `Y`)
diff --git a/book/src/SUMMARY.md b/book/src/SUMMARY.md
@@ -16,3 +16,4 @@
 - [Developer Documentation](dev.md)
     - [List of Dependencies for Audit](dev/frost-dependencies-for-audit.md)
     - [Release Checklist](dev/release-checklist.md)
+    - [Developer Guide](dev/developer-guide.md)
diff --git a/book/src/dev/developer-guide.md b/book/src/dev/developer-guide.md
@@ -0,0 +1,14 @@
+# Developer Guide
+
+# Pre-commit checks
+
+1. Run tests `cargo test`
+2. Run formatter `cargo fmt`
+3. Check linter `cargo clippy --all-features --all-targets -- -D warnings` and if you want to automatically fix then run `cargo clippy --fix`
+
+# Coverage
+
+Test coverage checks are performed in the pipeline. This is cofigured here: `.github/workflows/coverage.yaml`
+To run these locally:
+1. Install coverage tool by running `cargo install cargo-llvm-cov`
+2. Run `cargo llvm-cov --ignore-filename-regex '.*(tests).*|benches.rs|gencode|helpers.rs` (you may be asked if you want to install `llvm-tools-preview`, if so type `Y`)