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A secure self-synchronized stream cipher

Daneshgar, A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1093/comjnl/bxy053
  3. Publisher: Oxford University Press , 2018
  4. Abstract:
  5. We follow two main objectives in this article. On the one hand, we introduce a security model called LORBACPA+ for self-synchronized stream ciphers which is stronger than the blockwise LOR-IND-CPA, where we show that standard constructions as delayed CBC or similar existing self-synchronized modes of operation are not secure in this stronger model. Then, on the other hand, following contributions of Millérioux et al., we introduce a new self-synchronized stream cipher and prove its security in LORBACPA+ model. © The British Computer Society 2018. All rights reserved
  6. Keywords:
  7. Self-synchronized stream cipher ; Unknown input observer ; Cryptography ; Modes of operation ; Security model ; Standard constructions ; Stream ciphers ; Symmetric cryptography ; Synchronization
  8. Source: Computer Journal ; Volume 61, Issue 8 , August , 2018 , Pages 1182-1201 ; 00104620 (ISSN)
  9. URL: https://academic.oup.com/comjnl/article-abstract/61/8/1180/5005423