Chip electromagnetic side channel analysis method and system and storage medium

• Main Authors: ZHAO YIQIANG, HE JIAJI, LI YAO, YAN MINGKAI
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; PHYSICS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a chip electromagnetic side channel analysis method and system, and the method comprises the steps: collecting an electromagnetic signal of a side channel of target equipment, and extracting interest feature points related to a side channel analysis target from the electromagnetic signal to construct a data set; constructing a self-encoding network structure by taking the data set as the input of a self-encoding network and the electromagnetic signal as the output label of the self-encoding network based on a stack type self-encoding neural network technology; when the password intermediate value data is unknown, pre-training the self-encoding network structure by adopting a clustering algorithm to obtain a hypothesis model; and performing optimization training on the hypothesis model by using plaintext data to obtain a network model for side channel security assessment. The evaluation of the side channel security protection performance of the chip which is difficult to obtain the pass