Password checking in android

Checking password in Android

I want to check the password and i have a password field for that in Android

When i write a random wrong password it works fine but when i write the correct password, the application shuts down, Why it doesnt work for me ? (btw. i have another class screen2.)

Answers

Start New Activity as if password is correct :

and also make sure you have added your Next Activity in AndroidManifest.xml as:

I Found the solution:

Take a look at this cool article, I think that’s exactly what you want :

In short : you want to add this permission to your manifest :

For api >= 23, you’ll need to request the runtime permission Settings.ACTION_MANAGE_OVERLAY_PERMISSION

Then in a service, get the window manager

and add your views with the addView method

I tried to put this in a comment, but I think this is important enough to put in an answer.

The scheme proposed by OP is not necessarily a violation of CWE-257. The proposal does not allow a system administrator (say) to recover the old passwords.

The proposal is to use the new password as the encryption key for all of the old passwords. If you can live with the «new password verification» living on the client and not the server, then this is no less secure than encrypting anything else using the password.

So the «change password» gadget would be client-side code. The server would send the encrypted list of N earlier passwords, which the client could decrypt with the user’s current password and then re-encrypt with the user’s new password. At no time does the server have enough information to determine any of the passwords, whether old or new. Only the client has this information, but it has that in any case. The difference being that an attacker who learned your current password could also learn your old passwords. Since learning your current password is already a disaster, this does not strike me as all that much worse.

True, this does not guard against the «attack» of an employee writing their own password change utility to get around the password restrictions, since the validation is not done on the server side. But in no way is this a violation of CWE-257, in my opinion.

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How to See Saved WiFi Password on Android Device?

While Android has a lot of unique and useful features, it often lacks some basic functions which other operating systems offer. One of them is the ability to view the password of the saved WiFi networks on your device. It is currently not possible to see saved WiFi passwords without root access on your Android device. Though, it is still good to know that there is a workaround to get the WiFi password saved on Android.

Even though there are other options like using your laptop or directly contacting the responsible people to ask the password, using your Android phone to view saved WiFi passwords is probably the simplest way.

Update: For Android Q users, there is no need to use any third-party apps to see the WiFi password. Your phone can display the WiFi password on Android Q direct.

Solution 1: Get WiFi Password for Android 10 Users.

Android 10 users can see the saved WiFi password direct from their mobile. There is no device rooting or third party app required for this. You can see the WiFi password on Android networking settings and share it if you want.

1. Open Android Settings
2. Select Network & Internet.
3. Tap on WiFi.
4. Next, tap on the name of the connected Wi-Fi network.
5. This will bring you to the Network Details Screen.
6. Tap on the Share button.
7. Authenticate with fingerprint (You can use the PIN to verify as an alternative method).
8. See the WiFi password below the QR code.

You can see the detailed description to see the WiFi password on Android 10 here. For those who are using the old Android OS, check the solutions mentioned below. The solutions have options for both rooted and non-rooted Android version.

Solution 2: ES File Explorer (No Root Required)

ES File Explorer gives the user privileged access to the system files. The app also comes with a lot of other useful features like taking backups and restoring your apps. It is also being able to restore your deleted files.

This method doesn’t require root access but, unfortunately, it is not guaranteed to work on all devices. You can still give it a try if you want, by following the below steps.

Open ES File Explorer app. Drag the left navigation bar and select the Local storage option. Now, click on Device from the drop-down list. Navigate to System->etc->WiFi and open wpa_supplicant.conf file. If the file manager app asks you how to open the selected configuration file, select the built-in HTML or the text file viewer. Once you open the file, you will be able to view all the passwords of the connected WiFi networks using your Android phone.

Download from Google Play Store: ES File Explorer | APK Mirror

Solution 3: File Explorer App (Root Only)

The steps are a little different if you have root access. With root access, the steps can be more easy and reliable. The simplest and the most straightforward way to view the saved WiFi passwords on the rooted Android device is to use, again, the ES File Explorer. This is because, unlike the default file manager app that might come with your phone, it allows you to view system-level files if it has the superuser access to rooted devices.

