diff --git a/Bibliography.md b/Bibliography.md
index c01104a..e13fa39 100644
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@@ -17,6 +17,10 @@ Here are some papers that are potentially of interest.
 
 [Endomorphisms for faster elliptic curve cryptography on general curves](http://eprint.iacr.org/2008/194) techniques to compute elliptic curve cryptography significantly faster in software.
 
+### Secure Hash Functions
+
+[Some thoughts on Collision Attacks in the Hash Functions MD5, SHA-0 and SHA-1](http://eprint.iacr.org/2005/391) general musings about design of secure hash functions
+
 ## Local Filesystems
 
 [Model-Based Failure Analysis of Journaling File Systems](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.78.8911) [PDF](http://www.cs.wisc.edu/wind/Publications/sfa-dsn05.pdf) compares ext3, reiserfs, and JFS under conditions of latent sector errors.  (Impatient people: read the Introduction and look at the table on page 9.)