Accession Number : ADA609416


Title :   Extending Differential Fault Analysis to Dynamic S-Box Advanced Encryption Standard Implementations


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT


Personal Author(s) : Flamm, Bradley M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a609416.pdf


Report Date : 18 Sep 2014


Pagination or Media Count : 107


Abstract : Advanced Encryption Standard (AES) is a worldwide cryptographic standard for symmetric key cryptography. Many attacks try to exploit inherent weaknesses in the algorithm or use side channels to reduce entropy. At the same time, researchers strive to enhance AES and mitigate these growing threats. This paper researches the extension of existing Differential Fault Analysis (DFA) attacks, a family of side channel attacks, on standard AES to Dynamic S-box AES research implementations. Theoretical analysis reveals an expected average keyspace reduction of 2-88:9323 after one faulty ciphertext using DFA on the State of Rotational S-box AES-128 implementations. Experimental results revealed an average 2-88:8307 keyspace reduction and confirmed full key recovery is possible.


Descriptors :   *CRYPTOGRAPHY , FAULT TREE ANALYSIS , THESES


Subject Categories : Cybernetics


Distribution Statement : APPROVED FOR PUBLIC RELEASE