chacha20poly1305

Pure Rust implementation of the ChaCha20Poly1305 Authenticated Encryption with Additional Data Cipher (RFC 8439) with optional architecture-specific hardware acceleration. Also contains implementations of the XChaCha20Poly1305 extended nonce variant of ChaCha20Poly1305, and the reduced-round ChaCha8Poly1305 and ChaCha12Poly1305 lightweight variants.

0.11.0 76M downloads/mo #941 most downloaded on crates.io RustCrypto/AEADs

What this package is like to depend on

Last release 1 months ago

28 Jun 2026

Ships unpredictably

gaps range from 9 days to 2.0 years

Nearly every release is documented

notes for 24 of 25 stable releases

1 version withdrawn

withdrawn after publishing

10 years old

35 releases · first in 2016

4 releases in the last 12 months

see the full history below

Release timeline

35 releases · Oct 2016 to Jun 2026

2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Release Pre-release Withdrawn

Releases

latest 35

0.11.0 28 Jun 2026
Release notes
Added
- bytes feature passthrough (#631)
Changed
- Bump aead from 0.5 to 0.6 (#831)
- Bump chacha20 from 0.9 to 0.10 (#796)
- Bump cipher from 0.4 to 0.5 (#583)
- Bump poly1305 from 0.8 to 0.9 (#823)
- Edition changed to 2024 and MSRV bumped to 1.85 (#662)
- Relax MSRV policy and allow MSRV bumps in patch releases
Removed
- std and stream features (#662)
Open source →
0.11.0-rc.3 02 Feb 2026 pre-release

Nothing published for this version
0.11.0-rc.2 05 Nov 2025 pre-release

Nothing published for this version
0.11.0-rc.1 03 Sep 2025 pre-release

Nothing published for this version
0.11.0-rc.0 30 May 2025 pre-release

Nothing published for this version
0.11.0-pre.2 07 Oct 2024 pre-release

Nothing published for this version
0.11.0-pre.1 27 Jul 2024 pre-release

Nothing published for this version
0.10.1 10 Aug 2022
Release notes
Added
- rand_core feature (#467)
Open source →
0.10.0 01 Aug 2022
Release notes
Added
- getrandom feature (#446)
- Impl ZeroizeOnDrop for ChaChaPoly1305 (#447)
Changed
- Bump chacha20 dependency to v0.9 (#402)
- Rust 2021 edition upgrade; MSRV 1.56+ (#435)
- Bump aead dependency to v0.5 (#444)
- Bump poly1305 dependency to v0.8 (#454)
Open source →
0.10.0-pre.2 20 Jul 2022 pre-release

Nothing published for this version
0.10.0-pre.1 02 Jul 2022 pre-release

Nothing published for this version
0.10.0-pre 19 Mar 2022 pre-release

Nothing published for this version
0.9.1 07 Jul 2022
Release notes
Changed
- Unpin zeroize dependency (#438)
Open source →
0.9.0 29 Aug 2021
Release notes
Changed
- Bump chacha20 to v0.8: now a hard dependency (#365)
- MSRV 1.51+ (#365)
Removed
- chacha20 feature: now a hard dependency (#365)
- xchacha20 feature: now always-on (#365)
- chacha20-reduced-round and xchacha20-reduced-round have been coalesced into the reduced-round feature (#365)
Open source →
0.8.2 28 Aug 2021
Release notes
Added
- XChaCha* reduced-round variants (#355)
Changed
- Relax subtle and zeroize requirements (#360)
Open source →
0.8.1 20 Jul 2021
Release notes
Changed
- Pin zeroize dependency to v1.3 (#349)
Open source →
0.8.0 29 Apr 2021
Release notes
Added
- Wycheproof test vectors (#274)
Changed
- Bump aead crate dependency to v0.4 (#270)
- xchacha feature name (#257)
- MSRV 1.49+ (#286, #289)
- Bump chacha20 crate dependency to v0.7 (#286)
- Bump poly1305 crate dependency to v0.7 (#289)
Open source →
0.7.1 25 Oct 2020
Release notes
Changed
- Expand README.md (#233)
Open source →
0.7.0 16 Oct 2020
Release notes
Changed
- Replace block-cipher/stream-cipher with cipher crate (#229)
- Bump chacha20 dependency to v0.6 (#229)
Open source →
0.6.0 17 Sep 2020
Release notes
Added
- Optional std feature; disabled by default (#217)
Changed
- Upgrade chacha20 to v0.5; stream-cipher to v0.7 (#209)
Open source →
0.5.1 11 Jun 2020
Release notes
Added
- Key, Nonce, and XNonce type aliases (#168)
Open source →
0.5.0 07 Jun 2020
Release notes
Changed
- Bump aead crate dependency to v0.3; MSRV 1.41+ (#144)
- Bump chacha20 crate dependency to v0.4 (#159)
- Bump poly1305 crate dependency to v0.6 (#158)
Open source →
0.4.1 09 Mar 2020
Release notes
Fixed
- Clone impl on ChaChaPoly1305 (#103)
Open source →
0.4.0 08 Mar 2020 withdrawn
Release notes
Added
- chacha20 cargo feature; ; replace macros with generics (#99)
Open source →
0.3.3 27 Feb 2020
Release notes
Fixed
- Wording in documentation about security audit (#84)
Open source →
0.3.2 27 Feb 2020
Release notes
Added
- Notes about NCC audit to documentation (#80)
Open source →
0.3.1 16 Jan 2020
Release notes
Added
- ChaCha8Poly1305/ChaCha12Poly1305 reduced round variants (#69)
- criterion-based benchmark (#66)
Changed
- Upgrade to chacha20 v0.3; adds AVX2 backend w\ +60% perf (#67)
Open source →
0.3.0 27 Nov 2019
Release notes
Added
- heapless feature (#51)
Changed
- Upgrade aead crate to v0.2; alloc now optional (#43)
Open source →
0.2.2 14 Nov 2019
Release notes
Changed
- Upgrade to zeroize 1.0 (#36)
Open source →
0.2.1 15 Oct 2019
Release notes
Changed
- Documentation improvements (#34)
Open source →
0.2.0 07 Oct 2019
Release notes
Added
- Expose "detached" in-place encryption/decryption APIs (#21)
Changed
- Upgrade to poly1305 crate v0.5 (#20)
Open source →
0.1.2 02 Oct 2019
Release notes
Changed
- Update to zeroize 1.0.0-pre (#17)
Open source →
0.1.1 19 Sep 2019
Release notes
Changed
- Update to poly1305 v0.4 (#8)
Open source →
0.1.0 30 Aug 2019
Release notes
- Initial release
Open source →
0.0.0 06 Oct 2016

Nothing published for this version

chacha20poly1305

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