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p384

v0.13.1 Growing

Pure Rust implementation of the NIST P-384 (a.k.a. secp384r1) elliptic curve as defined in SP 800-186 with support for ECDH, ECDSA signing/verification, and general purpose curve arithmetic support.

Apache-2.0 OR MIT Edition 2021 MSRV 1.65
CryptographyNo standard library #crypto#ecc#nist#secp384r1

Quick Verdict

  • โœ“Actively maintained (updated 36d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (2.4K crates depend on it)
  • โœ“Team maintained (2 owners)
  • โœ“Permissive license (Apache-2.0 OR MIT)

Security

Checking security advisories...
Downloads
54.7M
Dependents
2.4K
Releases
45
Size
193KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

6.0M downloads in the last 30 days (200.0K/day), up 38% from the previous period.

๐Ÿ”—
Widely adopted

2.4K crates depend on p384. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 215 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 7+ years old, p384 hasn't reached 1.0 yet. Expect potential API changes between versions.

๐ŸŒŸ
Used by top crates

Notable dependents include jsonwebtoken, signatory, c2pa, openidconnect, pasetors. When high-quality crates choose p384, it's a strong quality signal.

Health Breakdown

Maintenance 16/25

Recency, release consistency, active ratio

Quality 15/25

Yanked ratio, deps, size, maturity, features

Community 20/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
163K/day avg+39%
0100K200K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.14.0-rc.7
45%
v0.14.0-rc.8
29%
v0.14.0-rc.9
15%
v0.14.0-rc.3
6%
v0.14.0-rc.1
5%

Release Timeline

10 releasessince 2025
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2026
7
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Feature Flags

default =["arithmetic", "ecdh", "ecdsa", "pem", "std"]

jwkpem*std*bitsecdh*allocecdsa*pkcs8serdevoprfdigestsha384arithmetic*hash2curveexpose-fieldtest-vectors

README

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Maintainers

Dependencies
12
direct dependencies
Dependents
2.4K
crates depend on p384

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