deterministic-hash
Tiny Rust library to create deterministic hashes regardless of architecture. This library is no-std
compatible and uses no allocations or dependencies.
The default core::hash::Hasher
implementation ensures a platform dependant hashing of datastructures that use #[derive(Hash)]
. Most notably by:
- using
to_ne_bytes
foru{8,16,32,64,128}
. - using the native bytelength of
usize
.
The DeterministicHasher
of this library forces the use of to_le_bytes
and casts usize
to u64
regardless of your platform. Hence the hasher will be less efficient, but will be deterministic when using the same library in different architecture contexts. I use a common dataprotocol library both on ARM embedded systems, wasm and x64.
You can validate the operation of this library with cross
by running: