ecdsap256base.h

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/* 2020-2026 Quantum Resistant Cryptographic Solutions Corporation
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 * CRYPTOGRAPHIC ALGORITHMS AND IMPLEMENTATIONS:
 * - This software includes implementations of cryptographic primitives and
 *   algorithms that are standardized or in the public domain, such as AES
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 *   algorithms designed by QRCS, including but not limited to RCS, SCB, CSX, QMAC, and
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 * Written by: John G. Underhill
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 */
 
#ifndef QSC_ECNISTP256BASE_H
#define QSC_ECNISTP256BASE_H
 
#include "qsccommon.h"
QSC_CPLUSPLUS_ENABLED_START


#define EC_NISTP256_SEED_SIZE 32U

#define EC_NISTP256_PUBLICKEY_SIZE  64U

#define EC_NISTP256_PRIVATEKEY_SIZE 96U

#define EC_NISTP256_SIGNATURE_SIZE  64U

#define EC_NISTP256_SHAREDSECRET_SIZE 32U

int32_t qsc_p256_publickey_from_privatekey(uint8_t* publickey, const uint8_t* privatekey);

int32_t qsc_p256_keypair(uint8_t* publickey, uint8_t* privatekey, const uint8_t* seed);

int32_t qsc_p256_sign(uint8_t* signedmsg, size_t* smsglen, const uint8_t* message, size_t msglen, const uint8_t* privatekey);

int32_t qsc_p256_sign_scalar(uint8_t* signedmsg, size_t* smsglen, const uint8_t* message, size_t msglen, const uint8_t* privatekey);

bool qsc_p256_verify(uint8_t* message, size_t* msglen, const uint8_t* signedmsg, size_t smsglen, const uint8_t* publickey);
 
QSC_CPLUSPLUS_ENABLED_END
 
#endif