WebAssembly port of Secp256k1
npm install @hazae41/secp256k1-wasmdeno install jsr:@hazae41/secp256k1-wasm- Reproducible building
- Pre-bundled and streamed
- Zero-copy memory slices
- k256
- ECDSA over Secp256k1
import { secp256k1Wasm } from "@hazae41/secp256k1-wasm";
// Wait for WASM to load
await secp256k1Wasm.initBundled();
using hash = new secp256k1Wasm.Memory(crypto.getRandomValues(new Uint8Array(32)))
using keypair = new secp256k1Wasm.Secp256k1SigningKey()
using identity = keypair.verifying_key()
using signaturex = keypair.sign_prehash_recoverable(hash)
using signaturem = signaturex.to_bytes()
const signatureb = signaturem.bytes
const r = signatureb.subarray(0, 32)
const s = signatureb.subarray(32, 64)
const v = signatureb[64]
using identity2 = secp256k1Wasm.Secp256k1VerifyingKey.recover_from_prehash(hash, signaturex)You can build the exact same bytecode using Docker
npm run compileThen check that all the files are the same using npm diff
npm diffIf the output is empty then the bytecode is the same as the one I published on NPM.
Each time I release a new version on GitHub, the GitHub's CI clones the GitHub repository, reproduces the build, and throws an error if the NPM release is different. If a version is present on NPM but not on GitHub, do not use it!