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

Question

I am looking for a programmatic way on Android to determine whether the WIFI my device is currently connected to is "secured" using either WEP, WPA, or WPA2. I've tried Google searching and I cannot find a programmatic way to determine this. I've also looked at the TelephonyManager (http://developer.android.com/reference/android/telephony/TelephonyManager.html) which also lacks this information.

Thanks, J

Have you tried looking through [WifiManager](http://developer.android.com/reference/android/net/wifi/WifiManager.html) or [ConnectivityManager](http://developer.android.com/reference/android/net/ConnectivityManager.html)? — VERT9x, Mar 06 '15 at 18:53
For the current network you can find what you need in the WifiConfiguration of the WifiManager http://developer.android.com/reference/android/net/wifi/WifiConfiguration.html — Dave S, Mar 06 '15 at 19:17

Daniel Nugent · Accepted Answer · 2018-04-26T19:37:19.107

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

You wouldn't need to check for both WPA and WPA2. Checking for WPA alone is sufficient. — young_souvlaki, May 28 '16 at 18:54
@daniel . This shows capabilities supported by the access point. How to know that which security is used for the current connection — sureshbabu, Oct 11 '21 at 08:06

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

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