Follow the below instructions to view your saved WiFi network passwords. Open the ES File Explorer app on your rooted Android device and navigate to the root folder. Now, from the root folder, go to data > misc > WiFi location. Inside the WiFi folder, search and open the same file that we mentioned before – wpa_supplicant.conf.

Navigate to the network section. By using the SSID of your WiFi network, you can find the corresponding WiFi password under the psk section which is the pre-shared key of each WiFi network you have connected to.

network=<
ssid=”WiFi Network Name”
psk=”password”
key_mgmt=WPA-PSK
priority=
>

This format of the file will be almost like above and you can grab the network password from the same spot, that we mentioned above.

Solution 4: Password Recovery App

Even though the above method is easy and straightforward, it does involve some additional steps to find the right file and interpreting the password. If you want to see the saved WiFi passwords directly without having to do anything, then using a password recovery app might be the ideal choice.

There are a lot of password recovery apps available for free on Google Play Store and most of them work as expected. Just for the demonstration purpose, we are using WiFi Passwords Recovery Pro app for this tutorial.

Download and install the app. Now, open the app and then grant superuser permission to function properly. The app will list all the WiFi networks you have connected with your device along with their security protocols. You can select any network you want and the app will simply display the password of that particular network. This app even allows you to copy the password and share it. There is another alternative app you can try from Google Play Store WiFi Password Recovery.

Solution 5: Laptop and ADB Tools

There is one more way where you can view the saved WiFi passwords on your device without having to use a file explorer or a password recovery app. But for this method, you will need your laptop and have to connect your phone with it using a USB cable.

Step 1: Setup ADB Tools and Phone Connection

First, ensure that you have the USB drivers of your smartphone and ADB tools installed on the Windows Laptop or PC. If you don’t have the ADB tools and drivers installed on your PC yet, download and install ADB Tools from this link.

Once you have downloaded the files, extract them to a folder on your desktop. Open the Settings app on your Android phone and go to the About phone. There, tap on the build number of seven times to unlock the developer options.

Go back to the main settings page and then open the developer options settings from there and enable the USB debugging.

Step 2: Extract WiFi Password File

Now, connect your phone to the PC using the USB cable. Then go to the folder on your desktop where you have extracted the ADB tools. Hold Shift and then Right-Click and select the “open command window here” option from the menu that pops up. Now copy and paste the below command to your command window and press enter.

adb pull /data/misc/wifi/wpa_supplicant.conf

The command basically copies the contents of the file “wpa_supplicant.conf” from the mentioned directory above. It pastes the contents to a file in the folder where you have extracted the ADB tools.

Go back to the folder and you will find the file there. Open it and you can view all the saved WiFi passwords of connected networks in the file.

Since we are now using WiFi wherever we go, this is one of the essential hacks that you need to know and remember. This will make your life that much easier every day.

See WiFi Password on Android

Being able to find WiFi password on Android have a lot of benefits like connecting to networks you used a long time ago, and not having to ask passwords in public places again. It becomes a chore when you want to connect some of your other devices to the WiFi network or share it with someone when you don’t remember it.

Let us know which one of these above-mentioned methods to see the WiFi password on Android, worked for you. Feel free to mention in the comments section below if you have any queries or doubts regarding the method or if you are stuck at any step.

Disclosure: Mashtips is supported by its audience. As an Amazon Associate I earn from qualifying purchases.

