Markus Dichtl

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It is shown that the amount of true randomness produced by the recently introduced Galois and Fibonacci ring oscillators can be evaluated experimentally by restarting the oscillators from the same initial conditions and by examining the time evolution of the standard deviation of the oscillating signals. The restart approach is also applied to classical(More)
1. The quaternary derivative of the potent verapamil-analogue, (-)-D888, (qD888, 4-cyano-4-(3,4-dimethoxyphenyl)-N-[2-(3-methoxy phenyl)ethyl]-N,N,5-trimethyl-1-hexanaminium) was synthesized as a novel membrane-impermeable probe to study the localization of phenylalkylamine (PAA) effector domains on L-type Ca2+ channels. Channel block by qD888 was(More)
In their paper " A Provably Secure True Random Number Generator with Built-in Tolerance to Active Attacks " , B. Sunar, W. Mar-tin, and D. Stinson propose a design for a true random number generator. Using SPICE simulation we study the behaviour of their random number generator and show that practical implementations result in a too high frequency signal to(More)
  • B Preneel, B Van Rompay, L Granboulan, G Martinet, S Murphy, R Shipsey +11 others
  • 2001
† The work described in this report has been supported by the Commission of the European Communities through the IST program under contract IST-1999-12324. The information in this document is provided as is, and no warranty is given or implied that the information is fit for any particular purpose. The user thereof uses the information at its sole risk and(More)