Update pre10

apps/ca.c

@@ -255,7 +255,7 @@ int ca_main(int argc, char **argv)
     int batch = 0, default_op = 1, doupdatedb = 0, ext_copy = EXT_COPY_NONE;
     int keyformat = FORMAT_PEM, multirdn = 0, notext = 0, output_der = 0;
     int ret = 1, email_dn = 1, req = 0, verbose = 0, gencrl = 0, dorevoke = 0;
-    int rand_ser = 0, i, j, selfsign = 0;
+    int rand_ser = 0, i, j, selfsign = 0, def_nid, def_ret;
     long crldays = 0, crlhours = 0, crlsec = 0, days = 0;
     unsigned long chtype = MBSTRING_ASC, certopt = 0;
     X509 *x509 = NULL, *x509p = NULL, *x = NULL;
@@ -728,24 +728,28 @@ end_of_options:
         }
     }
 
-    if (md == NULL && (md = lookup_conf(conf, section, ENV_DEFAULT_MD)) == NULL)
-        goto end;
-
-    if (strcmp(md, "null") == 0) {
+    def_ret = EVP_PKEY_get_default_digest_nid(pkey, &def_nid);
+    /*
+     * EVP_PKEY_get_default_digest_nid() returns 2 if the digest is
+     * mandatory for this algorithm.
+     */
+    if (def_ret == 2 && def_nid == NID_undef) {
+        /* The signing algorithm requires there to be no digest */
         dgst = EVP_md_null();
+    } else if (md == NULL
+               && (md = lookup_conf(conf, section, ENV_DEFAULT_MD)) == NULL) {
+        goto end;
     } else {
         if (strcmp(md, "default") == 0) {
-            int def_nid;
-            if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0) {
+            if (def_ret <= 0) {
                 BIO_puts(bio_err, "no default digest\n");
                 goto end;
             }
             md = (char *)OBJ_nid2sn(def_nid);
         }
 
-        if (!opt_md(md, &dgst)) {
+        if (!opt_md(md, &dgst))
             goto end;
-        }
     }
 
     if (req) {