Projects in the topic cryptography

distributed card games, a.k.a. mental poker

an invention by AndreasStieger

Mental poker is a principle and also specific protocol to play card games without a single trusted party. This includes shuffling cards, enforcing card visibility and commitment schemes. Imagine playing rock-paper-scissors via phone only. libTMCG is an implementation of the protocol and SecureSkat is an application of this protocol/library to the popular German card game Skat.

Updated over 2 years ago. 2 hacker ♥️.

Tools to make keysigning fun again (replacement for caff)

an idea by kbabioch

There is a tool called caff, which is the de-facto standard when dealing with keysigning (on a large scale, e.g. after a key signing party). This tool hasn't been touch in years, is written and configured in Perl (hence cannot be read and/or maintained :smile:) and is not easy to package, because of a lot of dependencies, etc. It is not even available in our default repositories (at least for Tumbleweed). In general there seems to be a certain kind of frustration with this software, but there is no real alternative available yet. Ideally the new toolset should allow to organize a complete keysigning party, e.g. it should assist the organizer with:

Updated over 2 years ago. 8 hacker ♥️. Has no hacker: grab it!

Improving the Security of OpenPGP USB Token with a Secure Chip

a project by biergaizi

OpenPGP Card is an ISO/IEC 7816-4 compatible smartcard that is integrated with many OpenPGP functions, including signature, encryption, and authentication. It provides an trustful computing environment isolated from the host computer, to guard one's private keys from attacks and exposures. ZetiControl in Germany is the first manufacturer of OpenPGP Card based on BasicCard platform. Since then, compatible USB tokens have also been manufactured, such as Yubikey and Nitrokey. Currently for compatible USB tokens, there are two approaches of OpenPGP Card implementation:

Updated over 3 years ago. No love.