ASN1_item_new_ex
msg = (OSSL_CMP_MSG *)ASN1_item_new_ex(ASN1_ITEM_rptr(OSSL_CMP_MSG),
ci = (CMS_ContentInfo *)ASN1_item_new_ex(ASN1_ITEM_rptr(CMS_ContentInfo),
PKCS7 *pkcs7 = (PKCS7 *)ASN1_item_new_ex(ASN1_ITEM_rptr(PKCS7), libctx,
pubkey = (X509_PUBKEY *)ASN1_item_new_ex(X509_PUBKEY_it(), libctx, propq);
cert = (X509 *)ASN1_item_new_ex(X509_it(), libctx, propq);
ASN1_VALUE *ASN1_item_new_ex(const ASN1_ITEM *it, OSSL_LIB_CTX *libctx,