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implement rpc message signing

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This commit is contained in:
ansuz 2017-03-16 14:45:38 +01:00
parent d85a42c776
commit e8c3cf6aa5
1 changed files with 24 additions and 14 deletions
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38
www/common/rpc.js
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@ -4,12 +4,19 @@ define([
'/bower_components/tweetnacl/nacl-fast.min.js',
], function (Encode) {
var MAX_LAG_BEFORE_TIMEOUT = 30000;
var Nacl = window.nacl;
var uid = function () {
return Number(Math.floor(Math.random() * Number.MAX_SAFE_INTEGER))
.toString(32).replace(/\./g, '');
};
var signMsg = function (type, msg, signKey) {
var toSign = JSON.stringify([type, msg]);
var buffer = Nacl.util.decodeUTF8(toSign);
return Nacl.util.encodeBase64(Nacl.sign(buffer, signKey));
};
/*
types of messages:
pin -> hash
@ -24,14 +31,14 @@ types of messages:
messages have the format:
[TYPE, txid, msg]
*/
var sendMsg = function (ctx, type, msg, cb) {
var sendMsg = function (ctx, type, signed, id, cb) {
var network = ctx.network;
var hkn = network.historyKeeper;
var txid = uid();
ctx.pending[txid] = cb;
return network.sendto(hkn, JSON.stringify([txid, type, msg]));
return network.sendto(hkn, JSON.stringify([txid, signed, id]));
};
var parse = function (msg) {
@ -68,18 +75,19 @@ types of messages:
}
};
var cookie = function (ctx, cb) {
// TODO txid
};
var create = function (network, edPrivateKey, edPublicKey) {
var signKey = Nacl.util.decodeBase64(edPrivateKey);
var signMsg = function (msg, secKey) {
// TODO
};
var create = function (network, edPrivateKey) {
if (!/[0-9a-f]{64}/.test(edPrivateKey)) {
//throw new Error("private signing key is not valid");
try {
if (signKey.length !== 64) {
throw new Error('private key did not match expected length of 64');
}
} catch (err) {
throw new Error("private signing key is not valid");
}
// TODO validate public key as well
var ctx = {
//privateKey: Encode.hexToUint8Array(edPrivateKey),
seq: new Date().getTime(),
@ -91,13 +99,15 @@ types of messages:
var pin = function (channel, cb) { };
var send = function (type, msg, cb) {
return sendMsg(ctx, type, msg, cb);
// construct a signed message...
var signed = signMsg(type, msg, signKey);
return sendMsg(ctx, type, signed, edPublicKey, cb);
};
network.on('message', function (msg, sender) {
onMsg(ctx, msg);
});
return {
cookie: function (cb) { cookie(ctx, cb); },
send: send,
};
};