RustCrypto: Constant-Time Base16 (hexadecimal)
Pure Rust implementation of Base16 (RFC 4648).
Implements lower and upper case Base16 variants without data-dependent branches or lookup tables, thereby providing portable "best effort" constant-time operation.
Supports no_std environments and avoids heap allocations in the core API
(but also provides optional alloc support for convenience).
Minimum Supported Rust Version
This crate requires Rust 1.60 at a minimum.
We may change the MSRV in the future, but it will be accompanied by a minor version bump.
License
Licensed under either of:
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.