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SSID是wifi名称 ，密码是wifi密码，（要有网络情况下才能破解）

主要代码：

public class MainActivity extends Activity

{

Context mContext = this;

TextView textView;

WifiStatus wifiStatus;

Handler mHandler;

final int UPDATE_TEXT = 1;

@Override

protected void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

textView = (TextView) findViewById(R.id.content);

wifiStatus = new WifiStatus(mContext);

mHandler = new Handler()

{

public void handleMessage(Message msg) {

switch (msg.what) {

case UPDATE_TEXT:

textView.setText(msg.obj.toString());

break;

}

}

};

showWifiStatus();

}

public void btnWifi(View v)

{

try {

Toast.makeText(mContext, "查询中...", Toast.LENGTH_SHORT).show();

new Thread(new Runnable() {

@Override

public void run() {

try {

Message msg = new Message();

msg.what = UPDATE_TEXT;

msg.obj = new mkQuerypwd().getpwd();

mHandler.sendMessage(msg);

} catch (Exception e) {

e.printStackTrace();

}

}

}).start();

} catch (Exception e) {

e.printStackTrace();

}

}

public void showWifiStatus() {

wifiStatus.scanWifi();

textView.setText("");

}

}

public class WifiStatus {

  WifiManager wifiManager;

  static List wifiList;

  public WifiStatus(Context mContext){

    wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);

    if(!wifiManager.isWifiEnabled()){

      wifiManager.setWifiEnabled(true);

      Toast.makeText(mContext, "WIFI启动中...", Toast.LENGTH_SHORT).show();

    }

  }

  public void scanWifi(){

    wifiManager.startScan();

    wifiList = wifiManager.getScanResults();

  }

}

public class mkQuerypwd {

  public String getpwd() throws Exception{

    String salt = "LQ9$ne@gH*Jq%KOL";

    Map map = new TreeMap<>();

    map.put("och", "wandoujia");

    map.put("ii", "");

    map.put("appid", "0001");

    map.put("pid", "qryapwd:commonswitch");

    map.put("lang", "cn");

    map.put("v", "58");

    map.put("uhid", "a0000000000000000000000000000001");

    map.put("method", "getDeepSecChkSwitch");

    map.put("st", "m");

    map.put("chanid", "guanwang");

    map.put("sign", "");

    map.put("bssid", "");

    map.put("ssid", "");

    map.put("dhid", this.getdhid());

    map.put("mac", "d8:86:e6:6f:a8:7c");

    StringBuilder bssid = new StringBuilder();

    StringBuilder ssid = new StringBuilder();

    for (ScanResult i : WifiStatus.wifiList){

      bssid.append(i.BSSID).append(",");

      ssid.append(i.SSID).append(",");

    }

    map.put("bssid", bssid.toString());

    map.put("ssid", ssid.toString());

    map.put("sign", getSign(map, salt));

    String response = sendRequest(map);

    JSONObject jsonObject = new JSONObject(response);

    JSONObject psws = jsonObject.getJSONObject("qryapwd").getJSONObject("psws");

    Iterator iterator = psws.keys();

    StringBuilder result = new StringBuilder();

    while (iterator.hasNext()){

      String item = iterator.next();

      String encryptpwd = psws.getJSONObject(item).getString("pwd");

      String decryptpwd = decrypt(encryptpwd);

      int pwdLength = Integer.parseInt(decryptpwd.substring(0, 3));

      String pwd = decryptpwd.substring(3, decryptpwd.length()-1).substring(0, pwdLength);

      String name = psws.getJSONObject(item).getString("ssid");

      result.append("BSSID: ").append(item).append("\nSSID: ").append(name).append("\n密码: ").append(pwd).append("\n\n");

    }

    if (TextUtils.isEmpty(result.toString())){

      return "没找到密码 ˉ\\_(ツ)_/ˉ";

    }

    return result.toString();

  }

  public String getdhid() throws Exception {

    String salt = "LQ9$ne@gH*Jq%KOL";

