Android: Determine Security Type of Wifi Networks in Range (Without Connecting to Them)

Android - detecting if wifi is WEP, WPA, WPA2, etc. programmatically

There is a way using the ScanResult object.

Something like this:

WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
List<ScanResult> networkList = wifi.getScanResults();

//get current connected SSID for comparison to ScanResult
WifiInfo wi = wifi.getConnectionInfo();
String currentSSID = wi.getSSID();

if (networkList != null) {
    for (ScanResult network : networkList) {
        //check if current connected SSID
        if (currentSSID.equals(network.SSID)) {
            //get capabilities of current connection
            String capabilities =  network.capabilities;
            Log.d(TAG, network.SSID + " capabilities : " + capabilities);

            if (capabilities.contains("WPA2")) {
                //do something
            } else if (capabilities.contains("WPA")) {
                //do something
            } else if (capabilities.contains("WEP")) {
                //do something
            }
        }
    }
}

References:

http://developer.android.com/reference/android/net/wifi/WifiManager.html#getScanResults()

http://developer.android.com/reference/android/net/wifi/ScanResult.html#capabilities

http://developer.android.com/reference/android/net/wifi/WifiInfo.html

android: Determine security type of wifi networks in range (without connecting to them)

ScanResult capabilities interpretation

How to get scanned wifi networks security type? And what is the network configuration required to connect to particular network using WiFi in android?

See answer given by ayj in this question.

In case link doesn't work in future, let me copy paste it for you here.

You need to parse the ScanResult's capabilities string in the scanComplete method. According to the Android developer documentation, :

ScanResult.capabilities describes the authentication, key management, and
encryption schemes supported by the access point.

You might be able to make use of -- or at the very least use as an example -- the static helper methods available in the AccessPointState class.

• AccessPointState.getScanResultSecurity
• AccessPointState.isEnterprise

Getting whether the wifi connection is locked(password protected) or not

See ScanResult.capabilities

An example is: [WPA-PSK-TKIP+CCMP][WPA2-PSK-TKIP-CCMP][WPS][ESS]

See this answer if you want to find a way of parsing it.

Basically, if you want to get if it is protected or not:

boolean isProtected = AccessPointState.getScanResultSecurity(scanResult) != AccessPointState.OPEN;

(although it is not nice to compare Strings with the == operator, this will always return the correct answer because the reference in AccessPointState is a static final one)

---

Related Topics