01_GenerateKeyPair

Example code to Generate a Key Pair. More...

Collaboration diagram for 01_GenerateKeyPair:

Example code to Generate a Key Pair.

/* Reader Library Headers. */
#include <phKeyStore.h>
#include <phCryptoASym.h>
 
/* Standard Header. */
#include <string.h>
 
#define CHECK_SUCCESS(x)                                                                             \
     if ( (x) != PH_ERR_SUCCESS )                                                                    \
     {                                                                                               \
             printf ( "\n\n" );                                                                      \
             printf ( "An error occurred: (0x%04X)\n", (x) );                                        \
             printf ( "Pressing any key will exit the demo.\n" );                                    \
             _getch ();                                                                              \
             return 0;                                                                               \
     }
 
#define KEY_ENTRIES              10
#define KEY_VERSION_PAIRS        3 * KEY_ENTRIES
#define KEY_USAGE_COUNTER        15
 
#define TRUE PH_ON
#define FALSE PH_OFF
 
/* Variables */
phStatus_t wStatus = 0;
 
phCryptoASym_Sw_DataParams_t stCryptoASym;
phKeyStore_Sw_DataParams_t stKeyStore;
phKeyStore_Sw_KeyEntry_t aKeyEntry[KEY_ENTRIES];
phKeyStore_Sw_KeyVersionPair_t aKeyVersion[KEY_VERSION_PAIRS];
phKeyStore_Sw_KUCEntry_t aKeyUsageCounter[KEY_USAGE_COUNTER];
 
/* Initialize software keystore component. */
CHECK_SUCCESS(phKeyStore_Sw_Init(&stKeyStore, sizeof(stKeyStore), aKeyEntry, KEY_ENTRIES, aKeyVersion, 2,
     aKeyUsageCounter, KEY_USAGE_COUNTER), TRUE);
 
/* Initialize ASymmetric component. */
CHECK_SUCCESS(phCryptoASym_Sw_Init(&stCryptoASym, sizeof(stCryptoASym), &stKeyStore, aInternalBuffer, wInternalBuffSize), TRUE);
 
/* Generate Keypair
 *   Here ECC key type with SECP256R1 as Curve are used for Key Pair generation.
 */
CHECK_SUCCESS(phCryptoASym_GenerateKeyPair(&stCryptoASym, PH_CRYPTOASYM_KEYMODE_EPHEMERAL, PH_CRYPTOASYM_KEY_TYPE_ECC,
     PH_CRYPTOASYM_CURVE_BY_NAME, (uint8_t *) PH_CRYPTOASYM_CURVE_NAME_SECP256R1,
     (uint16_t) strlen(PH_CRYPTOASYM_CURVE_NAME_SECP256R1)), TRUE);