int NETSCAPE_SPKI_print(BIO *out, NETSCAPE_SPKI *spki);
+int X509_signature_print(BIO *bp,X509_ALGOR *alg, ASN1_STRING *sig);
+
int X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md);
int X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md);
int X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md);