Radiosensor identification and authentication of radio-electronic devices

Abstract

The presented work is devoted to the study of a new physically unclonable function (PUF) associated with the intrinsic electromagnetic radiation of a radio electronic device. This PUF arises as a result of the technological spread of the parameters of electronic components. The relevance of this study is explained by the fact that modern methods of protecting radio-electronic products from illegal cloning have a number of serious drawbacks associated with increased power consumption, the use of processor time, and the need for galvanic access to the object of study. Partially, these problems are eliminated by PUF, which allow authentication of a radio-electronic device. However, this kind of protection also has serious vulnerabilities in the case of illegal overproduction of products in excess of the ordered quantity. In addition, the PUF does not allow for the identification of radio-electronic products. The purpose of this work is to increase the protection of radio electronic devices from illegal cloning, by studying a new PUF. The work uses experimental research methods to record the electrical component of the electromagnetic field emitted by the product - the signal radio profile (SRP). Correlation analysis methods for product authentication, Pearson's statistical agreement method for identification. SRPs registered from specially designed experimental samples are presented, a correlation analysis of SRP data is carried out. To decompose and extract the parameters of the SRP, its time-frequency spectrum was constructed. A correspondence table was compiled and an analysis of Pearson's agreement was carried out. The results obtained showed the possibility of using the SRP as a new physically unclonable function that allows the identification of radio electronic devices with a probability specified by the researcher, which determines the novelty of the work. It has been established that with Pearson's coefficient of agreement between the parameters of the studied SRP and the benchmark of more than 0.95, a radio-electronic device can be reliably identified. The practical significance of the work lies in the possibility of using the SRP to identify a group of devices and radio-technical protection of a radio-electronic product from fakes and illegal copies.