src: check curve ID existence instead of asn flags

Simplify the code. The flag check was in the OpenSSL source, but reading through the docs and source, it is not necessary. Refs: https://github.com/nodejs/node/pull/24358/files#r243099693 PR-URL: #25345 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: Tobias Nießen <[email protected]>
nodejs · Jan 8, 2019 · 5b93356 · 5b93356
1 parent 7d1d261
commit 5b93356
Showing 1 changed file with 9 additions and 12 deletions.
diff --git a/src/node_crypto.cc b/src/node_crypto.cc
@@ -1721,21 +1721,18 @@ static Local<Object> X509ToObject(Environment* env, X509* cert) {
       CHECK_NULL(pub);
     }
 
-    if (EC_GROUP_get_asn1_flag(group) != 0) {
+    const int nid = EC_GROUP_get_curve_name(group);
+    if (nid != 0) {
       // Curve is well-known, get its OID and NIST nick-name (if it has one).
 
-      int nid = EC_GROUP_get_curve_name(group);
-      if (nid != 0) {
-        if (const char* sn = OBJ_nid2sn(nid)) {
-          info->Set(context, env->asn1curve_string(),
-                    OneByteString(env->isolate(), sn)).FromJust();
-        }
+      if (const char* sn = OBJ_nid2sn(nid)) {
+        info->Set(context, env->asn1curve_string(),
+                  OneByteString(env->isolate(), sn)).FromJust();
       }
-      if (nid != 0) {
-        if (const char* nist = EC_curve_nid2nist(nid)) {
-          info->Set(context, env->nistcurve_string(),
-                    OneByteString(env->isolate(), nist)).FromJust();
-        }
+
+      if (const char* nist = EC_curve_nid2nist(nid)) {
+        info->Set(context, env->nistcurve_string(),
+                  OneByteString(env->isolate(), nist)).FromJust();
       }
     } else {
       // Unnamed curves can be described by their mathematical properties,