Question: Suppose F / ( . is 3 pseudorandom function ( PRF ) , that outputs 2 n bits We define Hy ( x ) as

Suppose F/(. is 3 pseudorandom function (PRF), that outputs 2n bits We define Hy (x) as follows: take the first half,
n bits of F (a) and then filip each bit. Explain why Ih: (.) is still a PRE.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!

Q:

Let G be a pseudorandom generator that maps n-bit inputs to (n+ 1)-bit outputs, and define G0 (s1, . . . , sn) = G(s1, . . . , sn)||(s1 s2). Here s1, . . . , sn are the bits of the seed s, and ||...

Q:

Slide 6 Direct proof: Construct adversary A as follows: Mo = ( 0 ' , 0 ) and M , = ( 0 ' , 1 ) Challenge ciphertext C = ( G , ) Adversary A: if 4 = C , then b ' = 0 else b ' = 1 If b = 0 then b ' = 0...

Q:

Slide 6 Direct proof: Construct adversary A as follows: Mo = ( 0 ' , 0 ) and M , = ( 0 ' , 1 ) Challenge ciphertext C = ( G , ) Adversary A: if 4 = C , then b ' = 0 else b ' = 1 If b = 0 then b ' = 0...

Q:

can someone solve this Modern workstations typically have memory systems that incorporate two or three levels of caching. Explain why they are designed like this. [4 marks] In order to investigate...

Q:

answer all questions promptly What is the maximum segment length of a 100Base-FX netdwork,Thelast character('X', etc) refers to the line code method used. Line code is a pattern of voltage, current...

Q:

Microkernel operating systems aim to address perceived modularity and reliability issues in traditional "monolithic" operating systems. (i) Describe the typical architecture of a microkernel...

Q:

This question involves the use of AGGREGATE linear PYTHOIN regression on the Auto data set. (a) Perform a simple linear regression with mpg as the response and horsepower as the predictor. Describe...

Q:

Portray in words what transforms you would have to make to your execution to some degree (a) to accomplish this and remark on the benefits and detriments of this thought.You are approached to compose...

Q:

) Consider integer division of one two's-complement binary number by another. Programming languages may vary in the result when one argument is negative. What differing conventions might they be...

Q:

Provide an appropriate query to show that the above program can give an incorrect result. [4 marks] (b) Explain the cause of the error. [6 marks] (c) Suggest a correction. [5 marks] (d) Write a...

Q:

Oleg has a loan for $11500 for 3 years at 4.25% comounded 365 times per year. He makes level monthly payments at the end of each month. a) What is the effective monthly interest rate? b) What are his...

Q:

You are pricing permanent disability insurance using the following model with transition forces: Healthy (0) Dead (2) ,12 You are given: (i) 8 = 0.05, 4t= 0.06, p=0.01, ,01 (ii) A benefit of 1,000 is...

Q:

What type of intercompany and inter - segment sales does Ford Motor Company have? Are they significant? How are they treated for consolidation?

Q:

You own a pizza shop called "Pizza's'Us". Currently, you are paying your cooks an hourly wage of $20. You sell a medium pizza for $10 a pie. By hiring more cooks, you can increase your pizza...