crypto_ecdh.h

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#ifndef CRYPTO_ECDH_H_
#define CRYPTO_ECDH_H_
 
#include <osal.h>
#include <crypto_ec.h>
#include <stdint.h>
 
typedef enum {
        CRYPTO_ECDH_RET_OK = 0,       
        CRYPTO_ECDH_RET_TO = 1,       
        CRYPTO_ECDH_RET_EE = 2,       
        CRYPTO_ECDH_RET_MP = 3,       
        CRYPTO_ECDH_RET_IP = 4,       
        CRYPTO_ECDH_RET_ER = 5        
} CRYPTO_ECDH_RET;
 
enum crypto_ecdh_context_flags {
        CRYPTO_ECDH_CTX_d = 0x1,                
        CRYPTO_ECDH_CTX_Ql = 0x2,               
        CRYPTO_ECDH_CTX_Qp = 0x4,               
        CRYPTO_ECDH_CTX_s = 0x8,                
};
 
typedef struct {
        uint8_t d[32];                          
        uint8_t Ql[2][32];                      
        uint8_t Qp[2][32];                      
        uint8_t s[32];                          
        crypto_ec_params_t curve;               
        unsigned int flags;                     
} crypto_ecdh_context_t;
 
#define CRYPTO_ECDH_INIT_CTX(curve_init)       { {0}, {{0}, {0}}, {{0}, {0}}, {0}, curve_init, 0 }
 
CRYPTO_ECDH_RET crypto_ecdh_compute(crypto_ecdh_context_t *ctx, OS_TICK_TIME timeout);
 
CRYPTO_ECDH_RET crypto_ecdh_init_context(crypto_ecdh_context_t *ctx, CRYPTO_ECC_CURVE curve_type);
 
#endif  /* CRYPTO_ECDH_H_ */