Switched hash functions from PyCrypto to hashlib.

There's a few advantages to this:

1) It's probably fast, OpenSSL, which typically backs hashlib, receives far
   more attention for optimizaitons than PyCrypto.
2) It's the first step to supporting PyPy, where PyCrypto doesn't run.

1 files changed, 3 insertions, 3 deletions

diff --git a/paramiko/kex_group1.py b/paramiko/kex_group1.py
index 3dfb7f18..f792eff0 100644
--- a/paramiko/kex_group1.py
+++ b/paramiko/kex_group1.py
@@ -21,7 +21,7 @@ Standard SSH key exchange ("kex" if you wanna sound cool).  Diffie-Hellman of
 1024 bit key halves, using a known "p" prime and "g" generator.
 """
 
-from Crypto.Hash import SHA
+from hashlib import sha1
 
 from paramiko import util
 from paramiko.common import max_byte, zero_byte
@@ -105,7 +105,7 @@ class KexGroup1(object):
         hm.add_mpint(self.e)
         hm.add_mpint(self.f)
         hm.add_mpint(K)
-        self.transport._set_K_H(K, SHA.new(hm.asbytes()).digest())
+        self.transport._set_K_H(K, sha1(hm.asbytes()).digest())
         self.transport._verify_key(host_key, sig)
         self.transport._activate_outbound()
 
@@ -124,7 +124,7 @@ class KexGroup1(object):
         hm.add_mpint(self.e)
         hm.add_mpint(self.f)
         hm.add_mpint(K)
-        H = SHA.new(hm.asbytes()).digest()
+        H = sha1(hm.asbytes()).digest()
         self.transport._set_K_H(K, H)
         # sign it
         sig = self.transport.get_server_key().sign_ssh_data(self.transport.rng, H)