https://github.com/coins/sha256

JavaScript implementation of SHA256 extracted from Bitcoin Core and compiled to WebAssembly
https://github.com/coins/sha256

Last synced: 6 days ago
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JavaScript implementation of SHA256 extracted from Bitcoin Core and compiled to WebAssembly

• Host: GitHub
• URL: https://github.com/coins/sha256
• Owner: coins
• Created: 2023-11-30T20:14:26.000Z (12 months ago)
• Default Branch: main
• Last Pushed: 2024-02-03T22:22:03.000Z (9 months ago)
• Last Synced: 2024-11-01T11:02:30.458Z (13 days ago)
• Language: C++
• Homepage:
• Size: 30.3 KB
• Stars: 4
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

Awesome Lists containing this project

• awesome-bitvm - SHA256 WASM

README

        
# SHA256 WASM

SHA256 implementation extracted from [Bitcoin Core](https://github.com/bitcoin/bitcoin/blob/master/src/crypto/sha256.cpp) and compiled to WebAssembly.

## Usage

```js

import {sha256} from 'https://bitvm.github.io/sha256/sha256.js'

const preimage = new Uint8Array([97, 98, 99])    // Our preimage is "abc"

const digest = sha256(preimage)

console.log(digest)

```

## Development

The following command compiles the sources to wasm:

```sh

clang src/sha256.cpp -O2 --no-standard-libraries --target=wasm32 -Wl,--no-entry -o sha256.wasm

```