Visible to the public Biblio

Filters: Author is Korzhik, Valery  [Clear All Filters]
2020-03-04
Korzhik, Valery, Starostin, Vladimir, Morales-Luna, Guillermo, Kabardov, Muaed, Gerasimovich, Aleksandr, Yakovlev, Victor, Zhuvikin, Aleksey.  2019.  Information Theoretical Secure Key Sharing Protocol for Noiseless Public Constant Parameter Channels without Cryptographic Assumptions. 2019 Federated Conference on Computer Science and Information Systems (FedCSIS). :327–332.

We propose a new key sharing protocol executed through any constant parameter noiseless public channel (as Internet itself) without any cryptographic assumptions and protocol restrictions on SNR in the eavesdropper channels. This protocol is based on extraction by legitimate users of eigenvalues from randomly generated matrices. A similar protocol was proposed recently by G. Qin and Z. Ding. But we prove that, in fact, this protocol is insecure and we modify it to be both reliable and secure using artificial noise and privacy amplification procedure. Results of simulation prove these statements.

2020-02-10
Korzhik, Valery, Duy Cuong, Nguyen, Morales-Luna, Guillermo.  2019.  Cipher Modification Against Steganalysis Based on NIST Tests. 2019 24th Conference of Open Innovations Association (FRUCT). :179–186.

Part of our team proposed a new steganalytic method based on NIST tests at MMM-ACNS 2017 [1], and it was encouraged to investigate some cipher modifications to prevent such types of steganalysis. In the current paper, we propose one cipher modification based on decompression by arithmetic source compression coding. The experiment shows that the current proposed method allows to protect stegosystems against steganalysis based on NIST tests, while security of the encrypted embedded messages is kept. Protection of contemporary image steganography based on edge detection and modified LSB against NIST tests steganalysis is also presented.