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kem

v0.2.0 Growing

Traits for Key Encapsulation Mechanisms (KEMs): public-key cryptosystems designed to enable a sender (a.k.a. encapsulator) to generate and encrypt a short secret key and transmit it to a receiver (a.k.a. decapsulator) confidentially

Apache-2.0 OR MIT Edition 2021 MSRV 1.56

Quick Verdict

  • โœ“Actively maintained (updated 50d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Trusted by 124 crates
  • โœ“Team maintained (3 owners)
  • โœ“Permissive license (Apache-2.0 OR MIT)

Security

Checking security advisories...
Downloads
860.8K
Dependents
124
Releases
22
Size
8KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

172.7K downloads in the last 30 days (5.8K/day), up 36% from the previous period.

๐Ÿ”—
Moderate adoption

124 crates depend on kem. Reasonable ecosystem adoption, though not yet a core dependency.

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 5+ years old, kem hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 8KB, kem is lightweight. Small crate size correlates with focused, well-scoped functionality.

โš ๏ธ
Notable yanked versions

55% of releases have been yanked. Check version history before pinning.

๐ŸŒŸ
Used by top crates

Notable dependents include ml-kem, classic-mceliece-rust, x-wing, commucat-crypto, breakmancer. When high-quality crates choose kem, it's a strong quality signal.

Health Breakdown

Maintenance 15/25

Recency, release consistency, active ratio

Quality 9/25

Yanked ratio, deps, size, maturity, features

Community 16/20

Reverse deps, ownership, ecosystem

Popularity 7/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
4K/day avg+77%
02K4K6K8K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.3.0-pre.0
93%
v0.3.0-rc.6
5%
v0.2.0
1%
v0.3.0-rc.2
0%
v0.1.0
0%

Release Timeline

22 releases12 yankedsince 2021
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A
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D
2021
1
2022
2
2023
2024
1
2025
7
2026
11
Less
More|
Yanked

Feature Flags

std

README

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Maintainers

Dependencies
8
direct dependencies
Dependents
124
crates depend on kem

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