C++ (Cpp) ec_param_set_anyの例

コード例 #1

ファイル: util.c プロジェクト: tfar/sccd

void sccd_init() {
#if defined(SCCD_BACKEND_RELIC)
	core_init();
	ec_param_set_any();
#endif
	sccd_random_init();
}

コード例 #2

ファイル: tests-relic.c プロジェクト: Cr0s/RIOT

static void tests_relic_ecdh(void)
{
    /*  The following is an example for doing an elliptic-curve Diffie-Hellman
        key exchange.
    */

    /* Select an elliptic curve configuration */
    if (ec_param_set_any() == STS_OK) {
#if (TEST_RELIC_SHOW_OUTPUT == 1)
        ec_param_print();
#endif

        bn_t privateA;
        ec_t publicA;
        uint8_t sharedKeyA[MD_LEN];

        bn_t privateB;
        ec_t publicB;
        uint8_t sharedKeyB[MD_LEN];

        bn_null(privateA);
        ec_null(publicA);

        bn_new(privateA);
        ec_new(publicA);

        bn_null(privateB);
        ec_null(publicB);

        bn_new(privateB);
        ec_new(publicB);

        /* User A generates private/public key pair */
        TEST_ASSERT_EQUAL_INT(STS_OK, cp_ecdh_gen(privateA, publicA));

#if (TEST_RELIC_SHOW_OUTPUT == 1)
        printf("User A\n");
        printf("======\n");
        printf("private key: ");
        bn_print(privateA);
        printf("\npublic key:  ");
        ec_print(publicA);
        printf("\n");
#endif

        /* User B generates private/public key pair */
        TEST_ASSERT_EQUAL_INT(STS_OK, cp_ecdh_gen(privateB, publicB));

#if (TEST_RELIC_SHOW_OUTPUT == 1)
        printf("User B\n");
        printf("======\n");
        printf("private key: ");
        bn_print(privateB);
        printf("\npublic key:  ");
        ec_print(publicB);
        printf("\n");
#endif

        /* In a protocol you would exchange the public keys now */

        /* User A calculates shared secret */
        TEST_ASSERT_EQUAL_INT(STS_OK, cp_ecdh_key(sharedKeyA, MD_LEN, privateA, publicB));

#if (TEST_RELIC_SHOW_OUTPUT == 1)
        printf("\nshared key computed by user A: ");
        print_mem(sharedKeyA, MD_LEN);
#endif

        /* User B calculates shared secret */
        TEST_ASSERT_EQUAL_INT(STS_OK, cp_ecdh_key(sharedKeyB, MD_LEN, privateB, publicA));

#if (TEST_RELIC_SHOW_OUTPUT == 1)
        printf("\nshared key computed by user B: ");
        print_mem(sharedKeyB, MD_LEN);
#endif

        /* The secrets should be the same now */
        TEST_ASSERT_EQUAL_INT(CMP_EQ, util_cmp_const(sharedKeyA, sharedKeyB, MD_LEN));

        bn_free(privateA);
        ec_free(publicA);

        bn_free(privateB);
        ec_free(publicB);
#if (TEST_RELIC_SHOW_OUTPUT == 1)
        printf("\nRELIC EC-DH test successful\n");
#endif
    }

}