#pragma once
#include <string>
#include <vector>

using ByteVec = std::vector<unsigned char>;

constexpr int IV_LEN = 12;
constexpr int KEY_LEN = 32;
constexpr int SALT_LEN = 16;
constexpr int TAG_LEN = 16;

// Function declarations
ByteVec rb(int bytes);

ByteVec ec_wky(const std::string& plain, const ByteVec& key);
std::string dec_wky(const ByteVec& data, const ByteVec& key);

struct DerivedKey {
    ByteVec key;
    ByteVec salt;
};

DerivedKey dervk_p(const std::string& password, const ByteVec* saltOpt = nullptr, int iterations = 200000);
ByteVec ec_p(const std::string& plain, const std::string& password);
std::string dec_p(const ByteVec& data, const std::string& password, int iterations = 200000);