92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
#include <wolfssl/options.h>
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#include <wolfssl/wolfcrypt/settings.h>
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#include <wolfssl/wolfcrypt/ecc.h>
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#include <wolfssl/wolfcrypt/asn_public.h>
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#define MAX_TEMP_SIZE 1024
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int main(void)
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{
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int ret;
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ecc_key key;
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WC_RNG rng;
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Cert req;
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byte der[MAX_TEMP_SIZE], pem[MAX_TEMP_SIZE];
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int derSz, pemSz;
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ret = wc_ecc_init(&key);
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if (ret != 0) {
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printf("ECC init key failed: %d\n", ret);
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goto exit;
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}
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ret = wc_InitRng(&rng);
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if (ret != 0) {
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printf("Init rng failed: %d\n", ret);
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goto exit;
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}
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ret = wc_ecc_make_key_ex(&rng, 32, &key, ECC_SECP256R1);
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if (ret != 0) {
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printf("ECC make key failed: %d\n", ret);
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goto exit;
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}
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ret = wc_EccKeyToDer(&key, der, sizeof(der));
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if (ret <= 0) {
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printf("ECC Key To DER failed: %d\n", ret);
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goto exit;
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}
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derSz = ret;
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memset(pem, 0, sizeof(pem));
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ret = wc_DerToPem(der, derSz, pem, sizeof(pem), ECC_PRIVATEKEY_TYPE);
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if (ret <= 0) {
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printf("DER to PEM failed: %d\n", ret);
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goto exit;
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}
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pemSz = ret;
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printf("%s", pem);
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ret = wc_InitCert(&req);
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if (ret != 0) {
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printf("Init Cert failed: %d\n", ret);
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goto exit;
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}
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strncpy(req.subject.country, "US", CTC_NAME_SIZE);
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strncpy(req.subject.state, "OR", CTC_NAME_SIZE);
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strncpy(req.subject.locality, "Portland", CTC_NAME_SIZE);
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strncpy(req.subject.org, "wolfSSL", CTC_NAME_SIZE);
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strncpy(req.subject.unit, "Development", CTC_NAME_SIZE);
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strncpy(req.subject.commonName, "www.wolfssl.com", CTC_NAME_SIZE);
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strncpy(req.subject.email, "info@wolfssl.com", CTC_NAME_SIZE);
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ret = wc_MakeCertReq(&req, der, sizeof(der), NULL, &key);
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if (ret <= 0) {
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printf("Make Cert Req failed: %d\n", ret);
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goto exit;
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}
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derSz = ret;
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req.sigType = CTC_SHA256wECDSA;
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ret = wc_SignCert(req.bodySz, req.sigType, der, sizeof(der), NULL, &key, &rng);
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if (ret <= 0) {
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printf("Sign Cert failed: %d\n", ret);
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goto exit;
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}
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derSz = ret;
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ret = wc_DerToPem(der, derSz, pem, sizeof(pem), CERTREQ_TYPE);
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if (ret <= 0) {
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printf("DER to PEM failed: %d\n", ret);
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goto exit;
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}
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pemSz = ret;
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printf("%s", pem);
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exit:
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wc_ecc_free(&key);
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wc_FreeRng(&rng);
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return ret;
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}
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