Decrypt WiFi keys on Android

Who wouldn't want to learn how to decrypt WiFi keys? This is something that also applies to Internet connections. It has been a long time since we can enjoy a connection without the need to use cables, which is known as Wifi. The advantages of using a Wi-Fi connection are many, such as not having to do extra installation, being able to move freely around our house with a connected device and even remain connected with walls between our equipment and the router. It also has another advantage, but for those who do not want to pay for the connection: they can decrypt WiFi keys from our neighbors to connect to the internet without paying.

In this article we will talk about everything related to decrypting Wifi keys using a device Android. But before starting, I would like to make a call to "Fair Play" and sanity: if we decipher the password of a neighbor who is paying for his connection, what does not seem like an option is to start downloading heavy content that will reduce his connection. It is one thing to be able to consult Facebook, look at a couple of web pages or send an email and quite another is to download an Ubuntu DVD, for example. In other words, if we steal their Wifi from the neighbor, they should not notice it and can use it at 99.99%.

And so that they do not apply this method with you, you may be interested know who is connected to your WiFi network. Now yes, let's find out how decrypt WiFi using our Android device.

Can you decrypt Wifi keys on Android?

Yes, you can find out the WiFi password. Especially if the wireless network we are trying to decrypt has WEP encryption. It is an encryption that is hardly used anymore, but it is still possible to find a network in WEP that will make our task much easier. We can get a WEP key by brute force and it will only be a matter of time before we get it.

Now if the network has WPA encryption, the thing is more complicated. Decrypting a WPA key requires what is known as a “handshake” and that is not so easy. What can be done easily is to get a WPA key that has not been modified. The theory is very simple: if the "Morrotel company" offers routers of the brand “Wifitel”, the keys will always be the same, but not all routers they will have the same. I mean that there will be for example 1.000 keys of routers “Wifitel” to be used by “Morrotel”. There are some applications that have these keys stored and can do this type of brute force using the available dictionaries. Other applications can achieve much more.

Applications to decrypt free wifi keys on Android

How to decrypt WiFi WEP keys with bcmon

The one that works best is bc mon. It can be downloaded from HERE (download at your own risk) and is a very interesting tool with which we can decipher Wifi keys.

Here we tell you how find out WiFi password with this app, but you have to know that not all devices are compatible.

1. We have to r a compatible device that has the Broadcom bcm4329 or bcm4330 Wifi chipset, such as the Nexus 7, the Samsung Galaxy S, Galaxy Y, Nexus One, Desire HD, Micromax A67. The best way to do this would be to install the Cyanogen ROM on it.
2. We download, install and run bcmon. It is likely that you will have to allow the installation of unofficial applications from the device settings.
3. We played on «run bcmon terminal«, Which will open something similar to the Linux Terminal. We wrote "airodump-ng»(Without the quotation marks) and we touch Intro. This will load the necessary application.
4. Then we write «airodump-ng wlan0»And press Enter again.
5. We identify the network that we want to decrypt from the list of access points that we will see. We have to choose one with WEP encryption.
6. We write down the MAC address of the network that we have chosen in step 5. We also write down the channel the network is on.
7. We begin to scan the channel to collect information, something that can take several hours. We will do it by writing (without the quotes) «airodump -ng -c channel # –Bssid MAC address -w output ath0«, Where the underlined will be the information of the network chosen in step 5. We press enter and Airodump will start scanning. It is best to let the device do its work, so we will leave it alone connected to a power outlet. At least 20.000 packages must be collected, although the more we collect, the more likely we are to crack the key.
8. Once we have the necessary packages, we can begin to decrypt the key using the command «aircrack –ng output * .cap»(Always without the quotes) and pressing enter.
9. If we see the message "Found!", We would already have it. A hex key will appear. For example, if we see 12: 34: 56: 78: 90, the key will be 1234567890.

