Fine Tuning the Advanced Encryption Standard (AES)
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Date
2012
Journal Title
Journal ISSN
Volume Title
Publisher
Association for Computing Machinery
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
The Advanced Encryption Standard has been playing a prominent role in embedded systems security for a decade after being announced by the National Institute of Standards and Technology (NIST). However, vulnerabilities have emerged, especially timing attacks, that challenges its security. This paper demonstrates the introduction of a unique diffusion and confusion scheme in Rijndael by incorporating ASCII codes manipulations using playfair ciphering into the algorithm; it is not depended on the key and input thereby making it a constant time module in AES algorithm. The concept counters possible leakages from the S-box lookups; intermediary operations (SubstituteByte, ShiftRows, MixColumns, AddRoundKey) of the AES are still applicable but it becomes impossible for cryptanalysis discovery of enciphering method and ciphertext bits. Success of cracking efforts will be beyond human patience as it avoids statistical precision, thereby curbing timing attacks.
Description
5th International Conference on Security of Information and Networks (SIN) -- OCT 25-27, 2012 -- Malaviya Natl Inst Technol, Dept Comp Engn, Jaipur, INDIA
WOS:000312505600044
WOS:000312505600044
Keywords
Rijndael, State, Plaintext, Ciphertext, S-box, ASCII, MixColumns, ShiftRows, SubBytes, AddRoundkey
Journal or Series
PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON SECURITY OF INFORMATION AND NETWORKS
WoS Q Value
N/A
Scopus Q Value
N/A
