Abstract: Power glitch attacks arc fast changes in the power supplied to the device and designed to affect its normal operation. I3y this way,the cpu can be made to execute a number of completely different wrong instructions. This paper summarized the latest development of power glitch attack and defense techniques. Aimed at various implementations of attack on RSA signature With Chinese Reminder I}hcorem, attack on RSA signature without CRh and attack on EEPROM were described. Then the available countermeasures of power glitch were shown, which consist of MASK methods, detecting voltage glitch attacks. Moreover, the relative merits of these countermeasures were analyzed.

Key words: Power glitch attack, Smart card, Device security, Attack on RSA, Attack on ecprom