How to decrypt WPA WiFi keys with bcmon + Reaver

1. We have to r a compatible device that has the Broadcom bcm4329 or bcm 4330 Wifi chipset, such as the Nexus 7, the Samsung Galaxy S, Galaxy Y, Nexus One, Desire HD, Micromax A67. The best way to do this would be to install the Cyanogen ROM on it.
2. We download, install and run bcmon. It is likely that you will have to allow the installation of unofficial applications from the device settings.
3. We download the Reaver .apk. It is available at THIS LINK.
4. We open Reaver and confirm that we are not going to use it illegally. Reaver will scan for available access points.
5. We touch on the network that we want to crack.
6. If it asks us to check if it is in monitor mode, let's open bcmon again and check it.
7. We check that in the Reaver settings the box «Automatic advanced settings«.
8. We started the attack by tapping on «Start attack»In the menu at the bottom of Reaver. The monitor will open and we can see the results on a new screen.

How to recover Wifi key on Android

If what we want is recover our own Wifi key on Android, we can do it in different ways.

Router keygen

Perhaps the most famous application is Router keygen. As its name suggests, this application is a "key generator for routers". It is true that it does not decrypt keys, but it can give us default keys for the following routers:

• Thomson
• SpeedTouch
• Orange
• Infinity
• BBox
• DMax
• Bigpond
• O2Wireless
• otenet
• Cyta
• DLink (only some models)
• Pirelli Discus
• Eircom
• Verizon FiOS (only some models)
• Alice AGPF
• FASTWEB Pirelli and Telsey
• Huawei (some Infinitum)
• wlan_XXXX
• jazztel_XXXX (Comtrend and Zyxel)
• Wlan_XX (some models)
• Ono (P1XXXXXX0000X)
• wlanXXXXXX
• YacomXXXXXX
• WifiXXXXXX (aka wlan4xx)
• Sky V1,
• box v1 and v2 (TECOM)

Its operation is as simple as looking at the available networks, touching on a Supported or Probably Not Supported and testing the keys it offers us. You have more information in THIS LINK.

Download Router Keygen on Google Play

WiFi Manager

Very similar to Router Keygen is Wi-Fi Manager. It also has dictionaries that will allow us to connect to routers They have not changed the default password, but it has a better design than the old application. In addition, it also offers a kind of map in which we will see where the networks are, which will allow us to connect to the network that offers us the best connection.

Download WiFi Manager on Google Play

WLAN Audit

Another application like the previous two is WLAN Audit, which will be able to decrypt the keys as long as they are in WEP. If the network we want to decrypt is WPA it will not be able. The use of this application is very simple: we touch on one of the networks that it shows us and if it can calculate it, it will. If not, we will see that it says "Impossible to calculate".

Download WLANAudit

Recovering the keys stored on our device

We can also see the keys stored on our device, something we can achieve with applications like

• Wifi Credentials.
• Wi-Fi Key Recovery (need root).
• Wi-Fi Key Recovery [ROOT].
• Wifi Password Recovery [ROOT].

Is it legal to use apps to crack WiFi keys?

Noel article 286 of organic law 15/2003 say what

"will be punished with a prison sentence of six to two years and a fine of six to twenty-four months to anyone who, without the consent of the service provider and for commercial purposes, facilitates intelligible access to a radio or television broadcasting service, to interactive services provided remotely electronically, or provide conditional access to them, considered as an independent service, through: manufacture, import, distribution, made available electronically, sale, rental or possession of any equipment or computer program, not authorized in another Member State of the European Union […]”. In point 4 of the same article he highlights “Whoever uses the equipment or programs that allow unauthorized access to conditional access services or telecommunication equipment, will be imposed the penalty provided for in article 255 […]".

In summary, it is not legal and, unsurprisingly, the punishment will be greater for those who offer a service to crack passwords for profit, who can be punished with up to two years in prison. This means that he would not enter if he pays a bond, since the minimum to enter safely is two years and one day, but he would find his bones in jail if he has a criminal record.

Having said all the above, it is best to always use our own Wi-Fi and forget about problems that can be triggered by learning how to decrypt Wi-Fi keys. Although it is also true that other users could steal our connection. If we want that our password be safe, it is best to do the following:

1. Change the default password to another.
2. If you use WEP encryption, we switch to WPA. If possible, to WPA2.
3. Hide our network. In theory, this will prevent programs from seeing the network, and if they cannot see it, they will not be able to initiate any attacks. To connect our own devices we will have to put the name of our network (with exactly the same upper and lower case), the type of network and our password.

Have you managed to recover your Wifi key or learn to how to decrypt WiFi keys unknown?