Rename S2V -> _S2V until we come up with a real PRF API

3 files changed, 7 insertions, 7 deletions

diff --git a/lib/Crypto/Cipher/blockalgo.py b/lib/Crypto/Cipher/blockalgo.py
index 98e0e00..84b9bc3 100644
--- a/lib/Crypto/Cipher/blockalgo.py
+++ b/lib/Crypto/Cipher/blockalgo.py
@@ -35,7 +35,7 @@ from Crypto.Util.number import long_to_bytes, bytes_to_long
 import Crypto.Util.Counter
 from Crypto.Hash import CMAC
 from Crypto.Hash.CMAC import _SmoothMAC
-from Crypto.Protocol.KDF import S2V
+from Crypto.Protocol.KDF import _S2V
 
 from Crypto.Util import galois
 
@@ -461,7 +461,7 @@ class BlockAlgo:
         # IV is optional
         self.nonce = _getParameter('nonce', 1, args, kwargs)
 
-        self._cipherMAC = S2V(key[:subkey_size], ciphermod=factory)
+        self._cipherMAC = _S2V(key[:subkey_size], ciphermod=factory)
         self._subkey_ctr = key[subkey_size:]
         self._mac_len = factory.block_size
 
diff --git a/lib/Crypto/Protocol/KDF.py b/lib/Crypto/Protocol/KDF.py
index 127be0c..c5967e4 100644
--- a/lib/Crypto/Protocol/KDF.py
+++ b/lib/Crypto/Protocol/KDF.py
@@ -126,7 +126,7 @@ def PBKDF2(password, salt, dkLen=16, count=1000, prf=None):
         i = i + 1
     return key[:dkLen]
 
-class S2V(object):
+class _S2V(object):
     """String-to-vector PRF as defined in `RFC5297`_.
 
     This class implements a pseudorandom function family
@@ -161,7 +161,7 @@ class S2V(object):
           ciphermod : module
             A block cipher module from `Crypto.Cipher`.
         """
-        return S2V(key, ciphermod)
+        return _S2V(key, ciphermod)
     new = staticmethod(new)
 
     def _double(self, bs):
diff --git a/lib/Crypto/SelfTest/Protocol/test_KDF.py b/lib/Crypto/SelfTest/Protocol/test_KDF.py
index 37cfb55..de09b41 100644
--- a/lib/Crypto/SelfTest/Protocol/test_KDF.py
+++ b/lib/Crypto/SelfTest/Protocol/test_KDF.py
@@ -31,7 +31,7 @@ from Crypto.SelfTest.st_common import list_test_cases
 from Crypto.Hash import SHA1, HMAC
 from Crypto.Cipher import AES, DES3
 
-from Crypto.Protocol.KDF import PBKDF1, PBKDF2, S2V
+from Crypto.Protocol.KDF import PBKDF1, PBKDF2, _S2V
 
 def t2b(t): return unhexlify(b(t))
 
@@ -127,7 +127,7 @@ class S2V_Tests(unittest.TestCase):
     def test1(self):
         """Verify correctness of test vector"""
         for tv in self._testData:
-            s2v = S2V.new(t2b(tv[1]), tv[3])
+            s2v = _S2V.new(t2b(tv[1]), tv[3])
             for s in tv[0]:
                 s2v.update(t2b(s))
             result = s2v.derive()
@@ -138,7 +138,7 @@ class S2V_Tests(unittest.TestCase):
         components are accepted."""
         key = bchr(0)*16
         for module in (AES, DES3):
-            s2v = S2V.new(key, module)
+            s2v = _S2V.new(key, module)
             max_comps = module.block_size*8-1
             for i in xrange(max_comps):
                 s2v.update(b("XX"))