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:

  1. Based on secure hardware.
    • The hardware is usually temper-proof to some extents, but the system is usually proprietary with mandatory NDA required, such as Yubikey.
  2. Based on generic microcontroller, with gnuk firmware developed by Niibe Yutaka.
    • It allows 100% free hardware design and software, but the chip is not hardened for security thus vulnerable to physical attacks.

In other words, the user is forced to choose between security and transparency.

But thanks to the IoT hype, many NDA-free and regulation-free "secure elements" for cryptograpic key storage have entered the market. This project is going to perform early experiments with a ATECC508A chip by Atmel, and see if it is possible to integrate it to the gnuk USB token to improve the physical security, allowing users to secure their private data with GnuPG with a high degree of physical security.

Looking for hackers with the skills:

gnupg gpg pgp security cryptography embedded arm microcontroller stm32 atmega

This project is part of:

Hack Week 17

Activity

  • over 6 years ago: biergaizi added keyword "stm32" to this project.
  • over 6 years ago: biergaizi added keyword "atmega" to this project.
  • over 6 years ago: biergaizi added keyword "gnupg" to this project.
  • over 6 years ago: biergaizi added keyword "gpg" to this project.
  • over 6 years ago: biergaizi added keyword "pgp" to this project.
  • over 6 years ago: biergaizi added keyword "security" to this project.
  • over 6 years ago: biergaizi added keyword "cryptography" to this project.
  • over 6 years ago: biergaizi added keyword "embedded" to this project.
  • over 6 years ago: biergaizi added keyword "arm" to this project.
  • over 6 years ago: biergaizi added keyword "microcontroller" to this project.
  • over 6 years ago: biergaizi started this project.
  • over 6 years ago: biergaizi originated this project.

  • Comments

    • TBro
      over 6 years ago by TBro | Reply

      Did you heard of: https://www.nitrokey.com/de Seems to be open hardware =)

    Similar Projects

    Contributing to Linux Kernel security by pperego

    Description

    A couple of weeks ago, I found this blog post by Gustavo Silva, a Linux Kernel contributor.

    I always strived to start again into hacking the Linux Kernel, so I asked Coverity scan dashboard access and I want to contribute to Linux Kernel by fixing some minor issues.

    I want also to create a Linux Kernel fuzzing lab using qemu and syzkaller

    Goals

    1. Fix at least 2 security bugs
    2. Create the fuzzing lab and having it running

    The story so far

    • Day 1: setting up a virtual machine for kernel development using Tumbleweed. Reading a lot of documentation, taking confidence with Coverity dashboard and with procedures to submit a kernel patch
    • Day 2: I read really a lot of documentation and I triaged some findings on Coverity SAST dashboard. I have to confirm that SAST tool are great false positives generator, even for low hanging fruits.
    • Day 3: Working on trivial changes after I read this blog post: https://www.toblux.com/posts/2024/02/linux-kernel-patches.html. I have to take confidence with the patch preparation and submit process yet.
      • First trivial patch sent: using strtruefalse() macro instead of hard-coded strings in a staging driver for a lcd display
      • Fix for a dereference before null check issue discovered by Coverity (CID 1601566) https://scan7.scan.coverity.com/#/project-view/52110/11354?selectedIssue=1601566
    • Day 4: Triaging more issues found by Coverity.
      • The patch for CID 1601566 was refused. The check against the NULL pointer was pointless so I prepared a version 2 of the patch removing the check.
      • Fixed another dereference before NULL check in iwlmvmparsewowlaninfo_notif() routine (CID 1601547). This one was already submitted by another kernel hacker :(
    • Day 5: Wrapping up. I had to do some minor rework on patch for CID 1601566. I found a stalker bothering me in private emails and people I interacted with me, advised he is a well known bothering person. Markus Elfring for the record.
    • Wrapping up: being back doing kernel hacking is amazing and I don't want to stop it. My battery pack is completely drained but changing the scope gave me a great twist and I really want to feel this energy not doing a single task for months.

      I failed in setting up a fuzzing lab but I was too optimistic for the patch submission process.

    The patches

    1


    Migrate from Docker to Podman by tjyrinki_suse

    Description

    I'd like to continue my former work on containerization of several domains on a single server by changing from Docker containers to Podman containers. That will need an OS upgrade as well as Podman is not available in that old server version.

    Goals

    • Update OS.
    • Migrate from Docker to Podman.
    • Keep everything functional, including the existing "meanwhile done" additional Docker container that is actually being used already.
    • Keep everything at least as secure as currently. One of the reasons of having the containers is to isolate risks related to services open to public Internet.
    • Try to enable the Podman use in production.
    • At minimum, learn about all of these topics.
    • Optionally, improve Ansible side of things as well...

