I am happy to announce the release of VIFF version 0.6: Tar/GZ: http://viff.dk/release/viff-0.6.tar.gz Tar/BZ2: http://viff.dk/release/viff-0.6.tar.bz2 Zip: http://viff.dk/release/viff-0.6.zip Exe: http://viff.dk/release/viff-0.6.win32.exe
Executive summary of the changes since VIFF 0.5: The average time for a secure comparison was reduced by 60-70%. Comparisons now work with an actively secure multiplication protocol. A memory leak was fixed. Converted documentation to new Sphinx format, please see: http://viff.dk/doc/index.html More details: * A new prss_lsb function in viff.prss efficiently produces a share of a random field element together with a GF256 share of its least significant bit. This made comparisons 3-4 times faster. * New default flavors has been added to viff.comparison which uses the actively secure multiplication protocol. Actively secure comparisons take about twice as long as passive secure comparisons. * When data was sent and received empty deque objects were left behind in the ShareExchanger.incoming_data dictionaries. That caused a memory leak which is now fixed. An example application, gc-test.py, was added to test this and similar problems. * The documentation is now generated using Sphinx and aims to be more like a manual than purely an API documentation. The extended section on program counters is an example of this. * Fixed a bug that made 'GF256(1) != GF256(1)' return 'True'. * Calling '~GF256(255)' would throw a KeyError, fixed. * Issue 19: Make Runtime.convert_bit_share actively secure. -- Martin Geisler
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