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add cache for keys

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This commit is contained in:
Matias Alejo Garcia 2014-04-29 20:56:28 -03:00
commit 65698e7e45
2 changed files with 18 additions and 8 deletions
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2
config.template.js
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@ -17,7 +17,7 @@ var config = {
maxPeers: 15, maxPeers: 15,
// debug: 3, // debug: 3,
sjclParams: { sjclParams: {
salt: 'cc295e13e14edcc0', // choose your own salt (hex string) salt: 'mjuBtGybi/4=', // choose your own salt (base64)
iter:500, iter:500,
mode:'ccm', mode:'ccm',
ts:parseInt(64), ts:parseInt(64),

22
js/models/network/WebRTC.js
View file

@ -50,6 +50,7 @@ Network.prototype.cleanUp = function() {
this.authenticatedPeers=[]; this.authenticatedPeers=[];
this.copayerForPeer={}; this.copayerForPeer={};
this.connections={}; this.connections={};
this.keyCache={};
if (this.peer) { if (this.peer) {
console.log('## DESTROYING PEER INSTANCE'); //TODO console.log('## DESTROYING PEER INSTANCE'); //TODO
this.peer.disconnect(); this.peer.disconnect();
@ -362,12 +363,22 @@ Network.prototype.getPeer = function() {
return this.peer; return this.peer;
}; };
Network.prototype._keyForCopayerId = function(copayerId) {
var key=this.keyCache[copayerId];
if (key) return key;
var cBuf = new Buffer(copayerId,'hex');
var key = bitcore.util.sha256(cBuf).toString('base64');
this.keyCache[copayerId] = key;
return key;
};
Network.prototype._encryptFor = function(copayerId, payloadStr) { Network.prototype._encryptFor = function(copayerId, payloadStr) {
var cBits= sjcl.codec.hex.toBits(copayerId); var key = this._keyForCopayerId(copayerId);
var pass64= sjcl.codec.base64.fromBits(cBits);
var plainText = sjcl.codec.utf8String.toBits(payloadStr); var plainText = sjcl.codec.utf8String.toBits(payloadStr);
var p = this.sjclParams; // auth strength var p = this.sjclParams; // auth strength
ct = sjcl.encrypt(pass64, plainText, p);//,p, rp); ct = sjcl.encrypt(key, plainText, p);//,p, rp);
var c = JSON.parse(ct); var c = JSON.parse(ct);
var toSend = { var toSend = {
iv: c.iv, iv: c.iv,
@ -383,9 +394,8 @@ Network.prototype._decrypt = function(encStr) {
i[k] = this.sjclParams[k]; i[k] = this.sjclParams[k];
} }
var str= JSON.stringify(i); var str= JSON.stringify(i);
var cBits= sjcl.codec.hex.toBits(this.copayerId); var key= this._keyForCopayerId(this.copayerId);
var pass64= sjcl.codec.base64.fromBits(cBits); var pt = sjcl.decrypt(key, str);
var pt = sjcl.decrypt(pass64, str);
return pt; return pt;
}; };