A little more project context, as I get started.

README.md

@@ -1,2 +1,23 @@
-# simple_crypto
+# Simple Crypto
+
 A simple little Rust crypto library, to inspire competition.
+
+This crate is being designed as a hobby project, because I enjoy the challenge
+of writing good crypto, and it seems like a good way to get pretty deep into
+Rust. Modules in the crate should include proper test cases, including both
+positive and negative test cases against all critical code; this will suffice
+as evidence of correctness until I can throw SAW and Cryptol at it to prove
+functional equivalence to specification.
+
+I will admit that I don't get terribly excited about timing attacks, and so
+while I will try not to leave obvious timing holes, I may miss some. If you
+see one, please create an issue or -- even better -- a pull request to fix it.
+
+Documentation wanted! Particularly for beginners! If a library doesn't make
+sense to you, or it's not clear where you should use it or what parameters
+make sense, file an issue! I want to make sure that this library is usable by
+people implementing crazy protocols -- I'm looking at you, Tor -- but I also
+want to make sure there's an obvious path for beginners.
+
+Patches always welcome! Constructive suggestions also very welcome. This
+crate is a hobby project, but that doesn't mean it can't be useful.