sec1

Pure Rust implementation of SEC1: Elliptic Curve Cryptography encoding formats including ASN.1 DER encoded private keys as well as the Elliptic-Curve-Point-to-Octet-String encoding

0.8.1 205M downloads/mo #496 most downloaded on crates.io RustCrypto/formats

What this package is like to depend on

Last release 4 months ago

31 Mar 2026

Release timing varies

gaps range from 2 weeks to 4 months

Nearly every release is documented

notes for 8 of 8 stable releases

3 versions withdrawn

withdrawn after publishing

6 years old

30 releases · first in 2020

7 releases in the last 12 months

see the full history below

Release timeline

30 releases · Aug 2020 to Mar 2026

2021 2022 2023 2024 2025 2026

Release Pre-release Withdrawn

Releases

latest 30

0.8.1 31 Mar 2026
Release notes
Added
- Impl CtAssign(Slice)/CtEq(Slice) for EncodedPoint (#2269)
Open source →
0.8.0 10 Mar 2026
Release notes
Added
- ctutils feature (#2150)
Changed
- Migrate from generic-array to hybrid-array (#1298)
- Use core::error::Error (#1573)
- Blanket impl ModulusSize for all typenums (#1650)
- Upgrade to edition 2024; bump MSRV to 1.85 (#1666)
- Bump serdect to v0.4 (#2008)
- Bump base16ct to v1 (#2145)
- Bump der to v0.8 (#2234)
Removed
- Integration with pkcs8 crate (#1927)
Open source →
0.8.0-rc.13 23 Jan 2026 pre-release

Nothing published for this version
0.8.0-rc.12 20 Jan 2026 pre-release

Nothing published for this version
0.8.0-rc.11 03 Jan 2026 pre-release

Nothing published for this version
0.8.0-rc.10 15 Sep 2025 pre-release

Nothing published for this version
0.8.0-rc.9 02 Sep 2025 pre-release

Nothing published for this version
0.8.0-rc.8 10 Jul 2025 pre-release

Nothing published for this version
0.8.0-rc.6 03 Jul 2025 pre-release

Nothing published for this version
0.8.0-rc.5 30 May 2025 pre-release

Nothing published for this version
0.8.0-rc.4 23 Feb 2025 pre-release

Nothing published for this version
0.8.0-rc.3 15 Oct 2024 pre-release

Nothing published for this version
0.8.0-rc.2 20 Sep 2024 pre-release

Nothing published for this version
0.8.0-rc.1 06 Sep 2024 pre-release

Nothing published for this version
0.8.0-rc.0 26 Jul 2024 pre-release

Nothing published for this version
0.8.0-pre.1 10 Jan 2024 pre-release

Nothing published for this version
0.8.0-pre.0 08 Jan 2024 pre-release

Nothing published for this version
0.7.3 16 Jul 2023
Release notes
Added
- Impl Hash for EncodedPoint (#1102)
Open source →
0.7.2 10 Apr 2023
Release notes
Added
- Impl ModulusSize for U24 (#995)
Open source →
0.7.1 28 Feb 2023
Release notes
Fixed
- Encode ECPrivateKey version (#908)
Open source →
0.7.0 27 Feb 2023 withdrawn
Release notes
Changed
- MSRV 1.65 (#805)
- Bump serdect to v0.2 (#893)
- Bump der dependency to v0.7 (#899)
- Bump spki dependency to v0.7 (#900)
- Bump pkcs8 to v0.10 (#902)
Open source →
0.3.0 08 May 2022
Release notes
Added
- Make der feature optional but on-by-default (#497)
- Make point feature optional but on-by-default (#516)
Changed
- Use base16ct and serdect crates (#648)
- Bump der to v0.6 (#653)
- Bump pkcs8 to v0.9 (#656)
Open source →
0.3.0-pre.4 07 May 2022 pre-release

Nothing published for this version
0.3.0-pre.3 07 May 2022 pre-release

Nothing published for this version
0.3.0-pre.2 05 May 2022 pre-release

Nothing published for this version
0.3.0-pre.1 14 Mar 2022 pre-release

Nothing published for this version
0.2.1 18 Nov 2021
Release notes
Added
- serde feature (#248)
- Hexadecimal serialization/deserialization support for EncodedPoint (#248)
Open source →
0.2.0 17 Nov 2021 withdrawn
Release notes
Added
- pkcs8 feature (#229)
Changed
- Rename From/ToEcPrivateKey => DecodeEcPrivateKey/EncodeEcPrivateKey (#122)
- Use der::Document to impl EcPrivateKeyDocument (#133)
- Rust 2021 edition upgrade; MSRV 1.56 (#136)
- Bump der crate dependency to v0.5 (#222)
Removed
- I/O related errors (#158)
Open source →
0.1.0 22 Sep 2021
Release notes
- Initial release
Open source →
0.0.0 26 Aug 2020 withdrawn

Nothing published for this version

sec1

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