k256
v0.14.0 Growingsecp256k1 elliptic curve library written in pure Rust with support for ECDSA signing/verification/public-key recovery, Taproot Schnorr signatures (BIP340), Elliptic Curve Diffie-Hellman (ECDH), and general-purpose secp256k1 elliptic curve group operations which can be used to implement arbitrary protocols
Quick Verdict
- ✓Actively maintained (updated 5d ago)
- !Pre-1.0: API may have breaking changes
- ✓Massive adoption (9.3K crates depend on it)
- ✓Team maintained (2 owners)
- ✓Permissive license (Apache-2.0 OR MIT)
Security
Deep Insights
5.2M downloads in the last 30 days (173.2K/day). Volume is roughly flat compared to the previous period.
9.3K crates depend on k256. Strong ecosystem adoption means battle-tested code and long-term stability.
The primary maintainer publishes 220 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.
Despite being 6+ years old, k256 hasn't reached 1.0 yet. Expect potential API changes between versions.
Notable dependents include signatory, alloy-primitives, libp2p-identity, alloy-consensus, alloy-eip7702. When high-quality crates choose k256, it's a strong quality signal.
Health Breakdown
Recency, release consistency, active ratio
Yanked ratio, deps, size, maturity, features
Reverse deps, ownership, ecosystem
Downloads, momentum, growth trend
Docs, repo, license, metadata
Download Trend
Top Dependents
Version Adoption
Release Timeline
Feature Flags
default =["arithmetic", "ecdsa", "pkcs8", "precomputed-tables", "schnorr", "std"]
