zeroize

Added

• Zeroizing is now repr(transparent) (#1253)
• optimization_barrier function (#1261)
• Zeroizing now supports ?Sized (#1318)
• zeroize_stack function (#1331)

Changed

• Edition changed to 2024 and MSRV bumped to 1.85 (#1149)
• Replace atomic_fence with optimization_barrier (#1252)
• Bump zeroize_derive to v1.5 (#1492)
• Always enable AVX-512 support (#1493)

Added

• Zeroizing is now repr(transparent) (#1253)
• optimization_barrier function (#1261)
• Zeroizing now supports ?Sized (#1318)
• zeroize_stack function (#1331)

Changed

• Edition changed to 2024 and MSRV bumped to 1.85 (#1149)
• Replace atomic_fence with optimization_barrier (#1252)
• Bump zeroize_derive to v1.5 (#1492)
• Always enable AVX-512 support (#1493)

Changed

• Switch from doc_auto_cfg to doc_cfg (#1228)

Changed

• Feature-gate AVX-512 support under simd; restores MSRV 1.60 (#1073)

NOTE: yanked due concerns over the MSRV bump. See #1067.

Added

• Unsafe zeroize_flat_type function (#1045)
• Zeroize impls for __m512 types on x86/x86_64 targets (#1052)

Changed

• Bump MSRV to 1.72 (#1052)
• Always enable AArch64 support (#1064)

Fixed

• Nightly warnings (#1055)

Changed

• Bump MSRV to 1.60 ([#900])

NOTE: yanked because #900 bumped MSRV to 1.60, which vioates our MSRV policy.

Added

• Impl Zeroize for MaybeUninit (#900)

Removed

• Unnecessary cfgs on SIMD type impls (#930)

Added

• Impl Zeroize for core::num::Wrapping (#818)
• Impl Zeroize for str and Box<str> (#842)

Changed

• 2021 edition upgrade; MSRV 1.56 (#869)

Added

• Optional serde support (#780)

Added

• #[inline(always)] annotations (#772)
• #[ignore] attribute on flaky CString test (#776)

Changed

• Factor integration tests into tests/ (#771)

Added

• Impl Zeroize for std::ffi::CString (#759)
• AsRef<T> and AsMut<T> impls for Zeroizing (#761)

Added

• Nightly-only support for zeroizing ARM64 SIMD registers (#749)

Fixed

• Deriving ZeroizeOnDrop on DerefMut (#739)

Fixed

• Ambiguous method for AssertZeroizeOnDrop (#725)

Fixed

• Double mut on AssertZeroizeOnDrop (#719)

Added

• Zeroize impls for PhantomData, PhantomPinned, and tuples with 0-10 elements (#660)
• #[zeroize(bound = "T: MyTrait")] (#663)
• ZeroizeOnDrop trait and custom derive (#699, #700, #703)

Added

• Implement Zeroize for NonZeroX

Changed

• Moved to RustCrypto/utils repository

Added

• Derive Default on Zeroizing

Added

• Implement Zeroize for [MaybeUninit<Z>]

NOTE: This release includes an MSRV bump to Rust 1.51. Please use zeroize = "1.3.0" if you would like to support older Rust versions.

Added

• Use const generics to impl Zeroize for [Z; N]; MSRV 1.51
• Zeroizing::clone_from now zeroizes the destination before cloning

Added

• impl Zeroize for Box<[Z]>
• Clear residual space within Option

Changed

• Ensure Option is None when zeroized
• Bump MSRV to 1.47

Added

• Zeroize support for x86(-64) SIMD registers

Changed

• Simplify String::zeroize
• MSRV 1.44+

• Add doc_cfg
• zeroize entire capacity of String
• zeroize entire capacity of Vec

• Add TryZeroize trait
• Add From<Z: Zeroize> impl for Zeroizing<Z>
• Remove bytes-preview feature

• Initial 1.0 release 🎉
• zeroize_derive: Remove legacy no_drop attribute support
• Rename bytes feature to bytes-preview
• Further relax Zeroize trait bounds for Vec
• Derive Clone, Debug, and Eq for Zeroizing

• Loosen Vec trait bounds for Zeroize

• (Optionally) Impl Zeroize for Bytes and BytesMut

Barring unforeseen circumstances, this release aims to be the last 0.x release prior to a zeroize 1.0 release.

• Disable zeroize_derive Cargo feature by default
• Remove std feature in favor of alloc; MSRV 1.36+
• Deprecate #[zeroize(no_drop)] attribute
• Use 1.0 proc-macro2, quote, and syn crates

• Improved attribute parser; fixes nightly build

• README.md: add Gitter badges; update image links

• Impl Zeroize for Option<Z: Zeroize>

NOTICE: This release changes the default behavior of derive(Zeroize) to no longer derive a Drop impl. If you wish to derive Drop, you must now explicitly add a #[zeroize(drop)] attribute on the type for which you are deriving Zeroize.

• Remove CPU fences
• Remove scary language about undefined behavior
• Bound blanket array impls on Zeroize instead of DefaultIsZeroes
• Require zeroize(drop) or zeroize(no_drop) attributes when deriving Zeroize .
• Support stabilized 'alloc' crate

• Impl Drop by default when deriving Zeroize

• Use synstructure for custom derive
• Add explicit array impls for DefaultIsZeroes
• Remove nightly feature
• Add Zeroizing<Z> to zeroize values on drop

• Add ZeroizeOnDrop marker trait + custom derive
• Custom derive support for Zeroize
• Rename ZeroizeWithDefault to DefaultIsZeroes

• Add debug_assert! to ensure string interiors are zeroized

• Avoid re-exporting the whole prelude

This release is a rewrite which replaces FFI bindings to OS-specific APIs with a pure Rust solution.

• Use core::sync::atomic fences
• Test wasm target
• Rewrite using core::ptr::write_volatile

• Fix ldd scraper for older glibc versions

• Support musl-libc

• Impl Zeroize trait on concrete types

• Replace secure_zero_memory with Zeroize

• Add Zeroize trait

• README.md: Fix intrinsic links

• Documentation improvements

• Initial release