A company wants to transmit data over the Internet but is concerned about the se

Question

 A company wants to transmit data over the Internet but is concerned about 
the  security of the sensitive data. All of the data are transmitted as 
four-digit  integers. The company asked you to write a program that encrypts 
the data so that it
can  be transmitted securely. Your program should read a four-digit integer and 
encrypt it as follows: Replace each digit (the sum of that digit plus 7) 
modulus 10. Then, swap the first digit with the third, swap the second with 
the fourth and print the
encrypted integer. Add decryption functionality to your program above 
that inputs an encrypted four-digit integer and decrypts it to form
the original number. 

Expected Output:

(i)
Enter a four-digit number: 3456
Encrypted number is 2301
Enter an encrypted number: 2301
Decrypted number is 3456

(ii)
Enter a four-digit number: 0005
Encrypted number is 7277
Enter an encrypted number: 7277
Decrypted number is 5

Explanation / Answer

please rate - thanks #include using namespace std; int main() {int num,n1,n2,n3; coutnum; n1=(num%10+7)%10; num/=10; n2=(num%10+7)%10; num/=10; n3=(num%10+7)%10; num=(num/10+7)%10; num=n2*1000+n1*100+num*10+n3; cout

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.