Cryptography, Basic Computer Science

Assignment Help:
Assume |s1|=|s2|=n and consider the functions defined, for any s1 and s2, as:
(a) G1(s1,s2)=s1 xor s2, (b) G2(s1,s2)=(s1, s2, s1 xor s2).
We have that:

A.
G1 and G2 are pseudo-random generators because their outputs are uniformly (and thus, pseudo-randomly) distributed if so are their input

B.
G1 and G2 are not pseudo-random generators because either their outputs are not longer than their inputs or there exists a statistical test that distinguishes their outputs from a random string of the same length

C.
G1 and G2 are not pseudo-random generators because either there exists an efficient algorithm that can compute their input from their output or their outputs are not longer than their inputs

D.
G1 and G2 can be proved to be pseudo-random generators using a proof by reduction

Related Discussions:- Cryptography

Fms control-display unit, FMS CONTROL-DISPLAY UNIT: The CDU provides a ...

FMS CONTROL-DISPLAY UNIT: The CDU provides a means for the crew to communicate with the FMC.  It contains pushbutton key controllers and a display screen.  The keys are of two

The microprocessor, THE MICROPROCESSOR The three fundamental units, whi...

THE MICROPROCESSOR The three fundamental units, which comprise a CPU, have now been discussed in general terms.  So too has a microprocessor, because a microprocessor can be de

General considerations for search - artificial intelligence, General Consid...

General Considerations for Search If we may specify the starting state, the operators and the goal check for a search problem, then we know from where to start, how to move and

OPERATING SYSTEM, WHAT IS MULTIPLE CONTIGUOUS VARIABLE PARTITIONING

WHAT IS MULTIPLE CONTIGUOUS VARIABLE PARTITIONING

DR Racket program, Hi, I''m looking for someone to help me with Computer Sc...

Hi, I''m looking for someone to help me with Computer Science ASAP. How soon are you available? Thanks! Specifically using the Racket program dealing with creating a list that will

DBMS, what is the meaning of data definition

what is the meaning of data definition

Problem - programming language, Problem - programming language: A Prob...

Problem - programming language: A Problem is to carry out a particular task. For solving the problem, some input has to be given to the system. The system will process or mani

Backup software, Backup software: A number of Backup software are avai...

Backup software: A number of Backup software are available that assist you in taking backup of your important data on the computer. Selecting between various back-up software

Cathode ray tube monitors, Cathode Ray Tube Monitors (CRT): Monitors d...

Cathode Ray Tube Monitors (CRT): Monitors display what is going on in your computer. They can run at various resolutions. It is the part of computer which looks like a TV set.

What is .net framework, Qestion 1 What is .Net Framework? Qestion 2 W...

Qestion 1 What is .Net Framework? Qestion 2 Write short notes on constructors and destructors Qestion 3 Explain boxing and unboxing with examples Qestion 4 What is

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd