hkdf-clarification.patch

diff --git a/08-transport.md b/08-transport.md
index d8edcf6..72fb64a 100644
--- a/08-transport.md
+++ b/08-transport.md
@@ -130,7 +130,7 @@ The following functions will also be referenced:
       * The returned value is the raw big-endian byte serialization of
         `x-coordinate` (using affine coordinates) of the generated point.
 
-  * `HKDF`: a function is defined in [5](#reference-5), evaluated with a
+  * `HKDF(salt,ikm)`: a function is defined in [5](#reference-5), evaluated with a
     zero-length `info` field.
      * All invocations of the `HKDF` implicitly return `64-bytes` of
        cryptographic randomness using the extract-and-expand component of the
@@ -414,9 +414,8 @@ construction, and `16 bytes` for a final authenticating tag.
      * where `zero` is a zero-length plaintext
 
 
-  * `sk, rk = HKDF(ck, zero)`
-     * where `zero` is a zero-length plaintext,
-
+  * `sk, rk = HKDF(ck, zero32)`
+     * where `zero32` is 32 zero bytes,
 
        `sk` is the key to be used by the initiator to encrypt messages to the
        responder,
@@ -465,9 +464,8 @@ construction, and `16 bytes` for a final authenticating tag.
        terminate the connection without any further messages.
 
 
-  * `rk, sk = HKDF(ck, zero)`
-     * where `zero` is a zero-length plaintext,
-
+  * `rk, sk = HKDF(ck, zero32)`
+     * where `zero32` is 32 zero bytes,
 
        `rk` is the key to be used by the responder to decrypt the messages sent
        by the initiator,