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Since KASUMI algorithm is forbidden to use commercially in China, a new f8 keystream generator is presented by using SMS4 as core algorithm in this paper. Then the new f8 is implemented in software to produce 100 groups 20000-bit keystreams with different cipher keys. Later, FIPS 140-2 is applied to these keystreams to test randomness. Based on the data obtained, six figures are drawn to specify the...
RC4 is one of the most widely used stream cipher. It is fairly simple and efficient, and is used, among other things, in WEP, TKIP and SSL/TLS protocols. Fluhrer, Mantin and Shamir show that RC4 is completely insecure in the WEP mode of operation, and most of the discovered weaknesses are related to the key-scheduling algorithm (KSA) part of RC4. Crainicu and Boian propose a new variant of key-scheduling...
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