    Resources

    A search engine is one's friend. Migrating from Docker to Podman, and from docker-compose to podman-compose.


    CVE portal for SUSE Rancher products by gmacedo

    Description

    Currently it's a bit difficult for users to quickly see the list of CVEs affecting images in Rancher, RKE2, Harvester and Longhorn releases. Users need to individually look for each CVE in the SUSE CVE database page - https://www.suse.com/security/cve/ . This is not optimal, because those CVE pages are a bit hard to read and contain data for all SLE and BCI products too, making it difficult to easily see only the CVEs affecting the latest release of Rancher, for example. We understand that certain costumers are only looking for CVE data for Rancher and not SLE or BCI.

    Goals

    The objective is to create a simple to read and navigate page that contains only CVE data related to Rancher, RKE2, Harvester and Longhorn, where it's easy to search by a CVE ID, an image name or a release version. The page should also provide the raw data as an exportable CSV file.

    It must be an MVP with the minimal amount of effort/time invested, but still providing great value to our users and saving the wasted time that the Rancher Security team needs to spend by manually sharing such data. It might not be long lived, as it can be replaced in 2-3 years with a better SUSE wide solution.

    Resources

    • The page must be simple and easy to read.
    • The UI/UX must be as straightforward as possible with minimal visual noise.
    • The content must be created automatically from the raw data that we already have internally.
    • It must be updated automatically on a daily basis and on ad-hoc runs (when needed).
    • The CVE status must be aligned with VEX.
    • The raw data must be exportable as CSV file.
    • Ideally it will be written in Go or pure Shell script with basic HTML and no external dependencies in CSS or JS.


    Model checking the BPF verifier by shunghsiyu

    Project Description

    BPF verifier plays a crucial role in securing the system (though less so now that unprivileged BPF is disabled by default in both upstream and SLES), and bugs in the verifier has lead to privilege escalation vulnerabilities in the past (e.g. CVE-2021-3490).

    One way to check whether the verifer has bugs to use model checking (a formal verification technique), in other words, build a abstract model of how the verifier operates, and then see if certain condition can occur (e.g. incorrect calculation during value tracking of registers) by giving both the model and condition to a solver.

    For the solver I will be using the Z3 SMT solver to do the checking since it provide a Python binding that's relatively easy to use.

    Goal for this Hackweek

    Learn how to use the Z3 Python binding (i.e. Z3Py) to build a model of (part of) the BPF verifier, probably the part that's related to value tracking using tristate numbers (aka tnum), and then check that the algorithm work as intended.

    Resources


    OIDC Loginproxy by toe

    Description

    Reverse proxies can be a useful option to separate authentication logic from application logic. SUSE and openSUSE use "loginproxies" as an authentication layer in front of several services.

    Currently, loginproxies exist which support LDAP authentication or SAML authentication.

    Goals

    The goal of this Hack Week project is, to create another loginproxy which supports OpenID Connect authentication which can then act as a drop-in replacement for the existing LDAP or SAML loginproxies.

    Testing is intended to focus on the integration with OIDC IDPs from Okta, KanIDM and Authentik.

    Resources


    SUSE Prague claw machine by anstalker

    Project Description

    The idea is to build a claw machine similar to e.g. this one:

    example image

    Why? Well, it could be a lot of fun!

    But also it's a great way to dispense SUSE and openSUSE merch like little Geekos at events like conferences, career fairs and open house events.

    Goal for this Hackweek

    Build an arcade claw machine.

    Resources

    In French, an article about why you always lose in claw machine games:

    We're looking for handy/crafty people in the Prague office:

    • woodworking XP or equipment
    • arduino/raspi embedded programming knowledge
    • Anthony can find a budget for going to GM and buying servos and such ;)


    Grapesss: a physical Shamir's Secret Sharing application [ESP32-C3 + Mobile] by ecandino

    drawing

    Description

    A couple of years ago I created StegoSecretS, a small cli used to encrypt and split a secret into multiple keys, using the Shamir's Secret Sharing algorithm.

    The idea is to re-implement the project using physical devices. One device alone will be useless, but when close together they can be used to decrypt the secret.

    On a practical side the user encrypts the secret with a mobile application. The same application is used to split the secret, and load the partial keys into different micro-controllers. Another user will be able to decrypt the secret only having at least N devices close together (using the application).

    I'm planning to use a couple of ESP32-C3 I bought, and build a very simple Android mobile application.

    Goals

    • Learn about Rust and micro-controllers (ESP32-C3)
    • Learn about mobile applications (Android and Kotlin)

    Resources