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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
|
<?xml version="1.0" encoding="ascii"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>paramiko.rng</title>
<link rel="stylesheet" href="epydoc.css" type="text/css" />
<script type="text/javascript" src="epydoc.js"></script>
</head>
<body bgcolor="white" text="black" link="blue" vlink="#204080"
alink="#204080">
<!-- ==================== NAVIGATION BAR ==================== -->
<table class="navbar" border="0" width="100%" cellpadding="0"
bgcolor="#a0c0ff" cellspacing="0">
<tr valign="middle">
<!-- Home link -->
<th> <a
href="paramiko-module.html">Home</a> </th>
<!-- Tree link -->
<th> <a
href="module-tree.html">Trees</a> </th>
<!-- Index link -->
<th> <a
href="identifier-index.html">Indices</a> </th>
<!-- Help link -->
<th> <a
href="help.html">Help</a> </th>
<th class="navbar" width="100%"></th>
</tr>
</table>
<table width="100%" cellpadding="0" cellspacing="0">
<tr valign="top">
<td width="100%">
<span class="breadcrumbs">
<a href="paramiko-module.html">Package paramiko</a> ::
Module rng
</span>
</td>
<td>
<table cellpadding="0" cellspacing="0">
<!-- hide/show private -->
<tr><td align="right"><span class="options"
>[<a href="frames.html" target="_top">frames</a
>] | <a href="paramiko.rng-pysrc.html"
target="_top">no frames</a>]</span></td></tr>
</table>
</td>
</tr>
</table>
<h1 class="epydoc">Source Code for <a href="paramiko.rng-module.html" onclick="show_private();">Module paramiko.rng</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno"> 1</tt> <tt class="py-line"><tt class="py-comment">#!/usr/bin/python</tt> </tt>
<a name="L2"></a><tt class="py-lineno"> 2</tt> <tt class="py-line"><tt class="py-comment"># -*- coding: ascii -*-</tt> </tt>
<a name="L3"></a><tt class="py-lineno"> 3</tt> <tt class="py-line"><tt class="py-comment"># Copyright (C) 2008 Dwayne C. Litzenberger <dlitz@dlitz.net></tt> </tt>
<a name="L4"></a><tt class="py-lineno"> 4</tt> <tt class="py-line"><tt class="py-comment">#</tt> </tt>
<a name="L5"></a><tt class="py-lineno"> 5</tt> <tt class="py-line"><tt class="py-comment"># This file is part of paramiko.</tt> </tt>
<a name="L6"></a><tt class="py-lineno"> 6</tt> <tt class="py-line"><tt class="py-comment">#</tt> </tt>
<a name="L7"></a><tt class="py-lineno"> 7</tt> <tt class="py-line"><tt class="py-comment"># Paramiko is free software; you can redistribute it and/or modify it under the</tt> </tt>
<a name="L8"></a><tt class="py-lineno"> 8</tt> <tt class="py-line"><tt class="py-comment"># terms of the GNU Lesser General Public License as published by the Free</tt> </tt>
<a name="L9"></a><tt class="py-lineno"> 9</tt> <tt class="py-line"><tt class="py-comment"># Software Foundation; either version 2.1 of the License, or (at your option)</tt> </tt>
<a name="L10"></a><tt class="py-lineno"> 10</tt> <tt class="py-line"><tt class="py-comment"># any later version.</tt> </tt>
<a name="L11"></a><tt class="py-lineno"> 11</tt> <tt class="py-line"><tt class="py-comment">#</tt> </tt>
<a name="L12"></a><tt class="py-lineno"> 12</tt> <tt class="py-line"><tt class="py-comment"># Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY</tt> </tt>
<a name="L13"></a><tt class="py-lineno"> 13</tt> <tt class="py-line"><tt class="py-comment"># WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR</tt> </tt>
<a name="L14"></a><tt class="py-lineno"> 14</tt> <tt class="py-line"><tt class="py-comment"># A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more</tt> </tt>
<a name="L15"></a><tt class="py-lineno"> 15</tt> <tt class="py-line"><tt class="py-comment"># details.</tt> </tt>
