At the moment, there's a place holder file for the Kasumi algorithm found at: wireshark/epan/crypt/Kasumi.h And I found this dev thread form 2012 where the issue of Mitsubishi's patent on the algorithm (not the code) and the copyright issue with the Kasumi implementation found in ETSI's specifications were raised: https://www.wireshark.org/lists/wireshark-dev/201208/msg00080.html
Looks like the bottom line by Joerg Mayer was - If there is an implementation other than ETSI's we could add this one to Wireshark but leave default setting of not using it unless Wireshark is compiled with HAVE_UMTS_KASUMI defined (as seen in Kasumi.h). Can anyone back this? If this is the case I have just stumbled upon this cpp implemenation on github: https://github.com/randombit/botan/blob/5eca80aa3336dc49c721e9c6404f531f2e290537/src/lib/block/kasumi/kasumi.cpp which is both different from the implementation in the specifications and released under the 'Simplified BSD License'. If it was re-written in c, could we add that implementation to Wireshark?
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