subtle

library2.6.1rscratesunverified

Pure-Rust traits and utilities for constant-time cryptographic implementations.

# Cargo.toml
[dependencies]
subtle = "2.6.1"

INSTALL

IMPORT

SIG · SUBTLE

subtle

cryptorustv2.6.1

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

ConstantTimeEq

✓ use subtle::ConstantTimeEq;

Compare two byte slices in constant time to prevent timing attacks.

use subtle::ConstantTimeEq; fn main() { let a = b"secret"; let b = b"secret"; println!("{}", a.ct_eq(b).unwrap_u8()); }

Debug

Known issues

gotchaUsing `ConstantTimeEq` on non-constant-time types (e.g., `Vec<u8>`) may not be constant-time if the type's comparison is not constant-time.

fix

Ensure the underlying type implements `ConstantTimeEq` correctly; prefer fixed-size arrays or `subtle::Choice`.

affects: >=2.0.0

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Version history

2.6.1latest on crates.io

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Dependencies

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