<a name="L16"></a><tt class="py-lineno"> 16</tt> <tt class="py-line"><tt class="py-comment">#</tt> </tt>
<a name="L17"></a><tt class="py-lineno"> 17</tt> <tt class="py-line"><tt class="py-comment"># You should have received a copy of the GNU Lesser General Public License</tt> </tt>
<a name="L18"></a><tt class="py-lineno"> 18</tt> <tt class="py-line"><tt class="py-comment"># along with Paramiko; if not, write to the Free Software Foundation, Inc.,</tt> </tt>
<a name="L19"></a><tt class="py-lineno"> 19</tt> <tt class="py-line"><tt class="py-comment"># 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.</tt> </tt>
<a name="L20"></a><tt class="py-lineno"> 20</tt> <tt class="py-line"> </tt>
<a name="L21"></a><tt class="py-lineno"> 21</tt> <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">sys</tt> </tt>
<a name="L22"></a><tt class="py-lineno"> 22</tt> <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">threading</tt> </tt>
<a name="L23"></a><tt class="py-lineno"> 23</tt> <tt class="py-line"><tt class="py-keyword">from</tt> <tt class="py-name">Crypto</tt><tt class="py-op">.</tt><tt class="py-name">Util</tt><tt class="py-op">.</tt><tt id="link-0" class="py-name" targets="Variable paramiko.auth_handler.randpool=paramiko.auth_handler-module.html#randpool,Variable paramiko.channel.randpool=paramiko.channel-module.html#randpool,Variable paramiko.client.randpool=paramiko.client-module.html#randpool,Variable paramiko.common.randpool=paramiko.common-module.html#randpool,Variable paramiko.dsskey.randpool=paramiko.dsskey-module.html#randpool,Variable paramiko.hostkeys.randpool=paramiko.hostkeys-module.html#randpool,Variable paramiko.kex_gex.randpool=paramiko.kex_gex-module.html#randpool,Variable paramiko.kex_group1.randpool=paramiko.kex_group1-module.html#randpool,Variable paramiko.packet.randpool=paramiko.packet-module.html#randpool,Variable paramiko.pkey.randpool=paramiko.pkey-module.html#randpool,Variable paramiko.rsakey.randpool=paramiko.rsakey-module.html#randpool,Variable paramiko.server.randpool=paramiko.server-module.html#randpool,Variable paramiko.sftp.randpool=paramiko.sftp-module.html#randpool,Variable paramiko.sftp_attr.randpool=paramiko.sftp_attr-module.html#randpool,Variable paramiko.sftp_client.randpool=paramiko.sftp_client-module.html#randpool,Variable paramiko.sftp_file.randpool=paramiko.sftp_file-module.html#randpool,Variable paramiko.sftp_handle.randpool=paramiko.sftp_handle-module.html#randpool,Variable paramiko.sftp_server.randpool=paramiko.sftp_server-module.html#randpool,Variable paramiko.sftp_si.randpool=paramiko.sftp_si-module.html#randpool,Variable paramiko.transport.randpool=paramiko.transport-module.html#randpool,Variable paramiko.util.randpool=paramiko.util-module.html#randpool"><a title="paramiko.auth_handler.randpool
paramiko.channel.randpool
paramiko.client.randpool
paramiko.common.randpool
paramiko.dsskey.randpool
paramiko.hostkeys.randpool
paramiko.kex_gex.randpool
paramiko.kex_group1.randpool
paramiko.packet.randpool
paramiko.pkey.randpool
paramiko.rsakey.randpool
paramiko.server.randpool
paramiko.sftp.randpool
paramiko.sftp_attr.randpool
paramiko.sftp_client.randpool
paramiko.sftp_file.randpool
paramiko.sftp_handle.randpool
paramiko.sftp_server.randpool
paramiko.sftp_si.randpool
paramiko.transport.randpool
paramiko.util.randpool" class="py-name" href="#" onclick="return doclink('link-0', 'randpool', 'link-0');">randpool</a></tt> <tt class="py-keyword">import</tt> <tt class="py-name">RandomPool</tt> <tt class="py-keyword">as</tt> <tt class="py-name">_RandomPool</tt> </tt>
<a name="L24"></a><tt class="py-lineno"> 24</tt> <tt class="py-line"> </tt>
