Unconditionally and computationally secure cip
State the difference between unconditionally secure cipher and computationally secure cipher?
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An unconditionally secure cipher refers to a scheme such that if the cipher text produced by the scheme does not have enough information in order to calculate uniquely the corresponding plain text, no matter how much cipher text is available.
A computationally secure scheme is such that cost of breaking the cipher exceeds the value of encrypted information and time needed to break cipher exceeds useful lifetime of information.
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Find out the Power Factor of the alternating current network demonstrated below, while operating at a frequency of 50Hz. Thus, establish a revised value for the inductor, L that will accurate the Power Factor of the network to unity. Q : Estimate velocity when permeability of A conducting coil having 100 turns and consisting of a wound coil diameter of 5cm is to be passed at constant speed throughout a magnetic field into free space to create an induced EMF of 350 millivolt. If the magnetic field strength is 500Am-1, estimate the velocity along with that th
A conducting coil having 100 turns and consisting of a wound coil diameter of 5cm is to be passed at constant speed throughout a magnetic field into free space to create an induced EMF of 350 millivolt. If the magnetic field strength is 500Am-1, estimate the velocity along with that th
Find out the reactance of the values of capacitor at the frequencies given below. Then find out the value of inductor in each case that will provide similar reactance as the capacitor as follows:. (a) 3.3 µF at 50Hz
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