Application of multithreading for protection programs
https://doi.org/10.55648/1998-6920-2023-17-3-3-11
Abstract
A method for identifying a program copy by means of digital watermark is presented in this article. Previously known analogues for constructing a watermark used modification of program's control flow graph, and reading was made via complex analysis of the program's trace. It is known that applying a protector or packer can neutralize such a watermark. In this paper, it is proposed to use a multi-threaded application that generates numbers with a normal distribution law. The embedding of the digital watermark is carried out by changing the dispersion of distributions. Such random variable can be found via a signature in the process memory and is used both within the program itself and by a third-party when reading the watermark. An experimental selection of the optimal parameters of the algorithm has been carried out. Overhead expenses associated with the creation of a large number of threads are estimated.
About the Author
I. V. Nechta
http://nechta.ru
Siberian State University of Telecommunications and Information Science (SibSUTIS)
Russian Federation
Siberian State University of Telecommunications and Information Science (SibSUTIS)
Russian Federation
Ivan V. Nechta - Dr. of Sci. (Engineering), Associate Professor; Chief of the Department of Applied Mathematics and Cybernetics.
630102, Novosibirsk, Kirov St. 86, phone: +7 383 269 82 72
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For citations:
Nechta I.V. Application of multithreading for protection programs. The Herald of the Siberian State University of Telecommunications and Information Science. 2023;17(3):3-11. (In Russ.) https://doi.org/10.55648/1998-6920-2023-17-3-3-11
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