if(!o2i_ECPublicKey(ecdsa, &ppubkey, len)) {
logger(LOG_DEBUG, "o2i_ECPublicKey failed: %s", ERR_error_string(ERR_get_error(), NULL));
if(!o2i_ECPublicKey(ecdsa, &ppubkey, len)) {
logger(LOG_DEBUG, "o2i_ECPublicKey failed: %s", ERR_error_string(ERR_get_error(), NULL));