80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
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#ifndef _ECP_H
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#define _ECP_H
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#include <stdint.h>
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#include <stdlib.h>
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#include "remote_attestation_result.h"
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#ifndef SAMPLE_FEBITSIZE
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#define SAMPLE_FEBITSIZE 256
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#endif
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#define SAMPLE_ECP_KEY_SIZE (SAMPLE_FEBITSIZE/8)
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typedef struct sample_ec_priv_t {
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uint8_t r[SAMPLE_ECP_KEY_SIZE];
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} sample_ec_priv_t;
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typedef struct sample_ec_dh_shared_t {
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uint8_t s[SAMPLE_ECP_KEY_SIZE];
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} sample_ec_dh_shared_t;
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typedef uint8_t sample_ec_key_128bit_t[16];
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#define SAMPLE_EC_MAC_SIZE 16
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef _ERRNO_T_DEFINED
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#define _ERRNO_T_DEFINED
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typedef int errno_t;
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#endif
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errno_t memcpy_s(void *dest, size_t numberOfElements, const void *src,
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size_t count);
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#ifdef SUPPLIED_KEY_DERIVATION
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typedef enum _sample_derive_key_type_t {
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SAMPLE_DERIVE_KEY_SMK_SK = 0,
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SAMPLE_DERIVE_KEY_MK_VK,
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} sample_derive_key_type_t;
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bool derive_key(
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const sample_ec_dh_shared_t *p_shared_key,
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uint8_t key_id,
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sample_ec_key_128bit_t *first_derived_key,
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sample_ec_key_128bit_t *second_derived_key);
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#else
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typedef enum _sample_derive_key_type_t {
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SAMPLE_DERIVE_KEY_SMK = 0,
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SAMPLE_DERIVE_KEY_SK,
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SAMPLE_DERIVE_KEY_MK,
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SAMPLE_DERIVE_KEY_VK,
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} sample_derive_key_type_t;
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bool derive_key(
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const sample_ec_dh_shared_t *p_shared_key,
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uint8_t key_id,
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sample_ec_key_128bit_t *derived_key);
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#endif
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bool verify_cmac128(
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sample_ec_key_128bit_t mac_key,
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const uint8_t *p_data_buf,
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uint32_t buf_size,
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const uint8_t *p_mac_buf);
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#ifdef __cplusplus
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}
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#endif
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#endif
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