    Map map = new TreeMap<>();

    map.put("capbssid", "d8:86:e6:6f:a8:7c");

    map.put("model", "Nexus+4");

    map.put("och", "wandoujia");

    map.put("appid", "0001");

    map.put("mac", "d8:86:e6:6f:a8:7c");

    map.put("wkver", "2.9.38");

    map.put("lang", "cn");

    map.put("capbssid", "test");

    map.put("uhid", "");

    map.put("st", "m");

    map.put("chanid", "guanwang");

    map.put("dhid", "");

    map.put("os", "android");

    map.put("scrs", "768");

    map.put("imei", "355136052333516");

    map.put("manuf", "LGE");

    map.put("osvercd", "19");

    map.put("ii", "355136052391516");

    map.put("osver", "5.0.2");

    map.put("pid", "initdev:commonswitch");

    map.put("misc", "google/occam/mako:4.4.4/KTU84P/1227136:user/release-keys");

    map.put("sign", "");

    map.put("v", "58");

    map.put("sim", "");

    map.put("method", "getTouristSwitch");

    map.put("scrl", "1184");

    map.put("sign", getSign(map, salt));

    String dhid;

    String response = sendRequest(map);

    JSONObject jsonObject = new JSONObject(response);

    dhid = jsonObject.getJSONObject("initdev").getString("dhid");

    return dhid;

  }

  public String getSign(Map map, String salt) throws Exception {

    String value = "";

    for (Object o : map.entrySet()) {

      Map.Entry entry = (Map.Entry) o;

      value += entry.getValue();

    }

    value += salt;

    MessageDigest messageDigest = MessageDigest.getInstance("MD5");

    byte[] digest = messageDigest.digest(value.getBytes("UTF-8"));

    BigInteger number = new BigInteger(1, digest);

    String md5 = number.toString(16);

    while (md5.length() < 32) {

      md5 = "0" + md5;

    }

    return md5.toUpperCase();

  }

  public String getRequestData(Map params) throws Exception {

    StringBuilder stringBuilder = new StringBuilder();

    for (Object o : params.entrySet()) {

      Map.Entry entry = (Map.Entry) o;

      stringBuilder.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "UTF-8")).append("&");

    }

    stringBuilder.deleteCharAt(stringBuilder.length() - 1);

    return stringBuilder.toString();

  }

  public String sendRequest(Map params) throws Exception{

    URL url = new URL("http://wifiapi02.51y5.net/wifiapi/fa.cmd");

    HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();

    httpURLConnection.setDoInput(true);

    httpURLConnection.setDoOutput(true);

    httpURLConnection.setRequestMethod("POST");

    httpURLConnection.setUseCaches(false);

    httpURLConnection.setInstanceFollowRedirects(true);

    httpURLConnection.setRequestProperty("Content-type", "application/x-www-form-urlencoded");

    httpURLConnection.setRequestProperty("Host", "wifiapi02.51y5.net");

    httpURLConnection.setRequestProperty("Accept", "text/plain");

    httpURLConnection.connect();

    BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(httpURLConnection.getOutputStream()));

    bufferedWriter.write(getRequestData(params));

    bufferedWriter.flush();

    bufferedWriter.close();

    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(httpURLConnection.getInputStream()));

    StringBuilder response = new StringBuilder();

    String Line;

    while ((Line = bufferedReader.readLine())!=null){

      response.append(Line).append("\n");

    }

    bufferedReader.close();

    httpURLConnection.disconnect();

    return response.toString();

  }

  public String decrypt(String encryptpwd) throws Exception{

    String key = "jh26@`~78vLsvpos";

    String iv = "j#bd0@vp0sj!3jnv";

    SecretKeySpec secretKey = new SecretKeySpec(key.getBytes(), "AES");

    IvParameterSpec ivParameterSpec = new IvParameterSpec(iv.getBytes());

    Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");

    cipher.init(Cipher.DECRYPT_MODE, secretKey, ivParameterSpec);

    return new String(cipher.doFinal(hex2byte(encryptpwd)));

  }

  public byte[] hex2byte(String hex){

    byte[] output = new byte[hex.length()/2];

    for (int i = 0,j = 0; i < hex.length(); i += 2, j++)

    {

      String str = hex.substring(i, i + 2);

      output[j] = (byte) Integer.parseInt(str, 16);

    }

    return output;

  }

}

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