C++에서 민감한 데이터를 어떻게 관리하고 보호하나요?

#include <openssl/aes.h>

int main() {
  // 生成随机密钥
  unsigned char key[AES_KEY_SIZE];
  RAND_bytes(key, AES_KEY_SIZE);

  // 初始化 AES 加密器
  AES_KEY aes_key;
  AES_set_encrypt_key(key, AES_KEY_SIZE * 8, &aes_key);

  // 加密数据
  unsigned char data[] = "Sensitive data";
  unsigned char encrypted_data[AES_BLOCK_SIZE];
  AES_encrypt(data, encrypted_data, &aes_key);

  // 解密数据
  AES_decrypt(encrypted_data, data, &aes_key);

  return 0;
}

#include <boost/tokenizer.hpp>

int main() {
  // 定义令牌分隔符
  const char delimiter = ',';

  // 原始数据
  std::string original_data = "John Doe,123 Main Street,Anytown,CA";

  // 创建令牌分隔符
  boost::char_separator<char> sep(delimiter);

  // 令牌化数据
  std::vector<std::string> tokens;
  boost::split(tokens, original_data, sep);

  // 输出令牌化数据
  for (auto& token : tokens) {
    std::cout << token << std::endl;
  }

  return 0;
}

#include <fmt/format.h>

int main() {
  // 原始数据
  std::string name = "John Doe";
  std::string address = "123 Main Street";

  // 掩盖姓氏
  std::string masked_name = fmt::format("{0} ***", name);

  // 掩盖地址
  std::string masked_address = fmt::format("*{0}", address);

  // 输出掩盖后的数据
  std::cout << "Masked name: " << masked_name << std::endl;
  std::cout << "Masked address: " << masked_address << std::endl;

  return 0;
}