Development

Adventures in Porting: GnuPG 2.1.x to Android!

March 15, 2012

PGP started with Phil Zimmerman’s Pretty Good Privacy, which is now turned into an open IETF standard known as OpenPGP. These days, the reference …

Our new F-Droid App Repository (out of date!)

March 15, 2012

Update: this blog post has been changed to reference our new FDroid repository at https://guardianproject.info/fdroid. If you are still using the old …

ObscuraCam v2 ALPHA (with video!)

March 2, 2012

We’ve been making exciting progress with our work on ObscuraCam, part of the SecureSmartCam project with our partner WITNESS. The biggest jump forward …

How many ways to store 5 numbers?

February 23, 2012

At the core of all software that aims to be secure, private and anonymous is encryption, or as I think of it, amazing math tricks with really large …

Free SIP Providers with ZRTP support

February 22, 2012

This post is part of a series on our work researching the Open Secure Telephony Network. After you have CSipSimple installed on your mobile handset, …

Open Source SIP Client for Android

February 22, 2012

The first step in the Open Secure Telephony Network (OSTN) is a client. We can’t make a phone call without a phone. In this case there are three …

Open Secure Telephony Network

February 22, 2012

Over the last two months, I have been working on a project to research and develop a set of tools to provide secure peer to peer Voice over IP on the …

Strong Mobile Passwords with Yubikey USB Token

January 4, 2012

We have been experimenting with the Yubikey, a USB hardware password token, a bit over the last few weeks and would like to share our initial …

SQLCipher for Android v1 FINAL!

November 29, 2011

 Team GP along with the good folks at Zetetic, are happy to announce that we have reached FINAL on our first release (“v1” 0.0.6 build) of SQLCipher …

Progress on Mobile Video Privacy Tools

September 10, 2011

If you are a developer you may just want to skip all the prose below, and just jump over to Github to find our new FFMPEG on Android project{.vt-p} …