스캔 기반 사이드 채널 공격에 대한 효과적인 AES 코어 키 보호 기술

Abstract

This paper presents an efficient secure scan design technique which is based on a fake key to protect secret key from scan-based side channel attack for an Advanced Encryption Standard (AES) core embedded on an System-on-a-Chip (SoC). Our proposed secure scan design technique can be applied to crypto IP core which is optimized for applications without the IP core modification. The IEEE1149.1 standard is kept, and low area and power consumption overheads, very robust secret-key protection and high fault coverage can be achieved compared to the existing methods