Android is an operating system for mobile devices such as smartphones and tablet computers. It is developed by the Open Handset Alliance led by Google.

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Show another number when calling mobile phone [duplicate]

Nowadays I heard that some cheaters make mobile calls to steal banking & other private information.They show private numbers like 911 to their victims. Is it possible show different number to ...
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1answer
450 views

Is it really true that Google knows most of the worlds wifi passwords

Computer World is reporting that Android devices phoning home have given Google a database with almost every wifi password in the world to it. Is this groundless hysteria, or a genuine concern? If ...
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2answers
335 views

Android side channels: what can one app observe about other apps?

What information can a malicious Android app observe about the behavior of other apps running on the same phone? In more detail, suppose app M is malicious and is running in the background. Suppose ...
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4answers
997 views

How can I make sure password hashing is secure on computers while not being prohibitively slow on mobile devices?

I'm new to cryptography and its implementations. I'm designing an Android app where an user enters a password to retrieve some encrypted data. After some research on possible solutions I ended up with ...
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1answer
352 views

Static analysis of Android applications using Androguard

I am building a project a part of which involves performing static analysis for Android applications. I know of Androguard and its tools that help in analyzing Android apks. But I am stuck and don't ...
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3answers
223 views

Safe parental control app for Android?

A lot of parents when they get smart phones (Android) for their children ask me whether I can install some kind of parental control app on the device (Even though I'm barely out of high school myself ...
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2answers
368 views

Are kiosk-style, full screen apps possible on iOS, Android, or Windows phone?

A popular car insurance company in the US has an app that displays "digital car insurance" papers. In the commercials, these apps are opened, and the user gives the unlocked phone to police officers. ...
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0answers
75 views

Adding one's own Cryptography Implementaion in Android

Since Android is allows for Java and Native implementation of Cryptography, I would like to know if we have to provide for a particular implementation of cryptographic algorithms(say just RSA for ...
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1answer
78 views

How does Look Out Secuirty and Anti-Virus determine if an app is harmeful?

For Android Lookout can scan an app before it is installed, and I think it scans a new app the first time it runs too. It displays the message "this app is safe" and I'm wondering, how does it ...
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1answer
112 views

Credential (et al) storage on Android - And general application credential storage inquiry [closed]

Please read before assuming this should go in another forum (like an android forum) - this is a Security question. Here is the scenario: Developing an health care based android application that has ...
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1answer
147 views

Android Device Support Lifecycles

A key consideration for most computer platforms is the availability of security patches for vulnerabilities which inevitably arise with them. Are there any available resources which provide ...
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2answers
2k views

How to sniff Bluetooth traffic using Android?

I have two Arduinos using Bluetooth to communicate one with another. Is it possible to sniff the Bluetooth conversation between the two devices? An Android solution would be great, I heard of hcidump ...
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2answers
2k views

How can I detect which background application is using the camera, microphone or GPRS?

I want to learn how to write and Android application that can detect a run time spy application. In this instance, a "spy application" is a background application that uses the camera, microphone and ...
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2answers
632 views

Writing Android Exploits [closed]

I want to learn how to detect and write exploits for the Android OS. I am a bit familiar with Linux and have some knowledge in scripting in ruby and python. I had learnt how to write Exploits for ...
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1answer
145 views

Why Google and smartphone manufacturers don't care about updates?

For Windows, Firefox/Chrome, Java, Flash critical updates are issued each couple weeks, and as far my understanding goes, it is REALLY bad not to install them ASAP. For my 3 year old Samsung ...
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1answer
624 views

Intercepting and reading SSL traffic generated by Android

I am trying to use my PC to capture, decrypt and analyse traffic from SSL sessions on my android tablet. So far, I have a ZAP proxy server set up, with a CA generated. On my android device, I have ...
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2answers
148 views

Does Centralisation Decrease the Probability but Increase the Damage of Exploits?

This question is, perhaps, a tad too abstract for a Q&A site. But it's been playing on my mind for a while, so I'm throwing it out there. Modern systems seem to be increasingly centralised. An ...
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2answers
615 views

What is the impact of the Bluebox Android APK integrity vulnerability?

Bluebox have recently disclosed a vulnerability (Android security bug 8219321) in Android, that is getting a lot of coverage in the media. The title of the post is "Uncovering Android Master Key" - ...
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1answer
23k views

Can the Gmail password be recovered from the Android Gmail app?

I have an Android device with the Gmail app installed. This app can access the mailbox so there must be some kind of authentication data stored on the device (possibly an application specific ...
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1answer
495 views

Possible to safely send money via Paypal on public wifi networks?

I will be away for 1 month and during that time period I will have Internet access only via public wifi networks. I tried finding on the net tutorial on how to safely access and handle paypal ...
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2answers
826 views

FIPS Compliance for my Android project

I am working on a security-related project and have to make sure it is FIPS 140-2 compliant. According to my understanding, FIPS compliance is compliance at hardware as well as software level. ...
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1answer
707 views

Track an Android phone through its IMEI

My mobile phone got stolen few days back. I tried all possibilities to track it, the only option is through IMEI. Can I know which SIM card is running on that specific IMEI?
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1answer
576 views

Android Encryption and USB Access

I'm investigating device encryption for my Android, but what is the impact on internal storage and external SD? Also, if the device is used as a flash drive or livedisk (DriveDroid), will I run into ...
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1answer
903 views

How to properly delete all data from cell phones?

Lately I've been thinking to get rid of some old smartphones; among them an Android device and a Blackberry. Not selling or recycling them is the ideal solution, however, I still would like to know ...
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3answers
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Why do a lot of Android apps (like Linkedin) require many unrelated privileges?

