Ekaterina Zhdanova
Research Subjects
Ekaterina Zhdanova has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Alexander Gutor
Terra Quantum AG, Kornhausstrasse 25, CH-9000 St. Gallen, Switzerland
1 shared publication - Alexander Smirnov
Terra Quantum AG, Kornhausstrasse 25, CH-9000 St. Gallen, Switzerland
1 shared publication - Michael Yarovikov
Terra Quantum AG, Kornhausstrasse 25, CH-9000 St. Gallen, Switzerland
1 shared publication - Mikhail Vyatkin
Terra Quantum AG, Kornhausstrasse 25, CH-9000 St. Gallen, Switzerland
1 shared publication
Latest Publications
- Open Access
An Optical-Fiber-Based Key for Remote Authentication of Users and Optical Fiber Lines
We have shown the opportunity to use the unique inhomogeneities of the internal structure of an optical fiber waveguide for remote authentication of users or an optic fiber line. Optical time domain reflectometry (OTDR) is demonstrated to be applicable to observing unclonable backscattered signal patterns at distances of tens of kilometers. The physical nature of the detected patterns was explained, and their characteristic spatial periods were investigated. The patterns are due to the refractive index fluctuations of a standard telecommunication fiber. We have experimentally verified that the patterns are an example of a physically unclonable function (PUF). The uniqueness and reproducibility of the patterns have been demonstrated and an outline of authentication protocol has been proposed.
Open AccessAn Optical-Fiber-Based Key for Remote Authentication of Users and Optical Fiber Lines
We have shown the opportunity to use the unique inhomogeneities of the internal structure of an optical fiber waveguide for remote authentication of users or an optic fiber line. Optical time domain reflectometry (OTDR) is demonstrated to be applicable to observing unclonable backscattered signal patterns at distances of tens of kilometers. The physical nature of the detected patterns was explained, and their characteristic spatial periods were investigated. The patterns are due to the refractive index fluctuations of a standard telecommunication fiber. We have experimentally verified that the patterns are an example of a physically unclonable function (PUF). The uniqueness and reproducibility of the patterns have been demonstrated and an outline of authentication protocol has been proposed.