Author(s)

Yong Xiao, Xin Jin and Yanhua Shen

Corresponding Author

Yong Xiao

ABSTRACT

Smart phones have become an important tool in our daily lives. They also carry a lot of sensitive information, such as keys for mobile payment and credentials for e-mails. In this paper, we describe some experimental results about side-channel analysis of a smart phone running RSA cryptographic algorithm. Our target is a smartphone with the main CPU running at 1.2GHz. We took measurement from a distance of 10cm, and we could successfully identify the sequence of modular multiplications and squaring’s in the RSA algorithm. Our study shows that long range side-channel analysis could be a real-world threat.

KEYWORDS

RF, Side Channel Analysis, GNU radio, RSA