• DocumentCode
    3107901
  • Title

    Random S-Box generation in AES by changing irreducible polynomial

  • Author

    Das, Indrajit ; Nath, Siddhartha ; Roy, Sandip ; Mondal, Sudipta

  • Author_Institution
    Dept. of CSE & IT, Meghnad Saha Inst. of Technol., Kolkata, India
  • fYear
    2012
  • fDate
    28-29 Dec. 2012
  • Firstpage
    556
  • Lastpage
    559
  • Abstract
    The S-Box and Inverse S-Box in the tradition advance encryption standard is fixed and it is made by the composite field arithmatic to find the multiplicative inverse in the finite field GF (28). But in traditional AES the use of irreducible polynomial m(x) = x8+ x4 + x3 + x+1 to find out multiplicative inverse, is known to the attacker. So if we can make use of different irreducible polynomial every time to the finite field of GF (28) and send this the receiver combined with the secret key, then every time a new irreducible polynomial is used and a random S-Box is generated. Hence, the security of the algorithm is enhanced. In this paper, we devise an algorithm, which make use of different irreducible polynomial to finite field of GF (28) to make random S-Box and Inverse S-Box.
  • Keywords
    cryptography; polynomials; AES; advance encryption standard; composite field arithmatic; finite field GF; inverse S-box; irreducible polynomial; multiplicative inverse; random S-box generation; secret key; Finite element methods; Galois fields; Polynomials; Receivers; Security; Standards; Finite field; Inverse S- Box Multiplicative Inverse; Irreducible Polynomial; S-Box; Substitute bytes;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Communications, Devices and Intelligent Systems (CODIS), 2012 International Conference on
  • Conference_Location
    Kolkata
  • Print_ISBN
    978-1-4673-4699-3
  • Type

    conf

  • DOI
    10.1109/CODIS.2012.6422263
  • Filename
    6422263