polyval: use cpubits crate for soft backend selection#261
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We provide both 32-bit and 64-bit pure Rust implementations of POLYVAL in `soft32.rs` and `soft64.rs`. This commit addresses a TODO to use the `cpubits` crate to select between them. It contains equivalent 64-bit overrides to what we already had, but also provides a common place to add additional such overrides for other targets in the future.
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## Added - `hazmat` feature that exposes `FieldElement` type (#279) ## Changed - Edition changed to 2024 and MSRV bumped to 1.85 (#228) - Relax MSRV policy and allow MSRV bumps in patch releases - Replace `polyval_force_soft` with `polyval_backend="soft"` (#259) - Use `cpubits` crate for `soft` backend selection (#261) - Bump `cpufeatures` to v0.3 (#292) - Use [Reduction/Field algorithm] for parallel block processing on `aarch64`/`x86(_64)` (#294) - `polyval::mulx` moved to `FieldElement::mulx` (#296) - Update to `universal-hash` v0.6 (#310) ## Removed - `cfg(polyval_armv8)` - now enabled by default (#214)
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We provide both 32-bit and 64-bit pure Rust implementations of POLYVAL in
soft32.rsandsoft64.rs.This commit addresses a TODO to use the
cpubitscrate to select between them.It contains equivalent 64-bit overrides to what we already had, but also provides a common place to add additional such overrides for other targets in the future.