This is a base16 (e.g. hexadecimal) encoding and decoding library with an emphasis on performance. At the time of this writing, it's faster than the competitors that I could find.
Add base16 = "0.1" to Cargo.toml, then:
```rust extern crate base16;
fn main() { let originalmsg = "Foobar"; let hexstring = base16::encodelower(originalmsg); asserteq!(hexstring, "466f6f626172"); let decoded = base16::decode(&hexstring).unwrap(); asserteq!(String::fromutf8(decoded).unwrap(), originalmsg); } ```
More usage examples in the docs (every function should have a usage example now).
Dual MIT/Apache2 (whichever you prefer) since that seems hip for Rust code.