Title :
DPA insensitive voltage regulator for contact smart cards
Author :
Hernandez, Hugo ; Scott, Jonathan ; Van Noije, Wilhelmus
Author_Institution :
Polytech. Sch., Univ. of Sao Paulo, Sao Paulo, Brazil
fDate :
Aug. 30 2012-Sept. 2 2012
Abstract :
An on-chip voltage regulator for contact smart cards in CMOS technology is presented. The proposed regulator protects the supplied system against power analysis attacks using a charge pump architecture to eliminate the power consumption correlation. It generates a 1.55V output from 1.65V to 5.5V input voltage. The circuit has been sized to handle a 50mA load current step with less than 250mV of voltage ripple without external capacitors. Thus, it can be applied in A, B and C classes of smart cards. The presented circuit was designed in a 0.18μm CMOS technology. The core occupies an area of about 0.15mm2, without Pads.
Keywords :
CMOS integrated circuits; charge pump circuits; integrated circuit design; microprocessor chips; power consumption; security of data; smart cards; voltage regulators; CMOS technology; DPA insensitive voltage regulator; charge pump architecture; circuit design; contact smart card; current 50 mA; differential power analysis; on-chip voltage regulator; power analysis attack; power consumption correlation; size 0.18 mum; voltage 1.55 V; voltage 1.65 V to 5.5 V; Capacitors; Charge pumps; Clocks; Power demand; Regulators; Smart cards; Voltage control;
Conference_Titel :
Integrated Circuits and Systems Design (SBCCI), 2012 25th Symposium on
Conference_Location :
Brasilia
Print_ISBN :
978-1-4673-2606-3
DOI :
10.1109/SBCCI.2012.6344432
