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2009 3rd International Conference on Signals, Circuits and Systems (SCS), 2009
This paper presents hardware implementations of a DES cryptoprocessor with masking countermeasure... more This paper presents hardware implementations of a DES cryptoprocessor with masking countermeasures and their evaluation against side-channel attacks (SCAs) in FPGAs. The masking protection has been mainly studied from a theoretical viewpoint without any thorough test in a noisy real world designs. In this study the masking countermeasure is tested with firstorder and higher-order SCAs on a fully-fledged DES. Beside a classical implementation of the DES substitution boxes (S-Boxes) a simple structure called Universal Substitution boxes with Masking (USM) is proposed. It meets the constraint of low complexity as state-of-the-art masked S-Boxes are mostly built from large look-up tables or complex calculations with combinatorial logic gates. However attacks on USM has underlined some security weaknesses. ROM masked implementation exhibits greater robustness as it cannot be attacked with first-order DPA. Nevertheless any masking implementation remains sensitive to Higher-Order Differential Power Analysis (HO-DPA) as shown in a proposed attack. This attack is based on a variance analysis of the observed power consumption and it clearly shows the vulnerabilities of masking countermeasures.
Studies in Art Education, 2004
In this article, the author argues thac visual culture is an essential direction for contemporary... more In this article, the author argues thac visual culture is an essential direction for contemporary art educators wiho are committed to examining social justice issues and fostering democratic principles through their teaching. The study explores how visual culture education can empower students to perceive and meaningfully engage in the ideological and cultural struggles embedded within the everyday visual experience. The author examines the work of resistance theorists.and socially engaged artists, including culture jammers, in ao effort to support and inform the teaching and learning of visual culture. The study concludes with an investigation of cultural production as a pedagogical strategy within the visual culture classroom for generating and facilitating student awareness, understanding, and active participation in the sociocultural realm.
2009 3rd International Conference on Signals, Circuits and Systems (SCS), 2009
This paper presents hardware implementations of a DES cryptoprocessor with masking countermeasure... more This paper presents hardware implementations of a DES cryptoprocessor with masking countermeasures and their evaluation against side-channel attacks (SCAs) in FPGAs. The masking protection has been mainly studied from a theoretical viewpoint without any thorough test in a noisy real world designs. In this study the masking countermeasure is tested with firstorder and higher-order SCAs on a fully-fledged DES. Beside a classical implementation of the DES substitution boxes (S-Boxes) a simple structure called Universal Substitution boxes with Masking (USM) is proposed. It meets the constraint of low complexity as state-of-the-art masked S-Boxes are mostly built from large look-up tables or complex calculations with combinatorial logic gates. However attacks on USM has underlined some security weaknesses. ROM masked implementation exhibits greater robustness as it cannot be attacked with first-order DPA. Nevertheless any masking implementation remains sensitive to Higher-Order Differential Power Analysis (HO-DPA) as shown in a proposed attack. This attack is based on a variance analysis of the observed power consumption and it clearly shows the vulnerabilities of masking countermeasures.
Studies in Art Education, 2004
In this article, the author argues thac visual culture is an essential direction for contemporary... more In this article, the author argues thac visual culture is an essential direction for contemporary art educators wiho are committed to examining social justice issues and fostering democratic principles through their teaching. The study explores how visual culture education can empower students to perceive and meaningfully engage in the ideological and cultural struggles embedded within the everyday visual experience. The author examines the work of resistance theorists.and socially engaged artists, including culture jammers, in ao effort to support and inform the teaching and learning of visual culture. The study concludes with an investigation of cultural production as a pedagogical strategy within the visual culture classroom for generating and facilitating student awareness, understanding, and active participation in the sociocultural realm.