signature

Traits for cryptographic signature algorithms (e.g. ECDSA, Ed25519)

3.0.0 402M downloads/mo #288 most downloaded on crates.io RustCrypto/traits

What this package is like to depend on

Last release 3 months ago

02 May 2026

Release timing varies

gaps range from 1 weeks to 7 months

Nearly every release is documented

notes for 20 of 21 stable releases

3 versions withdrawn

withdrawn after publishing

8 years old

55 releases · first in 2018

9 releases in the last 12 months

see the full history below

Release timeline

55 releases · Oct 2018 to May 2026

2019 2020 2021 2022 2023 2024 2025 2026

Release Pre-release Withdrawn

Releases

latest 55

3.0.0 02 May 2026
Release notes
Added
- RandomizedSignerMut trait (#1448)
- core::error::Error support (#1711)
- Async traits incorporated from the async-signature crate (#1720, #2288)
- MultipartSigner and MultipartVerifier traits (#1880)
Changed
- Edition changed to 2024 and MSRV bumped to 1.85 (#1759)
- Use Fn(&mut D) for *DigestSigner/*DigestVerifier (#2004)
- Bump rand_core to v0.10 (#2250)
- Bump digest to v0.11 (#2300)
Removed
- Error source from display message (#1689)
- std feature (#1829)
- derive feature (#1843)
- SignerMut blanket implementation for Signer (#1915)
- PrehashSignature trait (#1924)
Open source →
3.0.0-rc.10 01 Feb 2026 pre-release

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3.0.0-rc.9 24 Jan 2026 pre-release

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3.0.0-rc.8 20 Jan 2026 pre-release

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3.0.0-rc.7 19 Jan 2026 pre-release

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3.0.0-rc.6 27 Dec 2025 pre-release

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3.0.0-rc.5 05 Nov 2025 pre-release

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3.0.0-rc.4 13 Sep 2025 pre-release

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3.0.0-rc.3 02 Sep 2025 pre-release

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3.0.0-rc.2 16 Jul 2025 pre-release

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3.0.0-rc.1 03 Jun 2025 pre-release

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3.0.0-rc.0 29 May 2025 pre-release

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2.3.0-pre.7 20 Apr 2025 pre-release

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2.3.0-pre.6 20 Feb 2025 pre-release

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2.3.0-pre.5 12 Feb 2025 pre-release

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2.3.0-pre.4 27 Jul 2024 pre-release

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2.3.0-pre.3 01 Feb 2024 pre-release

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2.3.0-pre.2 17 Jan 2024 pre-release

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2.3.0-pre.1 10 Jan 2024 pre-release

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2.3.0-pre.0 09 Jan 2024 pre-release

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2.2.0 12 Nov 2023
Release notes
Changed
- MSRV 1.60 (#1387)
Fixed
- No longer vendoring async/derive crates unintentionally (#1391)
Open source →
2.1.0 02 Apr 2023
Release notes
Added
- SignatureEncoding::encoded_len (#1283)
Open source →
2.0.0 15 Jan 2023
Release notes
Added
- SignatureEncoding trait as a replacement for Signature trait and the now removed AsRef<[u8]> bound on signatures (#1141)
- New Keypair trait which returns owned keys instead of borrowed (#1141)
Changed
- derive-preview has been renamed to derive and stabilized (#1141)
- digest-preview renamed to digest, still unstable (#1210)
- hazmat-preview feature stabilized and removed, always on (#1141)
- rand-preview renamed to rand_core, still unstable (#1210)
- std feature is no longer enabled by default (#1141)
- Old Keypair trait renamed to KeypairRef (#1141)
- Signature generic parameter removed from Keypair/KeypairRef (#1141)
- Use &mut impl CryptoRngCore RNG arguments (#1147)
Removed
- Signature trait - replaced by SignatureEncoding (#1141)
- hazmat-preview feature, now always on (#1141)
Open source →
2.0.0-rc.1 07 Jan 2023 pre-release

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2.0.0-rc.0 04 Jan 2023 pre-release

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2.0.0-pre.3 10 Dec 2022 pre-release

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2.0.0-pre.2 04 Nov 2022 pre-release

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2.0.0-pre.1 03 Nov 2022 pre-release

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2.0.0-pre.0 31 Oct 2022 pre-release

