int load_cert_crl_http(const char *url, BIO *err,
X509 **pcert, X509_CRL **pcrl);
EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,
int load_cert_crl_http(const char *url, BIO *err,
X509 **pcert, X509_CRL **pcrl);
EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,