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WiFi Password Check: How to Know WiFi Password on Android mobile, iPhone, Windows and macOS

Here’s a step-by-step guide on how to check the WiFi password on Android, iOS, Windows and macOS platforms

Forgetting your WiFi password is more common than you think. Many users tend to connect their smartphone and laptop to their home WiFi network and then forget the password, which is a problem when you need to connect a new device or share the password with visiting friends and family. In case you haven’t saved the WiFi password somewhere easily accessible, the good news is that there are several ways to find out what it is. There are different ways to know the WiFi password of any saved network or router on different platforms. In this article, we are going to take you through a step-by-step guide on how to check the WiFi password on Android, iOS, Windows and macOS platforms. So, without further ado, let’s begin.

How to Find WiFi Password on Windows PC or Laptop

There are different ways to know a WiFi password on a Windows-powered laptop or desktop. You can easily know the password of the WiFi network or router that you are currently connected to. In order to do that, you can follow these steps:

• Open the Start Menu and search for Network Status. Alternatively, Right Click on the WiFi symbol at the bottom right corner of the screen and click on Open Network & Internet Settings.
• Now click on the Change Adapter Options. A new window will pop-up that will show you the Wi-Fi connection.
• Double Click on the Wi-Fi and then click on Wireless Properties.

Once you do that, you will see two options – Connection and Security. Go to Security and check the Show Characters box. With this, you will be able to see the password of the WiFi network or modem you are currently connected to.

Interestingly, there is also a way to know the password of the other saved networks on your Windows-powered device. All you need to do is follow these steps:

• Open the Start Menu and type Command Prompt
• Run the following command: netsh wlan show profile
• You will see the list of all saved WiFi networks. Pick the network you want to know the password and then run the following command: netsh wlan show profile **** key=clear. (Replace *** with network name you found in the list).
• Once done, you will see the WiFi password of that particular network or modem under the Security Settings.

How to Check WiFi Password on macOS Laptops

There is also a way to find the password of the WiFi networks on macOS. The operating system has an application known as Keychain Access. The app keeps a track of all the passwords you have stored on your macOS. Using the application, you can easily know the WiFi password of any WiFi network that was connected to your MacBook or Mac. Here’s a step-by-step guide to check for WiFi password on macOS:

• Open the Keychain Access app on your Mac.
• You will find an option on the top toolbar called Passwords. Click on it.
• In the search bar, enter the name of the network for which you want to know the password. Once done, double click on the network name.
• A pop-up window will appear showing you the details of the network. Click on Show Password. The system will ask for your administrator user credentials.
• Once you enter your system password, you will be able to see the password of the WiFi network.

How to Get WiFi Password on Android Mobile

Android offers a hidden way to know saved WiFi passwords easily. If you are running on Android 10 or later, you might be able to view the WiFi password of the saved networks on your smartphone. In order to that, you need to follow these steps:

• Go to the Settings app and head to WiFi & Network.
• Click on either the gear or lock icon next to your connected or saved network which you need the password for.
• Click on Share Password. You might need to use your fingerprint or pin to unlock this screen.
• You will now see a QR code on the screen, with the password written below it.
• You can choose to either share the password directly, or if it’s a complicated one, ask the person you want to share it with to scan the QR code using their phone.

How to Know WiFi Password on iOS Mobiles

Finding the WiFi password on an iOS device is complicated. Apple is quite strict with privacy and security, which is why it is next to impossible to know the WiFi password of the saved networks on your iPhone. However, there is one workaround. But for that, you will need a macOS machine. The guide does not work on any Windows laptop or PC. So, if you have a macOS system and you want to know the check WiFi password on iOS, you need to follow these steps:

• On your iPhone, to go Settings and go to the iCloud option. There you will find the Keychain option. Toggle it on.
• Next, go back to Settings and turn on Personal Hotspot.
• Now, on your Mac, connect to your iPhone’s personal hotspot. Once the hotspot is connected to your Mac, you can open Spotlight search (CMD+Space) and type Keychain Access.
• Press enter and you can search for a WiFi network for which you want to know the password.
• There will be a pop-up window that will show you the details of the network. Click on Show Password. The system will ask for your administrator user credentials.
• Once done, you will be able to see the password of the WiFi network.

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