PasswordHasher.h

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#pragma once
 
#include <string>
#include <vector>
#include <cstdint>  // For uint8_t
 
class PasswordHasher {
public:
 
    static constexpr int DEFAULT_ITERATIONS = 1000;
    static constexpr size_t HASH_LENGTH = 32;
 
    PasswordHasher(int iterations = DEFAULT_ITERATIONS);
 
    std::vector<uint8_t> hashPassword(const std::string& password, const std::vector<uint8_t>& salt);
 
    bool verifyPassword(const std::string& password, const std::vector<uint8_t>& salt, const std::vector<uint8_t>& expectedHash);
 
    std::string hashPasswordBase64(const std::string& password, const std::vector<uint8_t>& salt);
 
    bool verifyPasswordBase64(const std::string& password, const std::vector<uint8_t>& salt, const std::string& expectedBase64Hash);
 
    std::string hashAndEncode(const std::string& password);
 
    bool verifyEncoded(const std::string& password, const std::string& combinedSaltAndHash);
 
    static std::string toBase64(const std::vector<uint8_t>& data);
 
    static std::vector<uint8_t> fromBase64(const std::string& base64);
 
    static std::vector<uint8_t> generateSalt(size_t length);
 
private:
    int iterations;
};