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PEK: Privacy Enhanced Keyboard

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Comments are appreciated. We will keep improving PEK.


PEK is a novel context aware privacy enhancing keyboard for touch-enabled device. When a user inputs normal text like an email or a message, PEK shows a normal QWERTY keyboard or a system default keyboard. However, every time a user of a touch-enabled device presses a password input box on the screen, PEK will randomly shuffle the positions of the characters on the keyboard and show this randomized keyboard to the user. PEK's usability is well preserved since PEK is context aware. That is, a randomized keyboard shows up only when a user inputs a password or pin, and users do NOT input passwords quite often in their daily use of a touch-enabled device.

PEK can resist various attacks including the fingerprint attack disclosing passwords from fingerprints left on touch screen, attacks by malicious apps reading orientation and accelerometer data to infer tapped passwords, attacks utilizing vibrations of tapping keys, attacks exploiting thermal residue of finger left on the pressed keys on a keypad in order to infer tapped keys or pins, and various shoulder surfing attacks.

How to Configure and Use PEK
After PEK is installed, please configure the settings of an Android phone to use PEK.
1. Go to "Settings" -> "Language & input" as shown in Screenshot 3.
2. Check "Privacy Enhancing Keyboard", as shown in Screenshot 4.
3. Press "OK" and ignore the "Attention" warning, as shown in Screenshot 5. This is a generic warning when you install a third-party keyboard. Note: We collect nothing from users.
3. Set PEK as a default keyboard by clicking "Default".
4. Done. It should work as promised.
Note: If you want to use our keyboard PEK to unlock your device, please first follow the steps above. Then go to "Settings" -> "Security" -> "Screen lock" and select "Password". Please do not use "PIN". Using a full keyboard is safer than using a pin keypad.


If you do NOT use PEK as a default keyboard, you first finish Steps 1 and 2 of the configuration above and will be able to switch from the current keyboard to PEK later. When you type your password in an input box,
1. Find a small keyboard icon on the top left notification bar while an input box gets the focus, as shown in Screenshot 6.
2. Slide down the notification bar, you can see a menu as shown in Screenshot 7 and tap the "Choose input method".
3. Select PEK as shown in Screenshot 8.
4. Done. Have fun!

Privacy Policy
The app collects nothing from users and does NOT request the Internet permission.

Free download from Shareware Connection - Comments are appreciated. We will keep improving PEK. PEK is a novel context aware privacy enhancing keyboard for touch-enabled device. When a user inputs normal text like an email or a message, PEK shows a normal QWERTY keyboard or ...

Publisher: Zhen Ling & Xinwen Fu | License: Freeware | Price: 0.00
Version: 1.0.1 | Size: 86 KB | Platform: Android 4.x
Released Date: 29-03-2015 | Rating: 0 | Title: PEK: Privacy Enhanced Keyboard

Author Url: https://sites.google.com/site/lingzhen1982/
Program Info Url: https://sites.google.com/site/lingzhen1982/
Download Url: https://sites.google.com/site/lingzhen1982/

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Shareware Connection periodically updates pricing and software information of 'PEK: Privacy Enhanced Keyboard' from company source 'Zhen Ling & Xinwen Fu' , so some information may be slightly out-of-date. You should confirm all information before relying on it. Software piracy is theft,  Using 'PEK: Privacy Enhanced Keyboard' crack, password, serial numbers, registration codes, key generators is illegal and prevent future development of PEK: Privacy Enhanced Keyboard.

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