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| #ifndef CRYS_ECPKI_DH_H |
| #define CRYS_ECPKI_DH_H |
| |
| /*! @file |
| @brief Defines the API that supports EC Diffie-Hellman shared secret value derivation primitives. |
| @defgroup crys_ecpki_dh CryptoCell ECC Diffie-Hellman APIs |
| @{ |
| @ingroup cryptocell_ecpki |
| */ |
| |
| |
| #include "crys_ecpki_types.h" |
| #include "crys_ecpki_error.h" |
| |
| #ifdef __cplusplus |
| extern "C" |
| { |
| #endif |
| |
| /*********************************************************************** |
| * CRYS_ECDH_SVDP_DH function * |
| ***********************************************************************/ |
| /*! |
| @brief Creates the shared secret value according to [IEEE1363, ANS X9.63]: |
| |
| <ol><li> Checks input-parameter pointers and EC Domain in public and private |
| keys.</li> |
| <li> Derives the partner public key and calls the EcWrstDhDeriveSharedSecret |
| function, which performs EC SVDP operations.</li></ol> |
| \note The term "User" |
| refers to any party that calculates a shared secret value using this primitive. |
| The term "Partner" refers to any other party of shared secret value calculation. |
| Partner's public key shall be validated before using in this primitive. |
| |
| @return CRYS_OK on success. |
| @return A non-zero value on failure as defined crys_ecpki_error.h. |
| */ |
| CIMPORT_C CRYSError_t CRYS_ECDH_SVDP_DH( |
| CRYS_ECPKI_UserPublKey_t *PartnerPublKey_ptr, /*!< [in] Pointer to a partner public key. */ |
| CRYS_ECPKI_UserPrivKey_t *UserPrivKey_ptr, /*!< [in] Pointer to a user private key. */ |
| uint8_t *SharedSecretValue_ptr, /*!< [out] Pointer to an output buffer that will contain the shared |
| secret value. */ |
| uint32_t *SharedSecrValSize_ptr, /*!< [in/out] Pointer to the size of user-passed buffer (in) and |
| actual size of output of calculated shared secret value |
| (out). */ |
| CRYS_ECDH_TempData_t *TempBuff_ptr /*!< [in] Pointer to a temporary buffer. */); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| /** |
| @} |
| */ |
| #endif |