公开(公告)号：US20220124487A1

公开(公告)日：2022-04-21

申请号：US17099796

申请日：2020-11-17

Applicant: INSTITUTE FOR INFORMATION INDUSTRY

Inventor： Ting-Yu LIN ,  Ping-Chun CHEN ,  Chia-Min LAI

IPC: H04W12/00 ,  H04B1/16 ,  H04W12/10 ,  G06N3/08

Abstract: An RF fingerprint signal processing device configured for executing a machine learning algorithm on a plurality of input signals. The RF fingerprint signal processing device includes a receiver-feature determination circuit and a classifying determination circuit. The receiver-feature determination circuit is configured to compute on the plurality of input signals in a neural network. The classifying determination circuit is coupled with the receiver-feature determination circuit, and the classifying determination circuit is configured to send feedback information of a receiver-feature component to the receiver-feature determination circuit. The receiver-feature determination circuit decreases the receiver-feature weight of the neural network. The receiver-feature weight is associated with the receiver-feature component, and the receiver-feature weight which is decreased is applied for computing an output value of the neural network.

公开(公告)号：US20250119271A1

公开(公告)日：2025-04-10

申请号：US18507087

申请日：2023-11-12

Applicant: INSTITUTE FOR INFORMATION INDUSTRY

Inventor： Ting-Yu LIN

IPC: H04L9/00

Abstract: Encrypted signal segment locating device and method. The device is configured to execute the following operations. An encrypted signal template is transformed into a signal template formed by template data points. The signal template is adjusted based on a frequency difference and a clock rate difference between a side-channel input signal and the signal template to generate an adjusted template. The adjusted template and the side-channel input signal are compared by using a sliding window to generate compared segments in the side-channel input signal and similarities corresponding to the compared segments. When the similarities are higher than a threshold, one of the compared segments is selected as an encrypted signal segment, and an encryption position is located by using the sliding window, wherein the encrypted signal segment is the compared segment having a highest similarity.

公开(公告)号：US20240113856A1

公开(公告)日：2024-04-04

申请号：US17977320

申请日：2022-10-31

Applicant: INSTITUTE FOR INFORMATION INDUSTRY

Inventor： Jian-Wei LIAO ,  Cheng-En LEE ,  Ting-Yu LIN

IPC: H04L9/00

CPC classification number: H04L9/002

Abstract: The present invention provides an encryption determining method. The method includes the following steps: receiving a side channel signal; generating a filtered side channel signal by filtering noise within the side channel signal; generating a phasor signal by utilizing a filter to covert the filtered side channel signal; locating the encrypted segment by calculating a periodicity of the phasor signal utilizing a standard deviation window; extracting at least one encrypted characteristic from the encrypted segment; and generating an encryption analytic result by recognizing the at least one encrypted characteristic according to a characteristic recognition model; wherein the encryption analytic result includes a position of the encrypted segment within the side channel signal, and an encryption type corresponding to the side channel signal. The present invention is able to automatically and efficiently locate the encryption segment and analyze the encryption type corresponding to the side channel signal.