文章基本信息

标题：Security Provisions in Stream Ciphers Through Self Shrinking and Alternating Step Generator
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作者：Hafsa Rafiq ; Malik Sikandar Hayat Kiyal ; Aihab Khan 等
期刊名称：International Journal of Advanced Computer Science and Applications(IJACSA)
印刷版ISSN：2158-107X
电子版ISSN：2156-5570
出版年度：2011
卷号：2
期号：8
DOI：10.14569/IJACSA.2011.020802
出版社：Science and Information Society (SAI)
摘要：in cryptography stream ciphers used to encrypt plain text data bits one by one. The security of stream ciphers depend upon randomness of key stream, good linear span and low probability of finding the initial states of pseudorandom generators. In this paper we propose a new stream cipher model use Feed back with carry shift registers (FCSRs) as building blocks which are considered as a source of long pseudorandom generator. Proposed model is the combined structure of alternating step generator and self shrinking generators which are commonly used stream ciphers generators. In this research we compare proposed generator against self shrinking generator (SSG), Alternating step generator (ASG) and alternating step self shrinking generator (ASSG) and we concludes that proposed generator architecture is best for encryption because it satisfies all necessary conditions of a good Stream cipher.
关键词：thesai; IJACSA; thesai.org; journal; IJACSA papers; component; Alternating step generators ; Feed back with carry shift registers; Self shrinking generators.