Don't expose extract and expand on this class yet because we don't know how best to expose verify functionality, continue testing the stages using the private methods.

1 files changed, 0 insertions, 16 deletions

diff --git a/cryptography/hazmat/primitives/kdf/hkdf.py b/cryptography/hazmat/primitives/kdf/hkdf.py
index 2b5ba815..ae24f676 100644
--- a/cryptography/hazmat/primitives/kdf/hkdf.py
+++ b/cryptography/hazmat/primitives/kdf/hkdf.py
@@ -57,27 +57,11 @@ class HKDF(object):
 
         self._used = False
 
-    def extract(self, key_material):
-        if self._used:
-            raise exceptions.AlreadyFinalized
-
-        self._used = True
-
-        return self._extract(key_material)
-
     def _extract(self, key_material):
         h = hmac.HMAC(self._salt, self._algorithm, backend=self._backend)
         h.update(key_material)
         return h.finalize()
 
-    def expand(self, key_material):
-        if self._used:
-            raise exceptions.AlreadyFinalized
-
-        self._used = True
-
-        return self._expand(key_material)
-
     def _expand(self, key_material):
         output = [b""]
         counter = 1