Signing

Question: central server, federated, or p2p? Answer: all!

September 18, 2014

There are many ideas of core architectures for providing digital services, each with their own advantages and disadvantages. I break it down along the …

Introducing TrustedIntents for Android

July 30, 2014

Following up on our research on secure Intent interactions, we are now announcing the first working version of the TrustedIntents library for Android. …

New Official Guardian Project app repo for FDroid!

June 30, 2014

We now have an official FDroid app repository that is available via three separate methods, to guarantee access to a trusted distribution channel …

Security in a thumb drive: the promise and pain of hardware security modules, take one!

March 28, 2014

Hardware Security Modules (aka Smartcards, chipcards, etc) provide a secure way to store and use cryptographic keys, while actually making the whole …

Improving trust and flexibility in interactions between Android apps

January 21, 2014

Activity1 sending an Intent that either Activity2 or Activity3 can handle. Android provides a flexible system of messaging between apps in the form …

Keys, signatures, certificates, verifications, etc. What are all these for?

December 12, 2013

For the past two years, we have been thinking about how to make it easier for anyone to achieve private communications. One particular focus has been …

Getting keys into your keyring with Gnu Privacy Guard for Android

December 6, 2013

Now that you can have a full GnuPG on your Android device with Gnu Privacy Guard for Android, the next step is getting keys you need onto your device …

Setting up your own app store with F-Droid

November 5, 2013

(This blog post as now been cooked into an updated HOWTO) The Google Play Store for Android is not available in all parts of the world, US law …

Issues when distributing software

October 31, 2013

There is currently a discussion underway on the Debian-security list about adding TLS and Tor functionality to the official repositories (repos) of …

User scenarios to guide our crypto development

April 14, 2012

At Guardian Project, we find user-centered development to be essential to producing useful software that addresses real world needs. To drive this, we …