tokenlon-sdk/lib/utils/sign.js

imToken Tokenlon API for node

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var ethUtil = require("ethereumjs-util");
var helper_1 = require("./helper");
// sig is buffer
exports.concatSig = function (ecSignatureBuffer) {
    var v = ecSignatureBuffer.v, r = ecSignatureBuffer.r, s = ecSignatureBuffer.s;
    var vSig = ethUtil.bufferToInt(v);
    var rSig = ethUtil.fromSigned(r);
    var sSig = ethUtil.fromSigned(s);
    var rStr = helper_1.leftPadWith0(ethUtil.toUnsigned(rSig).toString('hex'), 64);
    var sStr = helper_1.leftPadWith0(ethUtil.toUnsigned(sSig).toString('hex'), 64);
    var vStr = ethUtil.stripHexPrefix(ethUtil.intToHex(vSig));
    return ethUtil.addHexPrefix(rStr.concat(sStr, vStr)).toString('hex');
};
exports.personalECSign = function (privateKey, msg) {
    var message = ethUtil.toBuffer(msg);
    var msgHash = ethUtil.hashPersonalMessage(message);
    return ethUtil.ecsign(msgHash, new Buffer(privateKey, 'hex'));
};
exports.personalSign = function (privateKey, msg) {
    var sig = exports.personalECSign(privateKey, msg);
    return ethUtil.bufferToHex(exports.concatSig(sig));
};
exports.personalECSignHex = function (privateKey, msg) {
    var _a = exports.personalECSign(privateKey, msg), r = _a.r, s = _a.s, v = _a.v;
    var ecSignature = {
        v: v,
        r: ethUtil.bufferToHex(r),
        s: ethUtil.bufferToHex(s),
    };
    return ecSignature;
};
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