google_authenticator.h

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#ifndef CPPSECURITY_GOOGLE_AUTHENTICATOR_H
#define CPPSECURITY_GOOGLE_AUTHENTICATOR_H
 
#include "password.h"
 
#include "time/timestamp.h"
 
namespace CppSecurity {
 
 
class GoogleAuthenticator
{
public:
 
    GoogleAuthenticator(size_t secret_length = 12, size_t pin_length = 6);
    GoogleAuthenticator(const GoogleAuthenticator&) = default;
    GoogleAuthenticator(GoogleAuthenticator&&) = default;
    ~GoogleAuthenticator() = default;
 
    GoogleAuthenticator& operator=(const GoogleAuthenticator&) = default;
    GoogleAuthenticator& operator=(GoogleAuthenticator&&) = default;
 
    size_t secret_length() const noexcept { return _secret_length; }
    size_t pin_length() const noexcept { return _pin_length; }
 
 
    std::string GenerateSalt() const;
 
 
    std::password GenerateSecret(std::string_view password) const;
 
    std::password GenerateSecret(std::string_view password, std::string_view salt) const;
 
 
    std::password GenerateURL(std::string_view identifier, std::string_view secret) const;
 
 
    std::password GenerateQRCodeLink(std::string_view url, size_t width = 100, size_t height = 100) const;
 
 
    size_t GenerateToken(std::string_view secret, const CppCommon::Timestamp& timestamp = CppCommon::UtcTimestamp()) const;
 
 
    bool Validate(size_t token, std::string_view secret, const CppCommon::Timestamp& timestamp = CppCommon::UtcTimestamp()) const;
 
    bool Validate(size_t token, std::string_view password, std::string_view salt, const CppCommon::Timestamp& timestamp = CppCommon::UtcTimestamp()) const;
 
private:
    size_t _secret_length;
    size_t _pin_length;
};
 
} // namespace CppSecurity
 
#endif // CPPSECURITY_GOOGLE_AUTHENTICATOR_H