Android - 以编程方式检测 wifi 是否为 WEP、WPA、WPA2 等

Question

我正在寻找一种在 Android 上使用 WEP、WPA 或 WPA2 来确定我的设备当前连接到的 WIFI 是否“安全”的编程方式。我试过谷歌搜索，但找不到确定这一点的程序化方法。我还查看了同样缺少此信息的 TelephonyManager ( http://developer.android.com/reference/android/telephony/TelephonyManager.html)。

谢谢，J

Answer 1

有一种使用 ScanResult 对象的方法。

像这样:

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
            }
        }
    }
}

引用资料:

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