int GTHTTP_createTimestampData(const unsigned char *data, size_t data_len,
const char *url, GTTimestamp **timestamp)
{
int res = GT_UNKNOWN_ERROR;
GTDataHash *hash = NULL;
if (data == NULL || url == NULL || timestamp == NULL) {
res = GT_INVALID_ARGUMENT;
goto cleanup;
}
res = GTDataHash_create(GT_HASHALG_DEFAULT, data, data_len, &hash);
if (res != GT_OK) {
goto cleanup;
}
res = GTHTTP_createTimestampHash(hash, url, timestamp);
if (res != GT_OK) {
goto cleanup;
}
cleanup:
GTDataHash_free(hash);
return res;
}
void
timestampIt(GTDataHash *hash)
{
int r = GT_OK;
GTTimestamp *timestamp = NULL;
unsigned char *der = NULL;
char *sigFile = "logsigner.TIMESTAMP";
size_t der_len;
/* Get the timestamp. */
r = GTHTTP_createTimestampHash(hash,
"http://stamper.guardtime.net/gt-signingservice", ×tamp);
if(r != GT_OK) {
fprintf(stderr, "GTHTTP_createTimestampHash() failed: %d (%s)\n",
r, GTHTTP_getErrorString(r));
goto done;
}
/* Encode timestamp. */
r = GTTimestamp_getDEREncoded(timestamp, &der, &der_len);
if(r != GT_OK) {
fprintf(stderr, "GTTimestamp_getDEREncoded() failed: %d (%s)\n",
r, GT_getErrorString(r));
goto done;
}
/* Save DER-encoded timestamp to file. */
r = GT_saveFile(sigFile, der, der_len);
if(r != GT_OK) {
fprintf(stderr, "Cannot save timestamp to file %s: %d (%s)\n",
sigFile, r, GT_getErrorString(r));
if(r == GT_IO_ERROR) {
fprintf(stderr, "\t%d (%s)\n", errno, strerror(errno));
}
goto done;
}
printf("Timestamping succeeded!\n");
done:
GT_free(der);
GTTimestamp_free(timestamp);
}