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