1_INTEGER *serial);

 int OSSL_CRMF_MSG_set0_extensions(OSSL_CRMF_MSG *crm, X509_EXTENSIONS *exts);

 int OSSL_CRMF_MSG_push0_extension(OSSL_CRMF_MSG *crm, X509_EXTENSION *ext);

 int OSSL_CRMF_MSG_create_popo(int meth, OSSL_CRMF_MSG *crm,
                               EVP_PKEY *pkey, const EVP_MD *digest,
                               OSSL_LIB_CTX *libctx, const char *propq);

 int OSSL_CRMF_MSGS_verify_popo(const OSSL_CRMF_MSGS *reqs,
                                int rid, int acceptRAVerified,
      