Adrian Luca

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The paper supports a debate concerning the meaning and the importance of redundancy and ergodicity in cryptography. The discussion is mainly organized around a very thought-provoking enciphering method, running-key cipher. The paper comes with a new view of running-key method which permits to resume and extend it for ergodic sources in order to provide good(More)
Session title: epidemiology, subtypes, regional issues O1 HIV-1 diversity in Bulgaria (current molecular epidemiological picture) Objectives In Bulgaria 1606 cases with HIV/AIDS were diagnosed from 1986 until 2012. Epidemiological data indicated greater heterogeneity of HIV-1 positive population, including minority groups, migrants, and recent increase of(More)
In the present model-based study, the correlation dimension (D2) was used as a measure of the effectiveness of atrial septal pacing during atrial fibrillation (AF). From ongoing simulated atrial fibrillation, instantaneous transmembrane potential maps were used as initial conditions for a rapid pacing from the septum area at pacing cycle length (PCL)(More)
The paper presents a detailed analysis of two types of pseudorandom binary sequence generators obtained by using tent map. The test is performed using a NIST statistical test suite which is widely used for testing the randomness of any random number generator. The binary sequences under investigation are obtained either by considering all the successive(More)
  • Ing Adriana Vlad, Jean-Pierre Barbot, Referent Prof Krishna Busawon, Referent Prof Ma¨ı Nguyen-Verger, Referent Ing Prof, Radu Dogaru +27 others
  • 2013
Procedee de cifrare/descifrare folosind sisteme haotice. Analiz˘ a bazat˘ a pe metode statistice¸si teoria controlului sistemelor. Encryption/decryption methods using chaotic systems. Analysis based on statistical methods and control system theory.Acknowledgements First of all, I want to express my gratitude to my Thesis Directors, Professor Adriana Vlad(More)
The paper mainly focuses on the statistical dependence/independence relationship existing in the Rössler map and on the possibility to sample the chaotic system as to obtain experimental data complying with the i.i.d. model (data coming out from independent and identically distributed random variables). The investigation considered the following definition(More)