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Block ciphers' security mostly depends on S-box which is the only non-linear structure in most block ciphers. This paper studies and compares the avalanche property of the AES S-box and Camellia S-box, finally confirms that the AES S-box and Camellia S-box both satisfy the strict avalanche criterion basically.
A self-consistent rate equation model is presented to investigate the influence of carrier relaxation on the modulation response of 1.3 mum InAs-GaAs quantum dot lasers. In this model, the carrier dynamics in GaAs barrier, relaxation pathways, and the phonon- and Auger-assisted relaxation are considered. The dependence of 3 dB bandwidth on the relaxation time and relaxation pathway is discussed. It...
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