--- a/handouts/ho01.tex	Thu Dec 15 16:27:06 2016 +0000
+++ b/handouts/ho01.tex	Wed Jan 04 12:02:06 2017 +0100
@@ -18,6 +18,11 @@
 % how to store passwords
 %https://nakedsecurity.sophos.com/2013/11/20/serious-security-how-to-store-your-users-passwords-safely/
 
+%hashes
+%http://web.archive.org/web/20071226014140/http://www.cits.rub.de/MD5Collisions/
+%https://blog.codinghorror.com/speed-hashing/
+%https://blogs.dropbox.com/tech/2016/09/how-dropbox-securely-stores-your-passwords/
+
 \section*{Handout 1 (Security Engineering)}