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chainsafe-bls
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Cayman 2020-11-30 14:19:10 -06:00
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README.md
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@ -2,11 +2,11 @@
[![Build Status](https://travis-ci.org/ChainSafe/lodestar.svg?branch=master)](https://travis-ci.org/ChainSafe/lodestar)
[![codecov](https://codecov.io/gh/ChainSafe/lodestar/branch/master/graph/badge.svg)](https://codecov.io/gh/ChainSafe/lodestar)
![ETH2.0_Spec_Version 0.12.0](https://img.shields.io/badge/ETH2.0_Spec_Version-0.12.0-2e86c1.svg)
![ETH2.0_Spec_Version 1.0.0](https://img.shields.io/badge/ETH2.0_Spec_Version-1.0.0-2e86c1.svg)
![ES Version](https://img.shields.io/badge/ES-2017-yellow)
![Node Version](https://img.shields.io/badge/node-12.x-green)
Javascript library for BLS (Boneh-Lynn-Shacham) signatures and signature aggregation.
Javascript library for BLS (Boneh-Lynn-Shacham) signatures and signature aggregation, tailored for use in Eth2.
## Usage
@ -23,17 +23,24 @@ yarn add @chainsafe/bls @chainsafe/blst
You must initialize the library once in your application before using it. The result is cached and use across all your imports
```ts
import bls, {init} from "@chainsafe/bls";
import {init, SecretKey, secretKeyToPublicKey, sign, verify} from "@chainsafe/bls";
(async () => {
await init("herumi");
const secretKey = bls.PrivateKey.fromKeygen();
// class-based interface
const secretKey = SecretKey.fromKeygen();
const publicKey = secretKey.toPublicKey();
const message = new Uint8Array(32);
const signature = secretKey.sign(message);
console.log("Is valid: ", signature.verify(publicKey, message));
// functional interface
const sk = secretKey.toBytes();
const pk = secretKeyToPublicKey(sk);
const sig = sign(sk, message);
console.log("Is valid: ", verify(pk, message, sig));
})();
```
@ -66,12 +73,12 @@ yarn add @chainsafe/bls @chainsafe/blst
```
```ts
import bls from "@chainsafe/bls";
import {init} from "@chainsafe/bls";
try {
await bls.init("blst-native");
await init("blst-native");
} catch (e) {
await bls.init("herumi");
await init("herumi");
console.warn("Using WASM");
}
```
@ -80,13 +87,14 @@ The API is identical for all implementations.
## Spec versioning
| Version | Bls spec version |
| Version | Bls spec hash-to-curve version |
| ------- | :--------------: |
| 5.x.x | draft #9 |
| 2.x.x | draft #7 |
| 1.x.x | draft #6 |
| 0.3.x | initial version |
> [spec](https://github.com/ethereum/eth2.0-specs/blob/v0.11.1/specs/phase0/beacon-chain.md#bls-signatures)
> [spec](https://github.com/ethereum/eth2.0-specs/blob/v1.0.0/specs/phase0/beacon-chain.md#bls-signatures)
> [test vectors](https://github.com/ethereum/eth2.0-spec-tests/tree/master/tests/bls)