#crypto #hex #pem #phc

no-std base16ct

Pure Rust implementation of Base16 a.k.a hexadecimal (RFC 4648) which avoids any usages of data-dependent branches/LUTs and thereby provides portable "best effort" constant-time operation and embedded-friendly no_std support

2 releases

Uses new Rust 2021

0.1.1 Jan 15, 2022
0.1.0 Jan 13, 2022
0.0.0 Jan 11, 2022

#4 in #pem

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Used in 761 crates (24 directly)

Apache-2.0 OR MIT

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RustCrypto: Constant-Time Base16 (hexadecimal)

crate Docs Build Status Apache2/MIT licensed Rust Version Project Chat

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).

Documentation

Minimum Supported Rust Version

This crate requires Rust 1.56 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.

No runtime deps

Features

  • alloc
  • std