Woo Kwon Koo

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Sensor devices have critical resource constraints such as processing speed, memory size and energy supply. Especially, energy consumption affects the network lifetime so that energy efficiency is an important requirement for wireless sensor networks (WSNs). It means that it is a considerable matter to choose the energy- and memory-efficient cryptographic(More)
Jacobian elliptic travelling wave solutions for a new Hamiltonian amplitude equation determining some instabilities of modulated wave train are obtained. By mere variation of the Jacobian elliptic parameter k2 from zero to one, these solutions are transformed from a trivial one to the known solitary wave solutions [1], [2]. ∗Permanent Address 1
Trace and revoke is broadcast encryption with the traitor tracing functionality. It is a very powerful primitive since it can revoke users whose private keys are compromised by finding them using a tracing algorithm if a pirate decoder is given. Public-key trace and revoke (PKTR) is a special type of trace and revoke such that anyone can run the tracing(More)
Trace and revoke is broadcast encryption with the traitor tracing functionality. It is a very powerful primitive since it can revoke users whose private keys are compromised by finding them using a tracing algorithm if a pirate decoder is given. Public-key trace and revoke (PKTR) is a special type of trace and revoke such that anyone can run the tracing(More)
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