OV-Chip 2.0 Download Page

This page contains material of the OV chip 2.0 project that is not suited for a wiki.

Papers

Performance issues of Selective Disclosure and Blinded Issuing Protocols on Java Card by Hendrik Tews and Bart Jacobs, to appear in the proceedings of the workshop in information security, theory and practices (WISTP 2009).
copy: [ps.gz] [ps] [pdf] [dvi.tar.gz]

Releases

Because of patent issues the public releases of the OV-chip sources are missing a number of method bodies. These omissions prevent the compilation of the OV-chip applets and the graphical demonstrator. The algorithms that are implemented in these method bodies are extensively described in "Performance issues ..." paper (see above) and in Brands book Rethinking Public Key Infrastructures and Digital Certificates: Building in Privacy. It should therefore not be too hard to rewrite the missing methods.

The test applet (which produced most of the performance measurements on the OV-chip progress page, and a test frame for our Bignat library for big integers on Java Card are not affected by patent issues. They can always be build and run.

Download Realease tarball

current version: ov-chip-2-2010-09-20.tar.gz

If you really want to compile everything you can apply this patch. The patch will give you syntactically correct Java code, but the missing method bodies will still be missing. Therefore some of the applets and programs won't run correctly.

For Windows users a zip file containing generated and preprocessed sources is provided as ov-chip-2-2010-09-20.zip, see file README.WINDOWS.

Documentation of the OV-chip sources

The following material is available

The OV-chip 2.0 hacker guide The guide is also available in pdf and postscript format.
The hacker guide contains already a lot of information, but it currently is still very incomplete.
The API documentation. The API documentation is complete.

last changed by 20 Sep 2010 by Hendrik