Blostream

A high speed stream cipher

Ali H. Kashmar, Eddie Shahril Ismail

Research output: Contribution to journalArticle

Abstract

Although stream ciphers are widely utilized to encrypt sensitive data at fast speeds, security concerns have led to a shift from stream to block ciphers, judging that the current technology in stream cipher is inferior to the technology of block ciphers. This paper presents the design of an improved efficient and secure stream cipher called Blostream, which is more secure than conventional stream ciphers that use XOR for mixing. The proposed cipher comprises two major components: the Pseudo Random Number Generator (PRNG) using the Rabbit algorithm and a nonlinear invertible round function (combiner) for encryption and decryption. We evaluate its performance in terms of implementation and security, presenting advantages and disadvantages, comparison of the proposed cipher with similar systems and a statistical test for randomness. The analysis shows that the proposed cipher is more efficient, high speed, and secure than current conventional stream ciphers.

Original languageEnglish
Pages (from-to)1111-1128
Number of pages18
JournalJournal of Engineering Science and Technology
Volume12
Issue number4
Publication statusPublished - 1 Apr 2017

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Statistical tests
Cryptography

Keywords

  • Combiner algorithm
  • Cryptography
  • Non-linear invertible round function
  • Stream cipher

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Blostream : A high speed stream cipher. / Kashmar, Ali H.; Ismail, Eddie Shahril.

In: Journal of Engineering Science and Technology, Vol. 12, No. 4, 01.04.2017, p. 1111-1128.

Research output: Contribution to journalArticle

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