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metamask-extension/app/scripts/lib/sig-util.js
2016-11-11 15:37:54 -08:00

29 lines
798 B
JavaScript

const ethUtil = require('ethereumjs-util')
module.exports = {
concatSig: function (v, r, s) {
const rSig = ethUtil.fromSigned(r)
const sSig = ethUtil.fromSigned(s)
const vSig = ethUtil.bufferToInt(v)
const rStr = padWithZeroes(ethUtil.toUnsigned(rSig).toString('hex'), 64)
const sStr = padWithZeroes(ethUtil.toUnsigned(sSig).toString('hex'), 64)
const vStr = ethUtil.stripHexPrefix(ethUtil.intToHex(vSig))
return ethUtil.addHexPrefix(rStr.concat(sStr, vStr)).toString('hex')
},
normalize: function (address) {
if (!address) return
return ethUtil.addHexPrefix(address.toLowerCase())
},
}
function padWithZeroes (number, length) {
var myString = '' + number
while (myString.length < length) {
myString = '0' + myString
}
return myString
}