"An encryption algorithm designed to protect calls on GSM phones has been broken by three cryptographers using only a dual-core, Intel -based Dell Latitude PC running Linux.
"In a just-released paper, the three researchers from the Weizmann Institute of Science in Rehovot, Israel, described a technique they developed called a "sandwich attack," which they used to derive the complete 128-bit key of the Kasumi encryption algorithm. Kasumi, otherwise known as A5/3, is the block cipher used to encrypt communications on 3G wireless networks."
