Side Channel Attacks: Vulnerability Analysis of PRINCE and RECTANGLE using DPA.
Ravikumar Selvam, Dillibabu Shanmugam, Suganya Annadurai · 2014
Abstract. Over a decade, cryptographers are more attentive on design-ing lightweight ciphers in focus to compact cryptographic devices. More often, the security of these algorithms are defined in terms of its resis-tance to mathematical cryptanalysis methods. Nevertheless, designers are well aware of implementation attacks and concentrating on new de-sign strategies to improve the defence quality against implementation attack. PRINCE [3] and RECTANGLE [17] lightweight block ciphers are de-signed using new design strategies for efficiency and security. In this paper we analyse the security of PRINCE and RECTANGLE against a type of implementation attack called Differential Power Analysis (DPA) at-tack. Our attack reduces key search space from 2128 to 33008 for PRINCE and 280 to 288 for RECTANGLE.