esp32-sk6812/include/ChallengeResponse.h

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#pragma once
#include <string>
class ChallengeResponse
{
public:
const unsigned long NONCE_LIFETIME_MS = 3000;
ChallengeResponse(const std::string &pw);
bool verify(const std::string &hash);
/*!
* Initiate a new challenge-response round.
*
* Updates the internal state and returns the nonce to be sent to the client.
* The challenge must be answered within NONCE_LIFETIME_MS milliseconds.
*
* \returns The nonce.
*/
uint32_t nonce(void);
private:
std::string m_passwd;
uint32_t m_currentNonce;
unsigned long m_expireTime;
};