From bf855e6da326dba0c46f005eedc9f390c6c3b206 Mon Sep 17 00:00:00 2001
From: "Jeremy T. Bouse" <Jeremy.Bouse@UnderGrid.net>
Date: Sun, 25 Oct 2015 22:29:43 -0400
Subject: Imported Upstream version 1.15.3

---
 paramiko/kex_gss.py | 32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)

(limited to 'paramiko/kex_gss.py')

diff --git a/paramiko/kex_gss.py b/paramiko/kex_gss.py
index 4e8380e..69969f8 100644
--- a/paramiko/kex_gss.py
+++ b/paramiko/kex_gss.py
@@ -21,14 +21,15 @@
 
 
 """
-This module provides GSS-API / SSPI Key Exchange as defined in RFC 4462.
+This module provides GSS-API / SSPI Key Exchange as defined in :rfc:`4462`.
 
 .. note:: Credential delegation is not supported in server mode.
 
 .. note::
-    `RFC 4462 Section 2.2 <http://www.ietf.org/rfc/rfc4462.txt>`_ says we are
-    not required to implement GSS-API error messages. Thus, in many methods
-    within this module, if an error occurs an exception will be thrown and the
+    `RFC 4462 Section 2.2
+    <https://tools.ietf.org/html/rfc4462.html#section-2.2>`_ says we are not
+    required to implement GSS-API error messages. Thus, in many methods within
+    this module, if an error occurs an exception will be thrown and the
     connection will be terminated.
 
 .. seealso:: :doc:`/api/ssh_gss`
@@ -36,6 +37,7 @@ This module provides GSS-API / SSPI Key Exchange as defined in RFC 4462.
 .. versionadded:: 1.15
 """
 
+import os
 from hashlib import sha1
 
 from paramiko.common import *
@@ -55,8 +57,8 @@ c_MSG_KEXGSS_GROUPREQ, c_MSG_KEXGSS_GROUP = [byte_chr(c) for c in range(40, 42)]
 
 class KexGSSGroup1(object):
     """
-    GSS-API / SSPI Authenticated Diffie-Hellman Key Exchange
-    as defined in `RFC 4462 Section 2 <http://www.ietf.org/rfc/rfc4462.txt>`_
+    GSS-API / SSPI Authenticated Diffie-Hellman Key Exchange as defined in `RFC
+    4462 Section 2 <https://tools.ietf.org/html/rfc4462.html#section-2>`_
     """
     # draft-ietf-secsh-transport-09.txt, page 17
     P = 0xFFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF
@@ -129,7 +131,7 @@ class KexGSSGroup1(object):
         larger than q (but this is a tiny tiny subset of potential x).
         """
         while 1:
-            x_bytes = self.transport.rng.read(128)
+            x_bytes = os.urandom(128)
             x_bytes = byte_mask(x_bytes[0], 0x7f) + x_bytes[1:]
             if (x_bytes[:8] != self.b7fffffffffffffff) and \
                    (x_bytes[:8] != self.b0000000000000000):
@@ -278,8 +280,9 @@ class KexGSSGroup1(object):
 
 class KexGSSGroup14(KexGSSGroup1):
     """
-    GSS-API / SSPI Authenticated Diffie-Hellman Group14 Key Exchange
-    as defined in `RFC 4462 Section 2 <http://www.ietf.org/rfc/rfc4462.txt>`_
+    GSS-API / SSPI Authenticated Diffie-Hellman Group14 Key Exchange as defined
+    in `RFC 4462 Section 2
+    <https://tools.ietf.org/html/rfc4462.html#section-2>`_
     """
     P = 0x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
     G = 2
@@ -288,8 +291,8 @@ class KexGSSGroup14(KexGSSGroup1):
 
 class KexGSSGex(object):
     """
-    GSS-API / SSPI Authenticated Diffie-Hellman Group Exchange
-    as defined in `RFC 4462 Section 2 <http://www.ietf.org/rfc/rfc4462.txt>`_
+    GSS-API / SSPI Authenticated Diffie-Hellman Group Exchange as defined in
+    `RFC 4462 Section 2 <https://tools.ietf.org/html/rfc4462.html#section-2>`_
     """
     NAME = "gss-gex-sha1-toWM5Slw5Ew8Mqkay+al2g=="
     min_bits = 1024
@@ -364,7 +367,7 @@ class KexGSSGex(object):
             qhbyte <<= 1
             qmask >>= 1
         while True:
-            x_bytes = self.transport.rng.read(byte_count)
+            x_bytes = os.urandom(byte_count)
             x_bytes = byte_mask(x_bytes[0], qmask) + x_bytes[1:]
             x = util.inflate_long(x_bytes, 1)
             if (x > 1) and (x < q):
@@ -590,8 +593,9 @@ class KexGSSGex(object):
 
 class NullHostKey(object):
     """
-    This class represents the Null Host Key for GSS-API Key Exchange
-    as defined in `RFC 4462 Section 5 <http://www.ietf.org/rfc/rfc4462.txt>`_
+    This class represents the Null Host Key for GSS-API Key Exchange as defined
+    in `RFC 4462 Section 5
+    <https://tools.ietf.org/html/rfc4462.html#section-5>`_
     """
     def __init__(self):
         self.key = ""
-- 
cgit v1.2.3