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Statistical Mechanics of Steganographic Systems

Grant number: 12/12363-8
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): August 01, 2012
Effective date (End): September 30, 2015
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Renato Vicente
Grantee:Antonio Andre Monteiro Manoel
Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated scholarship(s):13/01213-8 - Statistical mechanics, inference and message-passing algorithms, BE.EP.DR


We propose to study, within a statistical mechanics point of view, aspects of problems in information security, in particular those of estimate of reputations and steganography. Using recently established connections between statistical mechanics and processes of inference and optimization, we are able to analyze algorithms used in the study of such problems, determining bounds in its performance. Associations may be established between the algorithms and models used in the study of physical systems; regions of parameters of good/bad performance are then related to different thermodynamical phases. Studying the model leads to a better understanding of the algorithm, enabling us to propose improvements.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MANOEL, ANDRE; VICENTE, RENATO. Statistical mechanics of reputation systems in autonomous networks. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, . (12/12363-8)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MANOEL, Antonio Andre Monteiro. Statistical physics for compressed sensing and information hiding. 2015. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Física (IF/SBI) São Paulo.

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