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slega [8]
4 years ago
10

2.1. The stream cipher described in Definition 2.1.1 can easily be generalized to work in alphabets other than the binary one. F

or manual encryption, an especially useful one is a stream cipher that operates on letters. 1. Develop a scheme which operates with the letters A, B,..., Z, represented by the numbers 0,1,...,25. What does the key (stream) look like? What are the encryption and decryption functions? 2. Decrypt the following cipher text: bsaspp kkuosp which was encrypted using the key: rsidpy dkawoa 3. How was the young man murdered?

Computers and Technology
1 answer:
nekit [7.7K]4 years ago
7 0

Answer:

See attached image

Explanation:

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"When analyzing the IDS logs, the system administrator notices connections from outside of the LAN have been sending packets whe
lakkis [162]

This is false negative. To be marked for alert.

<u>Explanation:</u>

The network administrator or network engineer when he or she is analyzing IDS logs and founded the ip address is same on source and destination both in outside side.

So the either TCPIP address has to change to be scanned across the network. Since same IP address is same pinging rate will high and pinging the same workstation or desktop or laptop.

Alert will not generate because both tcpip address same and if pinging is success.  Ids logs generates based true negative, true positive and false positive will not generate any alert.

5 0
4 years ago
What is the process of starting or restarting a computer or mobile device?
kenny6666 [7]
Hello there.

<span>What is the process of starting or restarting a computer or mobile device?

Answer: </span><span>booting</span>
3 0
4 years ago
In this exercise, you will write a class that represents how you spend your time during the week The class should have four doub
Nuetrik [128]

Answer:

Answered below

Explanation:

# Program is written in Java

class WeekHours{

double school;

double fun;

double sleep;

double sports;

WeekHours( ){

school = 0.0;

fun = 0.0;

sleep = 0.0;

sports = 0.0;

}

public void setSchool ( double x){

school = x;

}

public void setFun( double y){

fun = y;

}

public void setSleep( double w){

sleep = w;

}

public void setSports( double z){

sports = z;

}

public void totalHours(){

double tHours = school + fun + sleep + sports;

System.out.print(tHours);

}

}

4 0
3 years ago
Create an array to hold the rainfall values. Create a 2nd parallel array (as a constant) to hold the abbreviated names of the mo
Zarrin [17]

Answer:

#include <stdio.h>

int main()

{

//variable declaration

int low, high;

float lowRain, highRain, total, avg;

 

//array declaration

float rainfall[13];

char monthName[13][10] = {"", "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};

//get user input

for(int i=1; i<=12; i++)

{

printf("Enter the rainfall (in inches) for %s: ", monthName[i]);

scanf("%f", &rainfall[i]);

}

 

//display the monthly rainfall

printf("\nThe rainfall that was entered was:\n");

for(int i = 1; i<=6; i++)

printf("%s ", monthName[i]);

printf("\n");

for(int i = 1; i<=6; i++)

printf("%.1f ", rainfall[i]);

printf("\n");

for(int i = 7; i<=12; i++)

printf("%s ", monthName[i]);

printf("\n");

for(int i = 7; i<=12; i++)

printf("%.1f ", rainfall[i]);

 

//variable initialization

low = 1;

high = 1;

lowRain = rainfall[1];

highRain = rainfall[1];

total = 0;

 

//calculate the lowest, highest and averaage rainfall

for(int i=1; i<=12; i++)

{

if(lowRain>rainfall[i])

{

lowRain = rainfall[i];

low = i;

}

if(highRain<rainfall[i])

{

highRain = rainfall[i];

high = i;

}

total = total + rainfall[i];

}

 

avg = total / 12;

 

//display the result

printf("\n\nThe total rain that fell was %.1f inches", total);

printf("\nThe average monthly rainfall was %.1f inches.", avg);

printf("\nThe lowest monthly rainfall was %.1f inches in %s.", rainfall[low], monthName[low]);

printf("\nThe highest monthly rainfall was %.1f inches in %s.", rainfall[high], monthName[high]);

return 0;

}

4 0
4 years ago
What are some qualities needed by computer support specialists
deff fn [24]
A bachelor's degree is required for some computer support specialist positions, but an associate's degree or postsecondary classes may be enough for others.
5 0
3 years ago
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