security.h

#ifndef SECURITY_H
#define SECURITY_H

#include <string>

// ================= SELF-DESTRUCT =================
// Deletes sensitive files permanently
void destroyVault();


// ================= EXPIRY CHECK =================
// Checks if vault has expired and triggers destroyVault if needed
void checkExpiry();


// ================= ENCRYPTION =================
// Simple encryption prototype (shift cipher)
std::string encrypt(std::string s);
std::string decrypt(std::string s);


// ================= PASSWORD STRENGTH =================
// Returns score 1-4 based on:
// 1 = uppercase, 2 = lowercase, 3 = digit, 4 = special char
int passwordStrength(std::string pwd);

#endif