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
sign(const char *buf, const size_t len)
{
int r;
GTDataHash *hash = NULL;
printf("hash for '%s' is ", buf);
r = GTDataHash_create(GT_HASHALG_SHA256, (const unsigned char*)buf, len, &hash);
if(r != GT_OK) {
fprintf(stderr, "GTTDataHash_create() failed: %d (%s)\n",
r, GT_getErrorString(r));
goto done;
}
outputhash(hash);
timestampIt(hash); /* of course, this needs to be moved to once at end ;) */
done: GTDataHash_free(hash);
}
int GTHTTP_verifyTimestampData(const GTTimestamp *ts,
const unsigned char *data, size_t data_len,
const char *ext_url, GTTimestamp **ext_ts,
const GTPublicationsFile *pub, const char *pub_url,
int parse, GTVerificationInfo **ver)
{
int res = GT_UNKNOWN_ERROR;
int algo;
GTDataHash *hash = NULL;
if (ts == NULL || data == NULL || ver == NULL) {
res = GT_INVALID_ARGUMENT;
goto cleanup;
}
if ((pub != NULL) + (pub_url != NULL) != 1) {
res = GT_INVALID_ARGUMENT;
goto cleanup;
}
res = GTTimestamp_getAlgorithm(ts, &algo);
if (res != GT_OK) {
goto cleanup;
}
res = GTDataHash_create(algo, data, data_len, &hash);
if (res != GT_OK) {
goto cleanup;
}
res = GTHTTP_verifyTimestampHash(ts, hash,
ext_url, ext_ts, pub, pub_url, parse, ver);
cleanup:
GTDataHash_free(hash);
return res;
}
