A high-efficient multimedia cipher using a filter chaos-based pseudo random number generator

Tun Kai Yao, Ching Han Chen, Chia Ming Kuo

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This study presents a Chaos-Based Pseudo Random Number Generator (CPRNG) hardware to generate the chaotic bit-sequence. To improve the generated bit-sequence of the chaotic equation, the results of the CPRNG pass through a filter. This approach generates a bit-sequence with greater variation than the original chaotic equation. The proposed approach uses a 32-bit fixed point arithmetic to implement a Filter Chaos-Based Pseudo Random Number Generator (FCPRNG) that can generate a 32-bit random number, and an Encryption Engine Unit (EEU) or Decryption Engine Unit (DEU) uses 2 bits of the random sequence to encrypt a fixed length of the multimedia data.

Original languageEnglish
Pages (from-to)71-78
Number of pages8
JournalInternational Journal of Signal and Imaging Systems Engineering
Volume4
Issue number2
DOIs
StatePublished - Jul 2011

Keywords

  • Chaos based
  • Chaotic equation
  • Cryptosystem
  • Field-programmable gate array
  • FPGA
  • Image encryption
  • Key based
  • LFSR
  • Linear feedback shift register
  • Multimedia cipher
  • Pseudo random number
  • Random number generator

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