asdf

Author: 53142

.gitignore

@@ -9,6 +9,7 @@
 *.user
 *.userosscache
 *.sln.docstates
+*.dat
 
 # User-specific files (MonoDevelop/Xamarin Studio)
 *.userprefs

Encryption-Program/CMakeLists.txt

@@ -3,7 +3,7 @@
 #
 
 # Add source to this project's executable.
-add_executable (Encryption-Program "Encryption-Program.cpp" "Encryption-Program.h")
+add_executable (Encryption-Program "Encryption-Program.cpp" )
 
 if (CMAKE_VERSION VERSION_GREATER 3.12)
   set_property(TARGET Encryption-Program PROPERTY CXX_STANDARD 20)

Encryption-Program/Encryption-Program.cpp

@@ -1,48 +1,85 @@
-// Encryption-Program.cpp : Defines the entry point for the application.
-//
+// Date: 7/27/2024
+// By: 53142
 
 #include <iostream>
 #include <fstream>
+#include <string>
 
-#include "Encryption-Program.h"
 
-using namespace std;
+// Function for encrypting the data
+void encrypt() {
+	std::fstream file;
+	std::string input = "";
+	int key;
 
 
+	std::cout << "Opening file..." << std::endl;
+	file.open("file.dat", std::ios::in | std::ios::out | std::ios::binary | std::ios::trunc);
+	if (!file.is_open()) {
+		std::cout << "Error opening the file!" << std::endl;
+		throw new std::exception("Error opening the file!");
+	}
+
+	std::cout << "What is the encryption key?" << std::endl;
+	std::cin >> key;
+
+	std::cout << "What should the file contain?" << std::endl;
+	std::cin >> input;
 
-void encrypt() {
-	fstream file;
-	string input = "";
 
-	cout << "Opening file..." << endl;
-	file.open("file.dat", ios::in | ios::out | ios::binary | ios::trunc);
+	for (int i = 0; i < input.length(); i++) {
+		input[i] = input[i] + key;
+	}
 
-	cout << "What should the file contain?" << endl;
-	cin >> input;
 
-	cout << "Writing file..." << endl;
-	cout << "input: " << input << endl;
-	file.write(new char[input.length() + 1], input.length());
+	std::cout << "Writing file..." << std::endl;
+	file.write(input.c_str(), input.length());
 }
 
 
+// Function for decrypting the data
+void decrypt() {
+	std::string input = "";
+	int key;
+
+
+	std::cout << "Opening file..." << std::endl;
+
+	std::fstream file("file.dat");
+	if (!file.is_open()) {
+		std::cout << "Error opening the file!" << std::endl;
+		throw new std::exception("Error opening the file!");
+	}
 
+	std::cout << "What is the encryption key?" << std::endl;
+	std::cin >> key;
+
+	file >> input;
+
+	for (int i = 0; i < input.length(); i++) {
+		input[i] = input[i] - key;
+	}
+
+	std::cout << "Decrypted: " << input << std::endl;
+}
+
+
+// Main function
 int main() {
 	int choice;
-	cout << "Press 1 to encrypt. Press 2 to decrypt." << endl;
-
-	cin >> choice;
+	std::cout << "Press 1 to encrypt. Press 2 to decrypt." << std::endl;
+	std::cin >> choice;
 
 	switch (choice) {
 		case 1:
 			encrypt();
 			break;
 		case 2:
-			//decrypt();
+			decrypt();
 			break;
 		default:
-			cout << "Invalid input. Please enter 1 or 2." << endl;
+			std::cout << "Invalid input. Please enter 1 or 2." << std::endl;
 			break;
 	}
 	return 0;
-}
+}