Encoding and decoding data into/from hexadecimal representation.

Encoding a String

let hex_string = hex::encode("Hello world!");

println!("{}", hex_string); // Prints "48656c6c6f20776f726c6421"

Decoding a String

let decoded_string = String::from_utf8(hex::decode("48656c6c6f20776f726c6421").unwrap()).unwrap();

println!("{}", decoded_string); // Prints "Hello world!"

You can find the documentation here.

In order to use this crate, you have to add it under [dependencies] to your Cargo.toml

[dependencies]
hex = "0.4"

By default this will import std, if you are working in a no_std environment you can turn this off by adding the following

[dependencies]
hex = { version = "0.4", default-features = false }

• std: Enabled by default. Add support for Rust's libstd types.
• alloc: Enabled by default. Add support for alloc types (e.g. String) in no_std environment.
• serde: Disabled by default. Add support for serde de/serializing library. See the serde module documentation for usage.

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

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.