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9 papers · 1 filter
Security Problems with Improper Implementations of Improved FEA-M
Shujun Li, Kwok-Tung Lo
This paper reports security problems with improper implementations of an improved version of FEA-M (fast encryption algorithm for multimedia). It is found that an implementation-de…
Cryptanalysis of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables
Shujun Li, Guanrong Chen, Albert Cheung +1
This paper studies the security of a recently-proposed MPEG-video encryption scheme based on secret Huffman tables. Our cryptanalysis shows that: 1) the key space of the encryption…
Security analysis of communication system based on the synchronization of different order chaotic systems
G. Alvarez, L. Hernandez, J. Munoz +2
This work analyzes the security weakness of a recently proposed communication method based on chaotic modulation and masking using synchronization of two chaotic systems with diffe…
Effects of Al Addition on the Native Defects in Hafnia
Quan Li, K. M. Koo, W. M. Lau +4
Two occupied native defect bands are detected in pure HfO2, with one located in the middle of the band gap and the other slightly above the valence band maximum. The investigation…
Optimal phase space projection for noise reduction
Xiaodong Luo, Jie Zhang, Michael Small
In this communication we will re-examine the widely studied technique of phase space projection. By imposing a time domain constraint (TDC) on the residual noise, we deduce a more…
Exact scalings in competitive growth models
L. A. Braunstein, Chi-Hang Lam
A competitive growth model (CGM) describes aggregation of a single type of particle under two distinct growth rules with occurrence probabilities and . We explain the orig…