@alepop/lisk-musig
v0.1.2
Published
Three round m-of-m key aggregation for Lisk using the MuSig signature scheme
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@alepop/lisk-musig
Three round m-of-m key aggregation for Lisk using the MuSig signature scheme
Installation
npm install @alepop/lisk-musig
Usage
import * as musig from "@alepop/lisk-musig";
import { TransferTransaction } from "@liskhq/lisk-transactions";
import { verifyData, bufferToHex } from "@liskhq/lisk-cryptography";
const keys1 = musig.generateKeyPairFromPassphrase(/* mnemonica */);
const keys2 = musig.generateKeyPairFromPassphrase(/* mnemonica */);
const config = new musig.Config([keys1.publicKey, keys2.publicKey]);
const aggregatePublicKey = config.publicKey;
const tx = new TransferTransaction({
recipientId: "18160565574430594874L",
amount: "1000",
networkIdentifier:
"e48feb88db5b5cf5ad71d93cdcd1d879b6d5ed187a36b0002cc34e0ef9883255",
senderPublicKey: aggregatePublicKey
});
const session1 = new musig.Session(config, keys1, tx);
const session2 = new musig.Session(config, keys2, tx);
/* round 1 */
const c1 = session1.getLocalCommitment();
const c2 = session2.getLocalCommitment();
session1.setRemoteCommitment(...c2);
session2.setRemoteCommitment(...c1);
/* roun 2 */
const n1 = session1.getLocalNonce();
const n2 = session2.getLocalNonce();
session1.setRemoteNonce(...n2);
session2.setRemoteNonce(...n1);
/* round 3 */
const s1 = session1.getLocalSignature();
const s2 = session2.getLocalSignature();
session1.setRemoteSignature(...s2);
session2.setRemoteSignature(...s1);
/* Verify the signature */
const signature = session1.aggregateSignature;
const isValid = verifyData(
tx.getBytes(),
bufferToHex(signature),
aggregatePublicKey
);