diff --git a/Bibliography.md b/Bibliography.md
index 4dce199..fc6d395 100644
--- a/Bibliography.md
+++ b/Bibliography.md
@@ -15,12 +15,14 @@ Here are some papers that are potentially of interest.
 
 ## Crypto
 
-### Symmetric Ciphers
+### Symmetric Primitives
 
 [Salsa20 Design](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.59.9522) a fast and secure cipher
 
 [Salsa20 Security Arguments](http://cr.yp.to/snuffle.html#security) why Salsa20 is probably safe against this and that threat
 
+[EnRUPT](http://www.enrupt.com/EnRUPT_007.pdf) a very simple, fast, and flexible primitive which could be used as both stream cipher and secure hash function (the two such primitives that we currently need) and which relies for its security on a large number of rounds.  The question of how many rounds to use is decided by semi-automated cryptanalysis.
+
 ### Elliptic Curve Cryptography
 
 [ECC Brainpool Standard Curves and Curve Generation](http://tools.ietf.org/html/draft-lochter-pkix-brainpool-ecc-01) new elliptic curve parameters which are more certain to be safe