summaryrefslogtreecommitdiff
path: root/pipermail/pycrypto/2011q1/000381.html
blob: 6db12d2b8e82fd7df1e5ccd5f354892fba8515b3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
 <HEAD>
   <TITLE> [pycrypto] Issue with the new random.choice() unit test
   </TITLE>
   <LINK REL="Index" HREF="index.html" >
   <LINK REL="made" HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20Issue%20with%20the%20new%20random.choice%28%29%20unit%20test&In-Reply-To=4D23AC1E.2000509%40amberfisharts.com">
   <META NAME="robots" CONTENT="index,nofollow">
   <META http-equiv="Content-Type" content="text/html; charset=us-ascii">
   <LINK REL="Previous"  HREF="000380.html">
   <LINK REL="Next"  HREF="000382.html">
 </HEAD>
 <BODY BGCOLOR="#ffffff">
   <H1>[pycrypto] Issue with the new random.choice() unit test</H1>
    <B>Thorsten Behrens</B> 
    <A HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20Issue%20with%20the%20new%20random.choice%28%29%20unit%20test&In-Reply-To=4D23AC1E.2000509%40amberfisharts.com"
       TITLE="[pycrypto] Issue with the new random.choice() unit test">sbehrens at gmx.li
       </A><BR>
    <I>Wed Jan  5 07:01:00 CST 2011</I>
    <P><UL>
        <LI>Previous message: <A HREF="000380.html">[pycrypto] Issue with the new random.choice() unit test
</A></li>
        <LI>Next message: <A HREF="000382.html">[pycrypto] Issue with the new random.choice() unit test
</A></li>
         <LI> <B>Messages sorted by:</B> 
              <a href="date.html#381">[ date ]</a>
              <a href="thread.html#381">[ thread ]</a>
              <a href="subject.html#381">[ subject ]</a>
              <a href="author.html#381">[ author ]</a>
         </LI>
       </UL>
    <HR>  
<!--beginarticle-->
<PRE>On 1/4/2011 6:24 PM, Lorenz Quack wrote:
&gt;<i> Well, this problem exist in all your random test although it is indeed
</I>&gt;<i> unlikely that one will hit the others.
</I>True. It also exists in all other random tests we have, in one form or 
another.

&gt;<i> random tests. They all use random.randrange which in turn uses getrandbits.
</I>&gt;<i> So if you want to go for *real* tests those functions should be the focus.
</I>Aye. Real tests for those would be good, given the importance of 
randomness in crypto.
I don't think I'm tackling that anytime soon, though.

&gt;<i>    * You don't need to create the seq randomly or do you? wouldn't range(500) suffice?
</I>It doesn't have to be random. I changed it to range(10000). Gets rid of 
the too-too-likely collision, as well.

&gt;<i>    * I find the way you fixed the shuffle function rather odd (good catch, though)
</I>&gt;<i>      my suggestion would be
</I>&gt;<i>      or even shorter
</I>&gt;<i> 	for i in xrange(len(x)):
</I>&gt;<i> 		x[i] = items.pop(self.randrange(len(items)))
</I>That looks a lot more pythonic. Thanks, I've made that change. I'll hold 
off on yet-another-pull-request though, poor Dwayne. :)

Do you have any ideas on the ailing AllOrNothing.py and random.sample on 
Python 2.1? I haven't dug into those yet beyond
noting that they have issues, exposed by the new unit tests.

Yours
Thorsten

</PRE>














<!--endarticle-->
    <HR>
    <P><UL>
        <!--threads-->
	<LI>Previous message: <A HREF="000380.html">[pycrypto] Issue with the new random.choice() unit test
</A></li>
	<LI>Next message: <A HREF="000382.html">[pycrypto] Issue with the new random.choice() unit test
</A></li>
         <LI> <B>Messages sorted by:</B> 
              <a href="date.html#381">[ date ]</a>
              <a href="thread.html#381">[ thread ]</a>
              <a href="subject.html#381">[ subject ]</a>
              <a href="author.html#381">[ author ]</a>
         </LI>
       </UL>

<hr>
<a href="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">More information about the pycrypto
mailing list</a><br>
</body></html>