Merge pull request #28 from KirtiPratihar/patch-1

Create Simple_Password_Manager

Author: N00BSC00B

projects/beginner/Simple_Password_Manager

@@ -0,0 +1,88 @@
+import base64
+import getpass
+import json
+
+# For demonstration purposes, using a simple XOR cipher
+
+def xor_encrypt_decrypt(data, key):
+    """Simple XOR encryption/decryption."""
+    data_bytes = data.encode('utf-8')
+    key_bytes = key.encode('utf-8')
+    key_len = len(key_bytes)
+    result = bytearray()
+    for i in range(len(data_bytes)):
+        result.append(data_bytes[i] ^ key_bytes[i % key_len])
+    return base64.b64encode(result).decode('utf-8')
+
+def xor_decrypt_data(encrypted_data, key):
+    """Simple XOR decryption."""
+    encrypted_bytes = base64.b64decode(encrypted_data.encode('utf-8'))
+    key_bytes = key.encode('utf-8')
+    key_len = len(key_bytes)
+    result = bytearray()
+    for i in range(len(encrypted_bytes)):
+        result.append(encrypted_bytes[i] ^ key_bytes[i % key_len])
+    return result.decode('utf-8')
+
+def save_passwords(passwords, master_key):
+    """Encrypt and save passwords to a file."""
+    encrypted_passwords = {
+        key: xor_encrypt_decrypt(value, master_key)
+        for key, value in passwords.items()
+    }
+    with open("passwords.json", "w") as f:
+        json.dump(encrypted_passwords, f)
+    print("Passwords saved successfully.")
+
+def load_passwords(master_key):
+    """Load and decrypt passwords from a file."""
+    try:
+        with open("passwords.json", "r") as f:
+            encrypted_passwords = json.load(f)
+        
+        passwords = {}
+        for key, value in encrypted_passwords.items():
+            passwords[key] = xor_decrypt_data(value, master_key)
+            
+        return passwords
+    except FileNotFoundError:
+        return {}
+    except Exception as e:
+        print(f"Error loading passwords: {e}")
+        return {}
+
+def main():
+    """Main function for the password manager."""
+    master_key = getpass.getpass("Enter your master password: ")
+    passwords = load_passwords(master_key)
+    
+    while True:
+        print("\nWhat would you like to do?")
+        print("1. Add a new password")
+        print("2. Get a password")
+        print("3. Exit")
+        
+        choice = input("Enter your choice: ")
+        
+        if choice == "1":
+            service = input("Enter the service/website name: ").strip()
+            password = getpass.getpass("Enter the password: ")
+            passwords[service] = password
+            save_passwords(passwords, master_key)
+            
+        elif choice == "2":
+            service = input("Enter the service/website name to retrieve: ").strip()
+            if service in passwords:
+                print(f"Password for {service}: {passwords[service]}")
+            else:
+                print(f"No password found for {service}.")
+                
+        elif choice == "3":
+            print("Exiting...")
+            break
+            
+        else:
+            print("Invalid choice. Please try again.")
+
+if __name__ == "__main__":
+    main()