Fix EdDSA in default TLS 1.2 signature algorithms. Closes #2766

CHANGELOG

@@ -1,5 +1,7 @@
 #Nmap Changelog ($Id$); -*-text-*-
 
+o [NSE][GH#2766] Fix TLS 1.2 signature algorithms for EdDSA. [Daniel Roethlisberger]
+
 o [GH#2672] Fixed an issue where TCP Connect scan (-sT) on Windows would fail to open any
   sockets, leading to scans that never finish. [Daniel Miller]
 

nselib/tls.lua

@@ -1691,13 +1691,11 @@ do
     {"sha256","rsa"},
     {"sha256","dsa"},
     {"sha256","ecdsa"},
-    {"sha256","ed25519"},
-    {"sha256","ed448"},
     {"sha512","rsa"},
     {"sha512","dsa"},
     {"sha512","ecdsa"},
-    {"sha512","ed25519"},
-    {"sha512","ed448"},
+    {"intrinsic","ed25519"},
+    {"intrinsic","ed448"},
   }
   DEFAULT_SIGALGS = EXTENSION_HELPERS["signature_algorithms"](sigalgs)
 end