Fix typo

rnapier · rnapier · commit b123f8ec4ac6 · 2014-01-28T16:52:56.000-05:00
diff --git a/draft-RNCryptor-Spec-v4.0.md b/draft-RNCryptor-Spec-v4.0.md
@@ -106,7 +106,7 @@ def Decrypt(prk[64], options[1], salt[16], validator[16], ciphertext, hmac[32])
 def KeyBasedEncrypt(key[32], plaintext) =
     salt = RandomDataOfLength(16 bytes)
 
-    // HDF-Extract
+    // HKDF-Extract
     prk = HMAC(SHA512, salt, key, 512 bits)
 
     options = 0
