mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-12-23 09:52:26 +01:00
408addb1b2
Signing now always takes a 64 digit hex string, and returns a message signature which appropriately pads r, s, and v with zeroes. Need to verify with Denis that this is the behavior he requires.
77 lines
2.4 KiB
JavaScript
77 lines
2.4 KiB
JavaScript
const ethUtil = require('ethereumjs-util')
|
|
|
|
module.exports = IdManagement
|
|
|
|
function IdManagement(opts) {
|
|
if (!opts) opts = {}
|
|
|
|
this.keyStore = opts.keyStore
|
|
this.derivedKey = opts.derivedKey
|
|
this.hdPathString = "m/44'/60'/0'/0"
|
|
|
|
this.getAddresses = function(){
|
|
return keyStore.getAddresses(this.hdPathString).map(function(address){ return '0x'+address })
|
|
}
|
|
|
|
this.signTx = function(txParams){
|
|
// normalize values
|
|
txParams.to = ethUtil.addHexPrefix(txParams.to)
|
|
txParams.from = ethUtil.addHexPrefix(txParams.from)
|
|
txParams.value = ethUtil.addHexPrefix(txParams.value)
|
|
txParams.data = ethUtil.addHexPrefix(txParams.data)
|
|
txParams.gasLimit = ethUtil.addHexPrefix(txParams.gasLimit || txParams.gas)
|
|
txParams.nonce = ethUtil.addHexPrefix(txParams.nonce)
|
|
var tx = new Transaction(txParams)
|
|
|
|
// sign tx
|
|
var privKeyHex = this.exportPrivateKey(txParams.from)
|
|
var privKey = ethUtil.toBuffer(privKeyHex)
|
|
tx.sign(privKey)
|
|
|
|
// Add the tx hash to the persisted meta-tx object
|
|
var txHash = ethUtil.bufferToHex(tx.hash())
|
|
var metaTx = configManager.getTx(txParams.metamaskId)
|
|
metaTx.hash = txHash
|
|
configManager.updateTx(metaTx)
|
|
|
|
// return raw serialized tx
|
|
var rawTx = ethUtil.bufferToHex(tx.serialize())
|
|
return rawTx
|
|
}
|
|
|
|
this.signMsg = function (address, message) {
|
|
// sign message
|
|
var privKeyHex = this.exportPrivateKey(address);
|
|
var privKey = ethUtil.toBuffer(privKeyHex);
|
|
var msgSig = ethUtil.ecsign(new Buffer(message.replace('0x',''), 'hex'), privKey);
|
|
var rawMsgSig = ethUtil.bufferToHex(concatSig(msgSig.v, msgSig.r, msgSig.s));
|
|
return rawMsgSig;
|
|
};
|
|
|
|
this.getSeed = function(){
|
|
return this.keyStore.getSeed(this.derivedKey)
|
|
}
|
|
|
|
this.exportPrivateKey = function(address) {
|
|
var privKeyHex = ethUtil.addHexPrefix(this.keyStore.exportPrivateKey(address, this.derivedKey, this.hdPathString))
|
|
return privKeyHex
|
|
}
|
|
}
|
|
|
|
function pad_with_zeroes(number, length){
|
|
var my_string = '' + number;
|
|
while (my_string.length < length) {
|
|
my_string = '0' + my_string;
|
|
}
|
|
return my_string;
|
|
}
|
|
|
|
function concatSig(v, r, s) {
|
|
r = pad_with_zeroes(ethUtil.fromSigned(r), 64)
|
|
s = pad_with_zeroes(ethUtil.fromSigned(s), 64)
|
|
r = ethUtil.stripHexPrefix(r.toString('hex'))
|
|
s = ethUtil.stripHexPrefix(s.toString('hex'))
|
|
v = ethUtil.stripHexPrefix(ethUtil.intToHex(v))
|
|
return ethUtil.addHexPrefix(r.concat(s, v))
|
|
}
|