Nothing published for this version
1.6.4 06 Oct 2022
Release notes
Added
- RandomizedPrehashSigner trait in hazmat module (#1130)
Open source →
1.6.3 16 Sep 2022
Release notes
Changed
- Bump signature_derive to v1.0.0-pre.7 (#1119)
Open source →
1.6.2 15 Sep 2022
Release notes
Changed
- Relax Keypair type bounds (#1107)
Open source →
1.6.1 12 Sep 2022 withdrawn
Release notes
Added
- hazmat-preview feature with PrehashSigner/PrehashVerifier traits (#1099)
Changed
- Bump signature_derive to v1.0.0-pre.6 (#1104)
Open source →
1.6.0 14 Aug 2022 withdrawn
Release notes
Added
- Keypair trait (#1080)
Changed
- Rust 2021 edition upgrade; MSRV 1.56 (#1081)
- Bump signature_derive dependency to v1.0.0-pre.5 (#1082)
- Bump hex-literal dependency to v0.3 (#1083)
Open source →
1.5.0 05 Jan 2022
Release notes
Changed
- Bump digest dependency to v0.10 (#850)
- Bump signature-derive dependency to v1.0.0-pre.4 (#866)
Open source →
1.4.0 21 Oct 2021
Release notes
Added
- Re-export rand_core when the rand-preview feature is enabled (#683)
- SignerMut trait (#734)
Fixed
- Show error source in Display impl (#791)
Open source →
1.3.2 21 Oct 2021
Release notes
Fixed
- Backport changes from [#791] to the 1.3.x series.
Open source →
1.3.1 29 Jun 2021
Release notes
Added
- Result alias (#676)
Open source →
1.3.0 06 Jan 2021
Release notes
Changed
- Bump rand_core to v0.6 (#457)
- Bump signature-derive v1.0.0-pre.3 (#459)
Open source →
1.2.2 29 Jul 2020
Release notes
Added
- RandomizedDigestSigner (#235)
Open source →
1.2.1 29 Jul 2020
Release notes
Removed
- RNG generic parameter R from RandomizedSigner (#231)
Open source →
1.2.0 29 Jul 2020 withdrawn
Release notes
- Note: this release was published without the intended changes
Open source →
1.1.0 10 Jun 2020
Release notes
Changed
- Upgrade digest to v0.9; MSRV 1.41+ (#186)
Open source →
1.0.1 19 Apr 2020
Release notes
Changed
- Upgrade signature_derive to v1.0.0-pre.2 (#98)
Open source →
1.0.0 18 Apr 2020
Release notes
Initial 1.0 release! 🎉

Changed
- Rename DigestSignature => PrehashSignature (#96)
Open source →
1.0.0-pre.5 16 Mar 2020 pre-release
Release notes
Changed
- Improve Debug impl on Error (#89)
- Rename Signature::as_slice -> as_bytes (#87)
Open source →
1.0.0-pre.4 15 Mar 2020 pre-release
Release notes
Added
- Mark preview features as unstable in Cargo.toml (#82)
Changed
- Have Signature::from_bytes take a byte slice (#84)
- Ensure Error::new() is mandatory (#83)
Removed
- BoxError type alias (#81)
Open source →
1.0.0-pre.3 08 Mar 2020 pre-release
Release notes
Fixed
- docs.rs rendering (#76)
Open source →
1.0.0-pre.2 08 Mar 2020 pre-release
Release notes
Added
- RandomizedSigner trait (#73)
- Design documentation (#72)
Changed
- Error cleanups (#74)
- Crate moved to RustCrypto/traits (#71)
Open source →
1.0.0-pre.1 27 Oct 2019 pre-release
Release notes
Changed
- Use Error::source instead of ::cause (RustCrypto/signatures#37)
Removed
- Remove alloc feature; MSRV 1.34+ (RustCrypto/signatures#38)
Open source →
1.0.0-pre.0 11 Oct 2019 pre-release
Release notes
Changed
- Revert removal of DigestSignature (RustCrypto/signatures#33)
- 1.0 stabilization proposal (RustCrypto/signatures#32)
Open source →
0.3.0 10 Oct 2019
Release notes
Changed
- Simplify alloc gating; MSRV 1.36+ (RustCrypto/signatures#28)
- Replace DigestSignature trait with #[digest(...)] attribute (RustCrypto/signatures#27)
- signature_derive: Upgrade to 1.x proc macro crates (RustCrypto/signatures#26)
Open source →
0.2.0 07 Jun 2019
Release notes
Added
- signature_derive: Custom derive support for Signer/Verifier (RustCrypto/signatures#18)
Changed
- Have DigestSigner/DigestVerifier take Digest instance (RustCrypto/signatures#17)
Open source →
0.1.0 25 May 2019
Release notes
- Initial release
Open source →
0.0.0 30 Oct 2018

Nothing published for this version

signature

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