A low overhead DPA countermeasure of ECC based on randomized modular multiplication

Author

Dongmei Xue ; Xiaole Cui ; Chung-Len Lee ; Lifei Liu ; Shijie Zhang

Author_Institution

Key Lab. of Integrated Microsyst., Peking Univ. Shenzhen, Shenzhen, China

fYear

2014

fDate

28-31 Oct. 2014

Firstpage

1

Lastpage

3

Abstract

Elliptic Curve Cryptography is a popular algorithm since it can achieve good security level with a small key size. However, the ECC hardware is suffering from some side channel attacks, such as Differential power-analysis (DPA), which can retrieve secret keys by analyzing power consumption of the attacked devices. In this paper, a countermeasure to secure the modular multiplication, an important operation of Elliptic Curve Cryptography, with randomization method is studied. The experiment results show that unprotected device reveal the secret key within 1000 power traces, while the protected one can defend DPA attack with 10⁵ power traces, with only 8% additional area cost.

Keywords

private key cryptography; public key cryptography; DPA attack; ECC hardware; Low Overhead DPA Countermeasure; differential power-analysis; elliptic curve cryptography; key size; power traces; randomization method; randomized modular multiplication; secret key; security level; side channel attacks; unprotected device; Abstracts; Cryptography; Hardware; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on

Conference_Location

Guilin

Print_ISBN

978-1-4799-3296-2

Type

conf

DOI

10.1109/ICSICT.2014.7021566

Filename

7021566