An Improved Guess-and-Determine Attack on the A5/1 Stream Cipher

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چکیده

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An Improved Guess-and-Determine Attack on the A5/1 Stream Cipher

In Europe and North America, the most widely used stream cipher to ensure privacy and confidentiality of conversations in GSM mobile phones is the A5/1. In this paper, we present an improved guess-and-determine attack on the A5/1 stream cipher with an average time complexity of 248.5, which is much less than any known guessand-determine attack. The attack has a 100% success rate and requires a ...

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ژورنال

عنوان ژورنال: Computer and Information Science

سال: 2014

ISSN: 1913-8997,1913-8989

DOI: 10.5539/cis.v7n1p115