crates.io · crates:ctutils

ctutils active

Constant-time utility library with selection and equality testing support targeting cryptographic applications. Supports `const fn` where appropriate. Built on the `cmov` crate which provides architecture-specific predication intrinsics. Heavily inspired by the `subtle` crate.

Latest stable version	0.4.3
Published	2026-10-05 23:29:33 UTC
Install	`cargo add ctutils`
Minimum Rust version (rust-version)	`Rust ≥ 1.87`
License	Apache-2.0 OR MIT
Advisories on latest version	none known
Last verified	2026-10-09 03:07:32 UTC
Sources	api.osv.dev, crates.io

Maintenance

Activity	active
Last stable release	2026-10-05 23:29:33 UTC · 3 days ago
Stable releases in the last 12 months	17
Published versions	23

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

Version	Published
`0.4.3`	2026-10-05 23:29:33 UTC
`0.4.2`	2026-04-02 20:44:34 UTC
`0.4.1`	2026-04-02 15:45:37 UTC
`0.4.0`	2026-01-20 02:55:14 UTC
`0.3.2`	2026-01-16 21:56:30 UTC
`0.3.1`	2026-01-03 16:15:42 UTC
`0.3.0`	2025-12-29 22:24:00 UTC
`0.2.3`	2025-12-29 17:44:01 UTC
`0.2.2`	2025-12-28 20:15:05 UTC
`0.2.1`	2025-12-28 06:38:10 UTC
`0.2.0` withdrawn	2025-12-27 15:42:07 UTC
`0.1.4` withdrawn	2025-12-27 06:23:29 UTC
`0.1.3` withdrawn	2025-12-27 05:08:48 UTC
`0.1.2` withdrawn	2025-12-27 03:49:20 UTC
`0.1.1` withdrawn	2025-12-26 19:45:14 UTC
`0.1.0` withdrawn	2025-12-20 03:08:37 UTC
`0.0.0` withdrawn	2025-12-18 01:20:59 UTC

Showing the 17 most recent of 17 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

Runtime	Newest compatible version
`rust 1.63`	none
`rust 1.70`	none
`rust 1.75`	none
`rust 1.80`	none
`rust 1.85`	`0.4.2`
`rust 1.90`	`0.4.3`

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Frequently asked questions

What is the latest version of ctutils?

The latest stable version of ctutils is 0.4.3, published on 2026-10-05. Verified by Vigia on 2026-10-09.

How do I install the latest version of ctutils?

Run cargo add ctutils. The latest stable version is 0.4.3 (verified 2026-10-09).

Is ctutils deprecated?

No. ctutils is not marked as deprecated in the registry.

Which Rust version does ctutils require?

ctutils 0.4.3 declares this requirement: Rust ≥ 1.87.

Does ctutils 0.4.3 have known vulnerabilities?

No known advisories affect ctutils 0.4.3 according to the data Vigia checks.

Is ctutils still maintained?

ctutils published 17 stable releases in the last 12 months; the most recent was 3 days ago. Activity: active.

Observed changes

No changes observed yet since Vigia started tracking this package.

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