From 9e2b6af8c34efba80d141490b48b82a3c2185ae5 Mon Sep 17 00:00:00 2001
From: Legrandin <helderijs@gmail.com>
Date: Sat, 26 Apr 2014 09:10:19 +0200
Subject: Make Cipher.galois module private

---
 lib/Crypto/Cipher/blockalgo.py |  8 ++++----
 setup.py                       |  4 ++--
 src/galois.c                   | 18 +++++++++---------
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/lib/Crypto/Cipher/blockalgo.py b/lib/Crypto/Cipher/blockalgo.py
index db45404..002726c 100644
--- a/lib/Crypto/Cipher/blockalgo.py
+++ b/lib/Crypto/Cipher/blockalgo.py
@@ -37,7 +37,7 @@ from Crypto.Hash import CMAC
 from Crypto.Hash.CMAC import _SmoothMAC
 from Crypto.Protocol.KDF import _S2V
 
-from Crypto.Util import galois
+from Crypto.Util import _galois
 
 #: *Electronic Code Book (ECB)*.
 #: This is the simplest encryption mode. Each of the plaintext blocks
@@ -331,9 +331,9 @@ class _GHASH(_SmoothMAC):
 
     def __init__(self, hash_subkey, block_size):
         _SmoothMAC.__init__(self, block_size, None, 0)
-        self._hash_subkey = galois._ghash_expand(hash_subkey)
+        self._hash_subkey = _galois.ghash_expand(hash_subkey)
         self._last_y = bchr(0) * 16
-        self._mac = galois._ghash
+        self._mac = _galois.ghash
 
     def copy(self):
         clone = _GHASH(self._hash_subkey, self._bs)
@@ -342,7 +342,7 @@ class _GHASH(_SmoothMAC):
         return clone
 
     def _update(self, block_data):
-        self._last_y = galois._ghash(block_data, self._last_y,
+        self._last_y = _galois.ghash(block_data, self._last_y,
                                      self._hash_subkey)
 
     def _digest(self, left_data):
diff --git a/setup.py b/setup.py
index 5269e9d..8099299 100644
--- a/setup.py
+++ b/setup.py
@@ -81,7 +81,7 @@ if sys.version_info[0] == 2:
 else:
     EXCLUDE_PY = [
         # We don't want Py3k to choke on the 2.x compat code
-        ('Crypto.Util', 'py21compat'), 
+        ('Crypto.Util', 'py21compat'),
     ]
     if sys.platform != "win32": # Avoid nt.py, as 2to3 can't fix it w/o winrandom
         EXCLUDE_PY += [('Crypto.Random.OSRNG','nt')]
@@ -481,7 +481,7 @@ kw = {'name':"pycrypto",
             Extension("Crypto.Util.cpuid",
                       include_dirs=['src/'],
                       sources=['src/cpuid.c']),
-            Extension("Crypto.Util.galois",
+            Extension("Crypto.Util._galois",
                       include_dirs=['src/'],
                       sources=['src/galois.c']),
 
diff --git a/src/galois.c b/src/galois.c
index 0da79e6..05b91c7 100644
--- a/src/galois.c
+++ b/src/galois.c
@@ -175,7 +175,7 @@ static void ghash(
 }
 
 static char ghash_expand__doc__[] =
-"_ghash_expand(h:str) -> str\n"
+"ghash_expand(h:str) -> str\n"
 "\n"
 "Return an expanded GHASH key.\n";
 
@@ -222,7 +222,7 @@ out:
 
 
 static char ghash__doc__[] =
-"_ghash(data:str, y:str, exp_key:str) -> str\n"
+"ghash(data:str, y:str, exp_key:str) -> str\n"
 "\n"
 "Return a GHASH.\n";
 
@@ -284,8 +284,8 @@ out:
  */
 
 static PyMethodDef galois_methods[] = {
-    {"_ghash_expand", ghash_expand_function, METH_VARARGS, ghash_expand__doc__},
-    {"_ghash", ghash_function, METH_VARARGS, ghash__doc__},
+    {"ghash_expand", ghash_expand_function, METH_VARARGS, ghash_expand__doc__},
+    {"ghash", ghash_function, METH_VARARGS, ghash__doc__},
     {NULL, NULL, 0, NULL}   /* end-of-list sentinel value */
 };
 
@@ -293,8 +293,8 @@ static PyMethodDef galois_methods[] = {
 
 static struct PyModuleDef moduledef = {
 	PyModuleDef_HEAD_INIT,
-	"galois",
-	NULL,
+	"_galois",
+	"Arithmetic in Galois Fields",
 	-1,
 	galois_methods,
 	NULL,
@@ -304,7 +304,7 @@ static struct PyModuleDef moduledef = {
 };
 
 PyMODINIT_FUNC
-PyInit_galois(void)
+PyInit__galois(void)
 {
     PyObject *m;
 
@@ -318,12 +318,12 @@ PyInit_galois(void)
 #else
 
 PyMODINIT_FUNC
-initgalois(void)
+init_galois(void)
 {
     PyObject *m;
 
     /* Initialize the module */
-    m = Py_InitModule("galois", galois_methods);
+    m = Py_InitModule("_galois", galois_methods);
     if (m == NULL)
         return;
 }
-- 
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