webbuf_sha256 0.15.0

SHA-256 hash and HMAC-SHA256 for WebBuf with optional support for WASM.
Documentation

webbuf_sha256

SHA-256 hash and HMAC-SHA256 for Rust and WebAssembly.

Installation

[dependencies]
webbuf_sha256 = "0.13"

Usage

use webbuf_sha256::{sha256_hash, double_sha256_hash, sha256_hmac};

// SHA-256 hash
let data = b"abc";
let hash = sha256_hash(data).unwrap();
assert_eq!(
    hex::encode(&hash),
    "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"
);

// Double SHA-256 (used in Bitcoin)
let double_hash = double_sha256_hash(data).unwrap();
assert_eq!(double_hash.len(), 32);

// HMAC-SHA256
let key = b"secret key";
let message = b"message";
let mac = sha256_hmac(key, message).unwrap();
assert_eq!(mac.len(), 32);

API

Function Description
sha256_hash(data: &[u8]) -> Result<Vec<u8>, String> Compute SHA-256 hash (32 bytes)
double_sha256_hash(data: &[u8]) -> Result<Vec<u8>, String> Compute SHA-256(SHA-256(data))
sha256_hmac(key: &[u8], data: &[u8]) -> Result<Vec<u8>, String> Compute HMAC-SHA256

WebAssembly

Build with the wasm feature for WebAssembly support:

[dependencies]
webbuf_sha256 = { version = "0.13", features = ["wasm"] }

The TypeScript wrapper is available as @webbuf/sha256 on npm.

License

MIT