crates.io · crates:k256

k256 active

secp256k1 elliptic curve library written in pure Rust with support for ECDSA signing/verification/public-key recovery, Taproot Schnorr signatures (BIP340), Elliptic Curve Diffie-Hellman (ECDH), and general-purpose secp256k1 elliptic curve group operations which can be used to implement arbitrary protocols

Latest stable version	0.14.0
Published	2026-07-08 18:31:08 UTC
Install	`cargo add k256`
Minimum Rust version (rust-version)	`Rust ≥ 1.85`
License	Apache-2.0 OR MIT
Advisories on latest version	none known
Last verified	2026-10-09 03:08:23 UTC
Sources	api.osv.dev, crates.io

Maintenance

Activity	active
Last stable release	2026-07-08 18:31:08 UTC · 92 days ago
Stable releases in the last 12 months	1
Published versions	87

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

Version history

Version	Published
`0.14.0`	2026-07-08 18:31:08 UTC
`0.13.4`	2024-09-20 16:19:23 UTC
`0.13.3`	2024-01-08 19:25:12 UTC
`0.13.2`	2023-11-15 23:07:34 UTC
`0.13.1`	2023-04-10 03:43:40 UTC
`0.13.0`	2023-03-03 17:16:43 UTC
`0.12.0`	2023-01-16 16:59:51 UTC
`0.11.6`	2022-09-27 16:34:32 UTC
`0.11.5`	2022-09-14 17:09:40 UTC
`0.11.4`	2022-08-13 23:35:50 UTC
`0.11.3`	2022-07-02 21:16:13 UTC
`0.11.2`	2022-05-24 21:21:17 UTC
`0.11.1`	2022-05-24 18:59:18 UTC
`0.11.0`	2022-05-09 17:50:31 UTC
`0.10.4`	2022-03-15 20:57:03 UTC
`0.10.3`	2022-03-14 20:38:51 UTC
`0.10.2`	2022-01-17 16:26:55 UTC
`0.10.1`	2022-01-05 05:25:00 UTC
`0.10.0`	2021-12-14 17:03:39 UTC
`0.9.6`	2021-07-22 14:01:57 UTC

Showing the 20 most recent of 52 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`	`0.12.0`
`rust 1.70`	`0.13.4`
`rust 1.75`	`0.13.4`
`rust 1.80`	`0.13.4`
`rust 1.85`	`0.14.0`
`rust 1.90`	`0.14.0`

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Frequently asked questions

What is the latest version of k256?

The latest stable version of k256 is 0.14.0, published on 2026-07-08. Verified by Vigia on 2026-10-09.

How do I install the latest version of k256?

Run cargo add k256. The latest stable version is 0.14.0 (verified 2026-10-09).

Is k256 deprecated?

No. k256 is not marked as deprecated in the registry.

Which Rust version does k256 require?

k256 0.14.0 declares this requirement: Rust ≥ 1.85.

Does k256 0.14.0 have known vulnerabilities?

No known advisories affect k256 0.14.0 according to the data Vigia checks.

Is k256 still maintained?

k256 published 1 stable releases in the last 12 months; the most recent was 92 days ago. Activity: active.

Observed changes

No changes observed yet since Vigia started tracking this package.

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