An Improved Timing Attack with Error Detection on RSA-CRT

Several types of timing attacks have been published, but they are either in theory or hard to be taken into practice. In order to improve the feasibility of attack, this paper proposes an advance timing attack scheme on RSA-CRT with T-test statistical tool. Similar timing attacks have been presented, such as BB-Attack and Shindler’s attack, however none of them applied statistical tool in their methods with such efficiency, and showed the complete recovery in practice by attacking on RSA-CRT. With T-test, we enlarge the 0-1 gap, reduce the neighborhood size and improve the precision of decision. However, the most contribution of this paper is that our algorithm has an error detection property which can detect the erroneous decision of guessing qk and correct it. We could make the success rate of recovering q to be 100% indeed for interprocess timing attack, recovery 1024bits RSA key completely in practice

Estudio exploratorio de la técnicaTimming Attack en el criptosistema RSA

This paper makes an exploratory bibliographic analysis of the Timing Attack (TA) technique on the Side Channel Attacks (SCA) in RSA. The information assets, operation modes and countermeasures of 22 papers were analyzed. Findings show that smartcards are the most attacked information assets (32%), blinding is the most applied countermeasure (33%) and the Chinese Remainder Theorem (CRT) or Montgomery Multiplication (MM) with CRT are the most frequent operation modes (41%). Furthermore, just one attack was executed in telecom unication systems, this opens the possibilty for future work, analyzing the same technique using the tecnologies WiMAX and the SIP VoIP protocol.  El presente trabajo realiza un análisis bibliográfico exploratorio del tipo de ataque Timing Attack (TA) de On The Side Channel Attack (SCA) en RSA. Para lo cual, se analizaron los activos de información, los modos de operación y las contramedidas efectuadas de 22 artículos. Los resultados evidencian que el activo de información que más ataques tuvo son las tarjetas inteligentes (32%), la contramedida mayormente aplicada es el cegamiento (33%) y los modos de operación más utilizados son el Chinese Remainder Theorem (CRT) o Montgomery Multiplication (MM) con CRT (41%). Adicionalmente se evidencia que sólo un ataque fue realizado a los sistemas de telecomunicaciones, lo cual permite plantear trabajos futuros en el análisis de la misma técnica con base en las tecnologías WiMAX y el protocolo SIP de VoIP. &nbsp