Changelog

Entries are listed in reverse chronological order.

2.4.1

• Fix a bug in how the README was included in the documentation builds which caused nightly builds to break.

2.4.0

• Add new ConstantTimeGreater and ConstantTimeLess traits, as well as implementations for unsigned integers, by @isislovecruft.

2.3.0

• Add impl ConstantTimeEq for Choice by @tarcieri.
• Add impl From<CtOption<T>> for Option<T> by @CPerezz. This is useful for handling library code that produces CtOptions in contexts where timing doesn't matter.
• Introduce an MSRV policy.

2.2.3

• Remove the nightly-only asm-based black_box barrier in favor of the volatile-based one, fixing compilation on current nightlies.

2.2.2

• Update README.md to clarify that 2.2 and above do not require the nightly feature.

2.2.1

• Adds an or_else combinator for CtOption, by @ebfull.
• Optimized black_box for nightly, by @jethrogb.
• Optimized black_box for stable, by @dsprenkels.
• Fixed CI for no_std, by @dsprenkels.
• Fixed fuzz target compilation, by @3for.

2.2.0

• Error during cargo publish, yanked.

2.1.1

• Adds the “crypto” tag to crate metadata.
• New shorter, more efficient ct_eq() for integers, contributed by Thomas Pornin.

2.1.0

• Adds a new CtOption<T> which acts as a constant-time Option<T> (thanks to @ebfull for the implementation).
• Choice now itself implements ConditionallySelectable.

2.0.0

• Stable version with traits reworked from 1.0.0 to interact better with the orphan rules.