ECCParams.h

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/*
 * Copyright (c) 2017-2018, Texas Instruments Incorporated
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#ifndef ti_drivers_cryptoutils_ecc_ECCParams__include
#define ti_drivers_cryptoutils_ecc_ECCParams__include

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>
#include <stdbool.h>

#include <ti/drivers/cryptoutils/cryptokey/CryptoKey.h>

/* Error status codes for the utility functions */

#define ECCParams_STATUS_SUCCESS         (0)

#define ECCParams_STATUS_ERROR           (-1)

typedef enum ECCParams_CurveType_ {
    ECCParams_CURVE_TYPE_SHORT_WEIERSTRASS = 0,
    ECCParams_CURVE_TYPE_MONTGOMERY,
    ECCParams_CURVE_TYPE_EDWARDS,
} ECCParams_CurveType;

typedef struct ECCParams_CurveParams_ {
    const ECCParams_CurveType   curveType;
    const size_t                length;         
    const uint8_t               *prime;         
    const uint8_t               *order;         
    const uint8_t               *a;             
    const uint8_t               *b;             
    const uint8_t               *generatorX;    
    const uint8_t               *generatorY;    
}
ECCParams_CurveParams;



/* Short Weierstrass curves */

extern const ECCParams_CurveParams ECCParams_NISTP224;

extern const ECCParams_CurveParams ECCParams_NISTP256;

extern const ECCParams_CurveParams ECCParams_NISTP384;

extern const ECCParams_CurveParams ECCParams_NISTP521;

extern const ECCParams_CurveParams ECCParams_BrainpoolP256R1;

extern const ECCParams_CurveParams ECCParams_BrainpoolP384R1;

extern const ECCParams_CurveParams ECCParams_BrainpoolP512R1;



/* Montgomery curves */

extern const ECCParams_CurveParams ECCParams_Curve25519;



/* Edwards curves */

/* Utility functions */

int_fast16_t ECCParams_FormatCurve25519PrivateKey(CryptoKey *myPrivateKey);

#ifdef __cplusplus
}
#endif

#endif /* ti_drivers_cryptoutils_ecc_ECCParams__include */