@firefly-exchange/library-sui
Version:
Sui library housing helper methods, classes to interact with Bluefin protocol(s) deployed on Sui
67 lines (66 loc) • 2.75 kB
JavaScript
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var __importStar = (this && this.__importStar) || function (mod) {
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Object.defineProperty(exports, "__esModule", { value: true });
exports.OnboardingSigner = void 0;
const secp = __importStar(require("@noble/secp256k1"));
const sha256_1 = require("@noble/hashes/sha256");
const library_1 = require("../library");
const types_1 = require("../types");
class OnboardingSigner {
/**
* Creates hash of given message and signs it with given private key or web3 provider
* @param message string to be sign
* @param signer RawSigner
* @returns signature
*/
static async createOnboardSignature(message, signer) {
if (!signer) {
throw Error(`Invalid signer`);
}
const msgHash = (0, sha256_1.sha256)((0, library_1.hexToBuffer)(message));
const signedMsg = await signer.signPersonalMessage(msgHash);
return signedMsg.signature;
}
/**
* Recovers user address from the signature and compares it with given public address
* @param address public address of user
* @param message message to be signed
* @param signature
* @returns
*/
static verifyOnboardSignature(address, message, signature) {
const signatureWithR = (0, library_1.hexToBuffer)(signature);
if (signatureWithR.length == 65) {
const sig = signatureWithR.subarray(0, 64);
const rByte = signatureWithR[64];
const hash = (0, library_1.hexToBuffer)(message);
const publicKey = secp.recoverPublicKey(hash, sig, rByte, true);
const secp256k1PK = new types_1.Secp256k1PublicKey(publicKey);
return secp256k1PK.toSuiAddress() === address;
}
return false;
}
}
exports.OnboardingSigner = OnboardingSigner;