Basic outline of the supported curves extension from RFC 4492

1 files changed, 25 insertions, 0 deletions

diff --git a/src/tls/tls_extensions.h b/src/tls/tls_extensions.h
index 2b386d9f5..d0aee6d04 100644
--- a/src/tls/tls_extensions.h
+++ b/src/tls/tls_extensions.h
@@ -189,6 +189,31 @@ class Next_Protocol_Notification : public TLS_Extension
    };
 
 /**
+* Supported Elliptic Curves Extension (RFC 4492)
+*/
+class Supported_Elliptic_Curves : public TLS_Extension
+   {
+   public:
+      static TLS_Handshake_Extension_Type static_type()
+         { return TLSEXT_USABLE_ELLIPTIC_CURVES; }
+
+      TLS_Handshake_Extension_Type type() const { return static_type(); }
+
+      const std::vector<std::string>& curves() const { return m_curves; }
+
+      MemoryVector<byte> serialize() const;
+
+      Supported_Elliptic_Curves(); // default values, for client
+
+      Supported_Elliptic_Curves(TLS_Data_Reader& reader,
+                                u16bit extension_size);
+
+      bool empty() const { return m_curves.empty(); }
+   private:
+      std::vector<std::string> m_curves;
+   };
+
+/**
 * Signature Algorithms Extension for TLS 1.2 (RFC 5246)
 */
 class Signature_Algorithms : public TLS_Extension