Differential Power Analysis Attacks for Data Encryption Standard Cryptographic Systems
Gaoming Deng · Acta Armamentarii · 2008
In order to open out the information leakage caused by the power consumption of running cryptographic system,the data power consumption correlation of static CMOS gates was analyzed.The differential power analysis(DPA) attacks against the data encryption standard(DES) crystographic system realized with AT89C52 microcomputer were designed and implemented.A power consumption model of static CMOS gates in registers was offered.It explained how the selection function D divided the power consumption curves into two sets with different power consumption characters and makes the way to deduce the power consumption characters from the data and vice versa more clear.48-bit key of the round 16 of DES was detected in DPA attacks.The result shows that DES cryptographic systems without special protective measures are not strong enough to resist DPA attacks because of the data-power correlation of static CMOS gates.