Liveness Signal

0.9.1

Institute of Networks and Security

0.00

0 reviews

10+
Downloads

Free

Prototype app for sensing and verifying liveness signals for whistleblowers

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About Liveness Signal

Liveness Signal is a communication app developed by Institute of Networks and Security.

How many times has Liveness Signal been downloaded?

Liveness Signal has been downloaded 30 times. In the last 30 days, the app was downloaded 0 times.

What is the rating of Liveness Signal?

Liveness Signal has no ratings yet.

Is Liveness Signal free?

Liveness Signal is free to download. The APK download size is 7.77 MB. The latest version available is 0.9.1. The last update was on December 1, 2023.

What are the requirements for Liveness Signal?

The app has a content rating of Everyone. The app has been available on Google Play December 2023.

Description

Liveness Signal allows sending and verifying simple binary signals through third party servers while retaining full anonymity and plausible deniability. A prover (for example, a whistleblower) can post a new signal based on a schedule to previously agreed to with a verifier (for example, a journalist) to indicate that they are well. Both the prover and verifier use the same app with an agreed signal key (for example, a password) and exchange a one-time pairing. After that, all contact happens through a configurable third-party server over Tor onion services and remains anonymous to all parties. Verifiers can check if a new signal has been posted, but signals contain no other identifying content. Local storage is in the app is encrypted with a user chosen app password. Entering a wrong password will not yield an error message, and signals can still be sent and verified, but will not be linked to the correct chain of signals that you get when entering the correct app password. This property makes it plausible deniable that a user is either a prover or a verifier - without the correct password, they can be interchangeable.

For communicating with the storage server over Tor, a separate app such as Orbot or TorServices needs to be installed and started.

This app is a prototype implementation of the protocol described in the publication "Anonymously publishing liveness signals with plausible deniability" at The 21st International Conference on Advances in Mobile Computing and Multimedia Intelligence (MoMM 2023), Springer LNCS. It is not meant for usage where human live may depend upon it, but as a prototype for future integration into other (for example, social messaging) apps. Source code is available at https://github.com/rmayr/livenesssignal-android.

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More data about Liveness Signal

Price	Free to download
Total downloads	30
Recent downloads	0
Rating	No ratings
Ranking	Not ranked
Version	0.9.1
APK size	7.77 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

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Alternative downloads for the Liveness Signal app

Liveness Signal compared with similar apps

Common keywords of similar apps

Signals Liveness Prototype Plausible Prover Verifier Correct Verifying Party Deniability Agreed Server Tor Storage User Entering App Signal Password

Keywords missing from this app

Device Privacy Apps Security Secure Verification Number Passwords Accounts Access Virtual Verify Private Media Features Easy Data Recent Lock Information Code Users Identity Time Root Work Social Phone End Built Protect Personal Account Numbrify Check Devices Calls Https Briar Key Numbers Supported Settings Messages Source Based System

Downloads over time

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Liveness Signal has been downloaded 30 times. Over the past 30 days, it has been downloaded 0 times.

Changelog of Liveness Signal

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Developer information for Institute of Networks and Security

Institute of Networks and Security

rm@ins.jku.at

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Google Play Rankings for Liveness Signal

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Technologies used by Liveness Signal

4 permissions

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