Use https for all external links

Change-Id: I4ee473737b911885cf32bc417310b04645610cde
diff --git a/ndnspec-refs.bib b/ndnspec-refs.bib
index befcbb3..99b2f45 100644
--- a/ndnspec-refs.bib
+++ b/ndnspec-refs.bib
@@ -1,14 +1,3 @@
-%% This BibTeX bibliography file was created using BibDesk.
-%% http://bibdesk.sourceforge.net/
-
-
-%% Created for Alex Afanasyev at 2013-11-26 16:02:26 -0800 
-
-
-%% Saved with string encoding Unicode (UTF-8) 
-
-
-
 @phdthesis{afanasyev-phdthesis,
 	Author = {Alexander Afanasyev},
 	Date-Added = {2013-11-26 23:55:26 +0000},
@@ -16,17 +5,17 @@
 	Month = {December},
 	School = {UCLA},
 	Title = {Addressing Operational Challenges in {Named Data Networking} Through {NDNS} Distributed Database},
-	Year = {2013}}
-
+	Year = {2013}
+}
 @techreport{testbed-key-management,
 	Author = {Chaoyi Bian and Zhenkai Zhu and Alexander Afanasyev and Ersin Uzun and Lixia Zhang},
 	Date-Added = {2013-11-26 23:53:25 +0000},
 	Date-Modified = {2013-11-27 00:02:23 +0000},
 	Institution = {NDN},
 	Month = {February},
-	Note = {\url{http://named-data.net/techreports.html}},
+	Note = {\url{https://named-data.net/publications/techreports/trpublishkey-rev2/}},
 	Number = {NDN-0009, Revision 2},
 	Title = {Deploying Key Management on {NDN} Testbed},
 	Type = {Technical Report},
-	Year = {2013},
-	Bdsk-Url-1 = {http://named-data.net/techreports.html}}
+	Year = {2013}
+}