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https://github.com/sc0vu/js-secp256k1
Compiled webassembly of bitcoin secp256k1
https://github.com/sc0vu/js-secp256k1
bitcoin cryptography elliptic secp256k1 wasm webassembly
Last synced: 3 months ago
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Compiled webassembly of bitcoin secp256k1
- Host: GitHub
- URL: https://github.com/sc0vu/js-secp256k1
- Owner: sc0Vu
- License: mit
- Created: 2019-10-30T11:01:41.000Z (about 5 years ago)
- Default Branch: master
- Last Pushed: 2023-01-07T21:55:35.000Z (about 2 years ago)
- Last Synced: 2024-01-31T13:02:53.078Z (12 months ago)
- Topics: bitcoin, cryptography, elliptic, secp256k1, wasm, webassembly
- Language: JavaScript
- Homepage:
- Size: 4.02 MB
- Stars: 4
- Watchers: 3
- Forks: 2
- Open Issues: 14
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# js-secp256k1
[](https://github.com/sc0Vu/js-secp256k1/actions/workflows/ci.yml)
[](https://codecov.io/gh/sc0Vu/js-secp256k1)
Compiled webassembly of bitcoin secp256k1
# Install
* install library
```BASH
$ npm install js-secp256k1
```
# Build with emscripten
You can build secp256k1 wasm yourself with emscripten. We build two version of secp256k1 - node and web. The only difference is that there is no file system in web version.
```BASH
$ sh build.sh
```
After build wasm files, you should build javascript library again.
```BASH
$ npm run build
```
# Usage
* Hash message
```JS
// for nodejs
const secp256k1Async = require('js-secp256k1/dist/node-bundle')
// for browser
const secp256k1Async = require('js-secp256k1/dist/bundle')
// initialize the library
secp256k1 = await secp256k1Async()
// generate public key from private key
const privKey = Buffer.from([......])
// browser
const privKey = new Uint8Array([......])
let pubkey = secp256k1.privkeyToPubkey(privkey)
// serialize public key
let compressed = true
let cpubkey = secp256k1.serializePubkey(pubkey, compressed)
// sign
// signature {
// signature: ,
// recovery:
// }
let sig = secp256k1.sign(msg, privkey)
// verify
let isVerified secp256k1.verify(msg, sig.signature, pubkey)
// recover
let rpubkey = secp256k1.recover(msg, sig.signature, sig.recovery)
```
# Benchmark
Computer: 2.2 GHz 6-Core Intel Core i7
```
$ node -v
v12.18.1
> [email protected] start /Users/peterlai/Desktop/Projects/js-secp256k1/benchmarks
> node index.js
Secp256k1 WASM (current) x 3,979 ops/sec ±0.22% (94 runs sampled)
Secp256k1 0.2.1 WASM (current) x 3,865 ops/sec ±1.08% (96 runs sampled)
GYP Binding (secp256k1) x 1,156 ops/sec ±1.17% (93 runs sampled)
Pure JS (elliptic) x 1,249 ops/sec ±0.57% (96 runs sampled)
Sign: fastest is Secp256k1 WASM (current)
Secp256k1 WASM (current) x 2,275 ops/sec ±0.55% (98 runs sampled)
Secp256k1 0.2.1 WASM (current) x 1,734 ops/sec ±0.07% (97 runs sampled)
GYP Binding (secp256k1):
Pure JS (elliptic) x 460 ops/sec ±0.32% (93 runs sampled)
Recover: fastest is Secp256k1 WASM (current)
Secp256k1 WASM (current) x 2,757 ops/sec ±0.08% (96 runs sampled)
GYP Binding (secp256k1):
Pure JS (elliptic) x 548 ops/sec ±0.34% (95 runs sampled)
Verify: fastest is Secp256k1 WASM (current)
```
# License
MIT