EC_KEY* readKeys(const char* filename) {
FILE* fp;
EC_KEY *key = NULL;
if ((fp = fopen(filename, "rt"))) {
// file opened successfully
qCDebug(commerce) << "opened key file" << filename;
if ((key = PEM_read_EC_PUBKEY(fp, NULL, NULL, NULL))) {
// now read private key
qCDebug(commerce) << "read public key";
if ((key = PEM_read_ECPrivateKey(fp, &key, passwordCallback, NULL))) {
qCDebug(commerce) << "read private key";
fclose(fp);
return key;
}
qCDebug(commerce) << "failed to read private key";
} else {
qCDebug(commerce) << "failed to read public key";
}
fclose(fp);
} else {
qCDebug(commerce) << "failed to open key file" << filename;
}
return key;
}
static EC_KEY *
keygen(const char *dbdir, const char *name,
const char *grpname, const char *use, bool adv,
const char *file, int line)
{
char fname[PATH_MAX];
char cmd[PATH_MAX*2];
EC_GROUP *grp = NULL;
EC_KEY *key = NULL;
FILE *f = NULL;
test(snprintf(fname, sizeof(fname), "%s/%s", dbdir, name) > 0);
test(snprintf(cmd, sizeof(cmd),
"../progs/tang-gen -%c %s %s %s >/dev/null",
adv ? 'A' : 'a', grpname, use, fname) > 1);
test(system(cmd) == 0);
test(f = fopen(fname, "r"));
test(grp = PEM_read_ECPKParameters(f, NULL, NULL, NULL));
test(EC_GROUP_get_curve_name(grp) != NID_undef);
test(key = PEM_read_ECPrivateKey(f, NULL, NULL, NULL));
test(EC_KEY_set_group(key, grp) > 0);
EC_GROUP_free(grp);
fclose(f);
return key;
}
// the private key should be read/copied into heap memory. For now, we need the EC_KEY struct
// so I'll return that.
EC_KEY* readPrivateKey(const char* filename) {
FILE* fp;
EC_KEY* key = NULL;
if ((fp = fopen(filename, "r"))) {
// file opened successfully
qCDebug(commerce) << "opened key file" << filename;
if ((key = PEM_read_ECPrivateKey(fp, &key, passwordCallback, NULL))) {
qCDebug(commerce) << "parsed private key file successfully";
} else {
qCDebug(commerce) << "couldn't parse" << filename;
// if the passphrase is wrong, then let's not cache it
DependencyManager::get<Wallet>()->setPassphrase("");
}
fclose(fp);
} else {
qCDebug(commerce) << "couldn't open" << filename;
}
return key;
}