I wanted to install the Linkedin app on my Android phone and I was shocked when it asked for nearly all possible permissions including reading all of my private data and calendar data. Why does any ...
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1answer
63 views

Starting point for Mobile Device Security particularly in a MDM setting?

I am looking for some good reference material (books, blogs, names, etc..) regarding Mobile Device Security. I am specifically interested in Corporate Mobile Device Management (MDM) where often ...
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5answers
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How secure are iPhone/Android/Windows 8 “PIN”/Pattern Lock features?

Most modern (and tablet-oriented) operating systems now offer alternative ways of logging on other than a strong password. For example, iPhones offer a 4-digit PIN, Android devices offer this and a ...
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1answer
3k views

What is the difference between Serial Number and Thumbprint?

I have problems to understand what the difference between the Serial Number of a certificate and its SHA1 Hash is. the MSDN says: Serial number A number that uniquely identifies the ...
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1answer
191 views

Android soft keyboard architecture

I am new to Android. I am trying to figure out how exactly a soft keyboard on an Android device works. What exactly is the 'behind the scenes' process that takes place so that the application is ...
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3answers
2k views

How secure is wiping an encrypted Android device?

based on my previous knowledge, I know that the iPhone has hardware encryption implemented on recent models. When we issue the "Erase all contents and settings" command, the encryption keys are ...
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1answer
100 views

how malware is added to android app [closed]

I'm working on securing apps from malware attack in project. I just want to know how app is repackaged with malware. Because for reverse engg. we've apktool, dex2jar, Java decompiler. But how ...
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3answers
2k views

Strong encryption for base64 encoded public key in Android

I want to know how I can achieve strong encryption of a public key present in my Android application. It's Android's advice that To keep your public key safe from malicious users and hackers, do ...
2
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2answers
306 views

Android shared library integrity protection

Is there a way to somehow 'protect' a native shared library (.so) for the Android platform against binary changing? E.g. someone could overwrite a JMP instruction with a NOP after reverse engineering ...
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1answer
1k views

How do anti-virus apps for Android work?

There seems to be a lot of anti-virus apps for Android. On a desktop or server an anti-virus must run with super-user privileges, however I am pretty sure these mobile anti-viruses are running as an ...
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2answers
283 views

Is it possible to get data out of running application from non-rooted phone

I'am writing some small security report about Android devices in general related to accessing information from RAM. Main condition is that device initially is non-rooted. Use case: User opens ...
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2answers
713 views

Is GPG suitable as part of a password manager and generator?

I assume that GPG is very strong to crack, guess, etc. Since I have confidence in GPG, would it be appropriate to use my GPG key as the master key for a password manager or generator?
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3answers
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Recovering encrypted SD card after Android Factory Reset

I was using Active Sync on my Android Galaxy S2 and as a result it enforced encryption of the phone and SD card. Phone did a factory resync and now data on SD card is still encrypted. Is there a way ...
2
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1answer
498 views

Google Cloud Messaging Spoof

I have few question on security of Google Cloud Messaging Service (GCM) Is it possible to spoof messages that GCM server sends to android clients? Does server pushes data in encrypted format? Data ...
4
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1answer
777 views

Is there cryptographic material in a phone's SIM card that can be used with RSA encryption?

Given that a smart card stores a private key that can't be extracted, it appears that a SIM card is similar to a smart card in these respects. I need to store (or use an existing) private key on a ...
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3answers
4k views

Encrypt data within mobile app and send to web service

I'm developing a mobile application for Android and iOs. What is best practice when it comes to data encryption within the mobile application which will be sent to a web service? Basically I will ...
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1answer
2k views

Android / CyanogenMod encryption vs GNU/Linux

Hi I am trying to understand how encrypting an Android based phone works compared to a GNU/Linux host which relies on LUKS dm-crypt. Here is what I understand: Encrypted LVM on GNU/Linux is an ...
16
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2answers
23k views

Can Android phone running without SIM card be tracked (localized) by police?

I am running an Android phone without a SIM card. I am using it for web surfing. Can the police localize my phone using the cell towers (BTS)? In other words, I know Android phones emit radiations ...
3
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4answers
578 views

Strange android app … possibly a mass malware?

I started receiving on my android Samsung Galaxy note strange notifications in Mandarin (the language of the people of china). Once I click on the notification it opens my browser with a blank page ...
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1answer
2k views

Android Runtime Code Injection

I'm doing research for a static analysis tool to help detect malware in Android applications. I'm wondering if it is possible to perform code injection on Android without using a class loader. I ...
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2answers
3k views

Can wifi administrator see data transfer over android phone. precisely gmail app communication

sometimes I connect to wifi outside my home in office , restaurants and friends house. I want to know if wifi administrator can see the exact data my android phone communicates? I am only concerned ...
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1answer
461 views

How to use phone's Wifi tethering to demonstrate security vulnerabilities on phones [closed]

I am teaching a course to highschool students about computers, and I wanted to do something different for tomorrow class. I was thinking to teach them about wifi security vulnerabilities through a ...
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1answer
3k views

Android apk malware

I was browsing some website last night and that website suddenly sent me an apk called 'browser_update_install.apk', DrWeb light detect it and was able to delete it. My question here is about the apk ...
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3answers
879 views

Sending secure information from app with ssl

I'm a web developer, but I occasionally step over into doing some mobile app development here and there. A client recently asked me to help them develop a very simple app. The app is essentially just ...
2
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1answer
245 views

Data remanence on mobile devices

The methods in which data should be deleted is strictly enforced by the DoD as well as others security sensitive organizations. However, there are complications with deleting data on an SSD. Given ...
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2answers
196 views

Suspicious phone browser activity

On a droid Razr M, I used chrome to log in to Gmail instead of the app. It asked to log in as me on a toast at the bottom of the browser, taking my credentials from somewhere on the phone I assume. ...