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Darina [25.2K]
4 years ago
6

Suppose Alice has a and Bob has b. Alice and Bob also share a secure communication channel. Chris wants to compute S = a ⊕ b. Al

ice does not want Chris or Bob to learn a and Bob does not want Chris or Alice to learn b. How can this be done?
Computers and Technology
1 answer:
finlep [7]4 years ago
6 0

Answer:

This can be done by sharing some number b/w Alice and Bob.

Let a number c is shared b/w Alice and Bob.

c should not be shared with Chris.

Now, Alice can share (a xor c) with Chris but not to Bob.

Similarly, Bob can share (b xor c) with Chris but not to Alice.

So, Now Chris know (a xor c) and (b xor c).

Chris can calculate (a xor b) = (a xor c) xor ( b xor c).....

So Chris can calculate (a xor b) with satisfying all constraints.

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domain controllers store local user accounts within a sam database and domain user accounts within active directory. true or fal
Natalka [10]

Answer:

True

Explanation:

The domain controller is a server that responds within windows server domains to request for security authentication. It enforces security for windows and they are useful for storing the account information of users, that is local users within a Security Account Manager. Therefore the answer to this question is true.

Thank you!

5 0
3 years ago
What are the three major functions of a game engine?
Harrizon [31]
read that hope this helped

8 0
3 years ago
Two systems are connected by a router. Both systems and the router have transmission rates of 1,000bps. Each link has a propagat
Lisa [10]

Answer:

Two systems are connected by a router. Both systems and the router have transmission rates of 1,000bps. Each link has a propagation delay of 10ms. Also, it takes router 2ms in order to process the packet (e.g. decide where to forward it). Suppose the first system wants to send a 10,000 bit packet to the second system. How long will it take before receiver system receives the entire packet.

Transmission time for first Router = 10,000 bits / 1000 bps = 10 seconds

Receiving time for seond route r= 10,000 bits / 1000 bps = 10 seconds

Propagation delay = 10ms = .01 seconds x 2 for two delays = .02 seconds

First router 2ms to process = .002 seconds

Add all the times together and we get 20.022 seconds which is the same as or 20 seconds and 22 ms

4 0
3 years ago
Driving is expensive. Write a program with two inputs, a car's miles/gallon and the cost of gas/gallon both represented as doubl
Nataly_w [17]

Answer:33

Explanation:

6 0
3 years ago
Write a class declaration named Circle with a private member variable named radius. Write set and get functions to access the ra
Kazeer [188]

Answer:

See explaination

Explanation:

#include <iostream>

using namespace std;

class Circle{

// private member variable named radius

private:

double radius;

// get function for radius

public:

double getRadius(){

return radius;

}

// set function for radius

void setRadius(double rad){

radius=rad;

}

// returning area = 3.14159 * radius * radius

double getArea(){

return (3.14159 * radius * radius);

}

};

// Sample run

int main()

{

// Declaring object of Circle

Circle myCircle;

myCircle.setRadius(5);

// printing radius of circle

cout<<"Radius of circle is: "<<(myCircle.getRadius())<<endl;

// printing area of circle

cout<<"Area of circle is: "<<(myCircle.getArea())<<endl;

return 0;

}

4 0
3 years ago
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