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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.  
  6. 	unsigned int data = 0x00000000;
  7. 	char mask = 0b00001111;				     // mask for 4 bits
  8. 	char c1 = 0, c2 = 0, c3 = 0, c4 = 0;	 // characters for encryption
  9. 	char d1 = 0, d2 = 0, d3 = 0, d4 = 0;	 // characters for decryption
  10.  
  11. 	cout << "Please input 4 characters:" << endl;
  12. 	cin >> c1 >> c2 >> c3 >> c4;
  13. 	cout << endl;
  14.  
  15. 	data =
  16. 		(static_cast<unsigned int>(mask << 4 & c4) << 24) | (static_cast<unsigned int>(mask & c4) << 20) |
  17. 		(static_cast<unsigned int>(mask << 4 & c3) << 20) | (static_cast<unsigned int>(mask & c3) << 16) |
  18. 		(static_cast<unsigned int>(mask << 4 & c2) << 8) | (static_cast<unsigned int>(mask & c2) << 4) |
  19. 		(static_cast<unsigned int>(mask << 4 & c1) << 4) | (static_cast<unsigned int>(mask & c1));
  20.  
  21. 	cout << "The encrypted result is (hex): 0x" << hex << data << endl;
  22. 	cout << endl;
  23.  
  24.  
  25.  
  26.  
  27.  
  28. 	cout << endl;
  29. 	cout << "The decrypted characters are: " << d1 << ' ' << d2 << ' ' << d3 << ' ' << d4 << endl;
  30.  
  31. 	cout << endl;
  32. 	return 0;
  33. }
Success #stdin #stdout 0.01s 5272KB
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Please input 4 characters:

The encrypted result is (hex): 0x308


The decrypted characters are:
https://ideone.com/Ny4Nkn
language:
C++ (gcc 8.3)
created:
15 days ago
visibility:
public

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