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3 years ago

How many different Roblox games were played in 2018

Computers and Technology

2 answers:

kenny6666 [7]3 years ago

7 0

Answer:

Well around 1 thousand popular games had changed a lot on ROBLOX 2018 and ROBLOX changed a lot red to black.

Explanation:

irakobra [83]3 years ago

3 0

Answer: About 300,000 games?

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Implement the RC4 stream cipher in C++. User should be able to enter any key that is 5 bytes to 32 bytes long. Be sure to discar

gladu [14]

Answer:

Explanation:

#include <iostream>

#include <string>

#include<vector>

using namespace std;

vector<int> permute(vector<int>, vector<int>);

string encrypt(vector<int>s1 , vector<int> t1, string p);

string decrypt(vector<int>s1, vector<int> t1, string p);

int main() {

string plaintext = "cryptology";

string plaintext2 = "RC4";

vector<int> S(256);

vector<int> T(256);

int key[] = { 1,2,3,6 };

int key2[] = { 5,7,8,9 };

int tmp = 0;

for (int i = 0; i < 256;i++) {

S[i] = i;

T[i] = key[( i % (sizeof(key)/sizeof(*key)) )];

}

S = permute(S, T);

for (int i = 0; i < 256 ;i++) {

cout << S[i] << " ";

if ((i + 1) % 16 == 0)

cout << endl;

}

cout << endl;

string p = encrypt(S, T, plaintext);

cout << "Message: " << plaintext << endl;

cout << "Encrypted Message: " << " " << p << endl;

cout << "Decrypted Message: " << decrypt(S, T, p) << endl << endl;

tmp = 0;

for (int i = 0; i < 256;i++) {

S[i] = i;

T[i] = key2[(i % (sizeof(key) / sizeof(*key)))];

}

S = permute(S, T);

for (int i = 0; i < 256;i++) {

cout << S[i] << " ";

if ((i + 1) % 16 == 0)

cout << endl;

}

cout << endl;

p = encrypt(S, T, plaintext2);

cout << "Message: " << plaintext2 << endl;

cout << "Encrypted Msg: " << p << endl;

cout << "Decrypted Msg: "<<decrypt(S, T, p) << endl << endl;

return 0;

}

string decrypt(vector<int>s1, vector<int> t1, string p) {

int i = 0;

int j = 0;

int tmp = 0;

int k = 0;

int b;

int c;

int * plain = new int[p.length()];

string plainT;

for (int r = 0; r < p.length(); r++) {

i = (i + 1) % 256;

j = (j + s1[i]) % 256;

b = s1[i];

s1[i] = s1[j];

s1[j] = b;

tmp = (s1[i] + s1[j]) % 256;

k = s1[tmp];

c = ((int)p[r] ^ k);

plain[r] = c;

plainT += (char)plain[r];

}

return plainT;

}

string encrypt(vector<int>s1, vector<int> t1, string p) {

int i = 0;

int j = 0;

int tmp = 0;

int k = 0;

int b;

int c;

int * cipher = new int [p.length()];

string cipherT;

cout << "Keys Generated for plaintext: ";

for (int r = 0; r < p.length(); r++) {

i = (i + 1) % 256;

j = (j + s1[i]) % 256;

b = s1[i];

s1[i] = s1[j];

s1[j] = b;

tmp = (s1[i] + s1[j]) % 256;

k = s1[tmp];

cout << k << " ";

c = ((int)p[r] ^ k);

cipher[r] = c;

cipherT += (char)cipher[r];

}

cout << endl;

return cipherT;

}

vector<int> permute(vector<int> s1, vector<int> t1) {

int j = 0;

int tmp;

for (int i = 0; i< 256; i++) {

j = (j + s1[i] + t1[i]) % 256;

tmp = s1[i];

s1[i] = s1[j];

s1[j] = tmp;

}

return s1;

}

6 0

3 years ago

An interface that doesn’t contain any constants or methods is called a ____________ interface.

valina [46]

I dont under stand but i think it is a "plane"

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4 years ago

Which of the following is a set of security controls designed to protect payment account security such as a credit card transact

Marina CMI [18]

It’s the ONIST Framework

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3 years ago

Read 2 more answers

Which of the following is not one of the four criteria for evaluating websites?

Flura [38]

Answer:validity

Explanation:

Because it dont sound right

5 0

3 years ago

Given an int variable k that has already been declared, write some code that uses a for loop to print a single line consisting o

yawa3891 [41]

Answer:

The program to the given statement can be defined as follows:

Program:

//header file

#include <stdio.h> //defining header file

int main() //defining main method

{

int k; //defining integer variable k

for (k=1;k<=97;k++) //defining for loop

{

printf("*"); //print value asterisks

}

return 0;

}

Output:

*************************************************************************************************

Explanation:

Firstly, the headers file is included in the above C-language, and then the main method is described and all computations are performed with this method, which can be described as follows:

Inside the main method, an integer variable k is declared.
In the next line, the for loop is declared, which uses the variable k, which starts from 1 and ends when the value of k is less than equal to 97, inside the loop, it will print asterisks.

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4 years ago

How many different Roblox games were played in 2018​

How many different Roblox games were played in 2018