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subtle-ng

v2.5.0 Growing

Pure-Rust traits and utilities for constant-time cryptographic implementations.

BSD-3-Clause
CryptographyNo standard library #crypto#cryptography#utilities#constant-time

Quick Verdict

  • โœ•Not updated for 4+ years
  • โœ“Stable API (2.x for 5+ years)
  • โœ“Tiny footprint (13KB, 1 deps)

Security

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Downloads
11.5M
Dependents
49
Releases
3
Size
13KB

Deep Insights

๐Ÿ“Š
Steady growth

762.1K downloads in the last 30 days (25.4K/day), up 14% from the previous period.

โœ…
Stable for 5+ years

The API has been stable (1.x) for over 5 years with 3 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿชถ
Minimal dependencies

Only 1 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.

๐Ÿ“
Compact crate

At 12KB, subtle-ng is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include curve25519-dalek-ng, secp256kfun, ore-rs, secp256kfun_k256_backend, secp256kfun_parity_backend. When high-quality crates choose subtle-ng, it's a strong quality signal.

Health Breakdown

Maintenance 4/25

Recency, release consistency, active ratio

Quality 22/25

Yanked ratio, deps, size, maturity, features

Community 11/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 11/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
21K/day avg+70%
010K20K30K40K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v2.5.0
99%
v2.4.1
1%
v2.4.0
0%

Release Timeline

3 releasessince 2021
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Feature Flags

default =["std", "i128"]

std*i128*nightly

README

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Maintainers

Dependencies
1
direct dependencies
Dependents
49
crates depend on subtle-ng

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