Add known_named_groups to EC_Group to list known curves. Fixes GX #1338.

2 files changed, 41 insertions, 0 deletions

diff --git a/src/lib/pubkey/ec_group/ec_group.h b/src/lib/pubkey/ec_group/ec_group.h
index ccd69a4dc..18ffed12c 100644
--- a/src/lib/pubkey/ec_group/ec_group.h
+++ b/src/lib/pubkey/ec_group/ec_group.h
@@ -13,6 +13,7 @@
 #include <botan/point_gfp.h>
 #include <botan/curve_gfp.h>
 #include <botan/asn1_oid.h>
+#include <set>
 
 namespace Botan {
 
@@ -134,6 +135,11 @@ class BOTAN_PUBLIC_API(2,0) EC_Group final
       */
       static std::string PEM_for_named_group(const std::string& name);
 
+      /**
+      * Return a set of known named EC groups
+      */
+      static const std::set<std::string>& known_named_groups();
+
    private:
       CurveGFp m_curve;
       PointGFp m_base_point;
diff --git a/src/lib/pubkey/ec_group/ec_named.cpp b/src/lib/pubkey/ec_group/ec_named.cpp
index fc4a67fc6..2a8e1a186 100644
--- a/src/lib/pubkey/ec_group/ec_named.cpp
+++ b/src/lib/pubkey/ec_group/ec_named.cpp
@@ -284,4 +284,39 @@ std::string EC_Group::PEM_for_named_group(const std::string& name)
    return "";
    }
 
+const std::set<std::string>& EC_Group::known_named_groups()
+   {
+   static const std::set<std::string> named_groups = {
+      "secp160k1",
+      "secp160r1",
+      "secp160r2",
+      "secp192k1",
+      "secp192r1",
+      "secp224k1",
+      "secp224r1",
+      "secp256k1",
+      "secp256r1",
+      "secp384r1",
+      "secp521r1",
+      "brainpool160r1",
+      "brainpool192r1",
+      "brainpool224r1",
+      "brainpool256r1",
+      "brainpool320r1",
+      "brainpool384r1",
+      "brainpool512r1",
+      "x962_p192v2",
+      "x962_p192v3",
+      "x962_p239v1",
+      "x962_p239v2",
+      "x962_p239v3",
+      "gost_256A",
+      "frp256v1",
+      "sm2p256v1"
+#if defined(BOTAN_HOUSE_ECC_CURVE_NAME)
+      ,BOTAN_HOUSE_ECC_CURVE_NAME
+#endif
+      };
+      return named_groups;
+   }
 }