slow progress, got password-to-scalar working

* ported spake2.py password-to-scalar function, since dalek's built-in one
  does it differently
* added "side" byte in messages: emit in start(), strip+check in input()
* rewrote transcript-hashing (since transcript is fixed-size)

This adds a lot of debug prints, and moves a bunch of test-only code into the
top level, all of which will need to be undone eventually.

1 files changed, 7 insertions, 5 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 4342a74..9083473 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,15 +1,17 @@
 
 extern crate rand;
 extern crate curve25519_dalek;
-extern crate sha2;
+//extern crate sha2;
+extern crate crypto;
+extern crate num_bigint;
+
+extern crate hex;
 
 mod spake2;
 pub use spake2::*;
 
-#[cfg(test)]
-extern crate num_bigint;
-#[cfg(test)]
-extern crate hex;
+//#[cfg(test)]
+//extern crate hex;
 
 #[cfg(test)]
 mod tests {