FROST Engineering Updates
summary
A fully generic Rust library frost-core implements the IETF two‑round FROST spec in ~300 lines, replacing ~3,000 lines of curve‑specific code; implemented cipher suites include ristretto255 and secp256k1 with cofactor handling for ed25519/n448. It adds batch verification support, benchmarks to 64 parties (claims feasibility to 100), and a working proof‑of‑concept for a randomizable FROST variant that uses a confidential coordinator randomizer (alpha) for Zcash integration; DKG and more curves are planned, not post‑quantum ready.
AI-written summary · about
chapters (10)
- 0:00Start
- 2:54History of FROST implementations
- 4:33Too many implementations • Duplicated code, multiple implementations, over multiple elliptic curves
- 6:27Adding a new Ciphersuite
- 7:31Porting a FROST impl to use frost-core
- 10:21Field trait Trait frost_core:Field
- 12:14Recent IETF spec updates
- 14:57Zcash Spend Authorization Signatures
- 16:15Re-randomization
- 20:46What's next and resources • FROST repository
