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ctr

v0.9.2 Growing

CTR block modes of operation

MIT OR Apache-2.0 Edition 2021 MSRV 1.56
CryptographyNo standard library #crypto#ciphers#stream-cipher#block-mode

Quick Verdict

  • โœ“Actively maintained (updated 29d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (2.1K crates depend on it)
  • โœ“Team maintained (2 owners)
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
121.8M
Dependents
2.1K
Releases
26
Size
18KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

9.1M downloads in the last 30 days (303.5K/day), up 23% from the previous period.

๐Ÿ”—
Widely adopted

2.1K crates depend on ctr. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 211 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, ctr hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 18KB, ctr is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include aes-gcm, aes-gcm-siv, aes-siv, eth-keystore, vrl. When high-quality crates choose ctr, it's a strong quality signal.

Health Breakdown

Maintenance 16/25

Recency, release consistency, active ratio

Quality 16/25

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
244K/day avg+63%
0100K200K300K400K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.9.2
72%
v0.8.0
14%
v0.6.0
11%
v0.7.0
2%
v0.3.2
1%

Release Timeline

26 releasessince 2018
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2018
4
2019
1
2020
7
2021
3
2022
3
2023
2024
3
2025
3
2026
2
Less
More

Feature Flags

stdalloczeroizeblock-padding

README

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Maintainers

Dependencies
6
direct dependencies
Dependents
2.1K
crates depend on ctr

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