SHA-1 for WebAssembly

WebAssembly port of RustCrypto's SHA-1, a Rust implementations of SHA-1 hashing.

npm i @hazae41/morax

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Use case

This WebAssembly module is useful when you want to use SHA-1 incrementially, as WebCrypto doesn't support incremental hashing, and want good performances.

Performances Incremental hashing
Morax ⭐️⭐️⭐️⭐️ ✅
WebCrypto ⭐️⭐️⭐️⭐️⭐️ ❌
JavaScript ⭐️⭐️⭐️ ✅

Usage

import * as Morax from "@hazae41/morax";
import { Sha1Hasher } from "@hazae41/morax";

// Wait for WASM to load
Morax.initSyncBundledOnce()

// Create a hash
const hasher = new Sha1Hasher()

// Data to be hashed
const hello = new TextEncoder().encode("Hello World")

// Update the hash with your data
hasher.update(hello)

// Grab the digest (20 bytes)
const digest = hasher.finalize()

// Update the hash another time
hasher.update(hello)

// Grab the digest (20 bytes)
const digest2 = hasher.finalize()

// digest !== digest2
console.log(digest)
console.log(digest2)

Building

https://deno.land

  • Install binaryen (for wasm-opt) and add it your PATH

https://github.com/WebAssembly/binaryen/releases

cargo install wasm-pack
  • Install dependencies
npm install
  • Build wasm and module
npm run build