v0.10.0-beta.2

This latest beta cleans out the dependency graph, such that snow now only has one required dependency (on subtle)! Shoutout to @complexspaces for the work.

changes since v0.10.0-beta.1

• Updated Rust edition to 2024
• Remove dependency on rand, and feature-gated dependency on getrandom
• Removed unused byteorder dependency

Quick Summary

snow is now no_std-friendly, with only one required dependency now if you bring your own cryptographic provider!

This release also sees some breaking API changes in the builder to further prevent misuse/abuse - more builder functions now return Result<Self, Error> instead of Self.

The P-256 curve is now also available as a non-default feature for those of you needing more curves in your life.

New

• Add support for NIST P-256 curve by @AlfioEmanueleFresta in #185
• no_std support with alloc by @jmlepisto #183

Improvements

• Removed dependency on rand by @complexspaces in #193
• Update dead docs link for forming NoiseParams strings by @thombles in #129
• Fix documentation reference to parameters in examples/simple.rs by @okdistribute in #113
• Update various links by @robyoder in #151
• Fix nonce incrementing in stateful transport to match the specification by @complexspaces in #152
• s/Ed448/Curve448/ by @dconnolly in #155
• curve25519_dalek 4 by @kayabaNerve in #161
• Bump aes-gcm and chacha20poly1305 by @kayabaNerve in #166
• Simplify example code by @BlackHoleFox in #175
• added example for oneway pattern Xpsk1 by @bluen in #186

Migrating from 0.9

The main change you'll likely notice is the need to add expect(...) or ? to a few builder functions that have been updated to further limit the chance of misuse.

Here are all the semver-breaking changes:

• Builder function fallibility: more functions in the builder now return a Result to more explicitly prohibit calling the same setter twice.
• DHChoice::Ed448 has been renamed to DHChoice::Curve448
• Multiple new error enum variants have been added.

New Contributors

• @thombles made their first contribution in #129
• @okdistribute made their first contribution in #113
• @robyoder made their first contribution in #151
• @complexspaces made their first contribution in #152
• @dconnolly made their first contribution in #155
• @kayabaNerve made their first contribution in #161
• @AlfioEmanueleFresta made their first contribution in #185
• @bluen made their first contribution in #186
• @jmlepisto made their first contribution in #183

Full Changelog: v0.9.0...v0.10.0-beta.1