<a name="L25"></a><tt class="py-lineno"> 25</tt> <tt class="py-line"><tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L26"></a><tt class="py-lineno"> 26</tt> <tt class="py-line"> <tt class="py-keyword">import</tt> <tt class="py-name">platform</tt> </tt>
<a name="L27"></a><tt class="py-lineno"> 27</tt> <tt class="py-line"><tt class="py-keyword">except</tt> <tt class="py-name">ImportError</tt><tt class="py-op">:</tt> </tt>
<a name="L28"></a><tt class="py-lineno"> 28</tt> <tt class="py-line"> <tt class="py-name">platform</tt> <tt class="py-op">=</tt> <tt class="py-name">None</tt> <tt class="py-comment"># Not available using Python 2.2</tt> </tt>
<a name="L29"></a><tt class="py-lineno"> 29</tt> <tt class="py-line"> </tt>
<a name="_strxor"></a><div id="_strxor-def"><a name="L30"></a><tt class="py-lineno"> 30</tt> <a class="py-toggle" href="#" id="_strxor-toggle" onclick="return toggle('_strxor');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="paramiko.rng-module.html#_strxor">_strxor</a><tt class="py-op">(</tt><tt class="py-param">a</tt><tt class="py-op">,</tt> <tt class="py-param">b</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="_strxor-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="_strxor-expanded"><a name="L31"></a><tt class="py-lineno"> 31</tt> <tt class="py-line"> <tt class="py-keyword">assert</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">a</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">b</tt><tt class="py-op">)</tt> </tt>
<a name="L32"></a><tt class="py-lineno"> 32</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-string">""</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-name">map</tt><tt class="py-op">(</tt><tt class="py-keyword">lambda</tt> <tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">y</tt><tt class="py-op">:</tt> <tt class="py-name">chr</tt><tt class="py-op">(</tt><tt class="py-name">ord</tt><tt class="py-op">(</tt><tt class="py-name">x</tt><tt class="py-op">)</tt> <tt class="py-op">^</tt> <tt class="py-name">ord</tt><tt class="py-op">(</tt><tt class="py-name">y</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">a</tt><tt class="py-op">,</tt> <tt class="py-name">b</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
</div><a name="L33"></a><tt class="py-lineno"> 33</tt> <tt class="py-line"> </tt>
<a name="L34"></a><tt class="py-lineno"> 34</tt> <tt class="py-line"><tt class="py-comment">##</tt> </tt>
<a name="L35"></a><tt class="py-lineno"> 35</tt> <tt class="py-line"><tt class="py-comment">## Find a strong random entropy source, depending on the detected platform.</tt> </tt>
<a name="L36"></a><tt class="py-lineno"> 36</tt> <tt class="py-line"><tt class="py-comment">## WARNING TO DEVELOPERS: This will fail on some systems, but do NOT use</tt> </tt>
<a name="L37"></a><tt class="py-lineno"> 37</tt> <tt class="py-line"><tt class="py-comment">## Crypto.Util.randpool.RandomPool as a fall-back. RandomPool will happily run</tt> </tt>
<a name="L38"></a><tt class="py-lineno"> 38</tt> <tt class="py-line"><tt class="py-comment">## with very little entropy, thus _silently_ defeating any security that</tt> </tt>
<a name="L39"></a><tt class="py-lineno"> 39</tt> <tt class="py-line"><tt class="py-comment">## Paramiko attempts to provide. (This is current as of PyCrypto 2.0.1).</tt> </tt>
<a name="L40"></a><tt class="py-lineno"> 40</tt> <tt class="py-line"><tt class="py-comment">## See http://www.lag.net/pipermail/paramiko/2008-January/000599.html</tt> </tt>
<a name="L41"></a><tt class="py-lineno"> 41</tt> <tt class="py-line"><tt class="py-comment">## and http://www.lag.net/pipermail/paramiko/2008-April/000678.html</tt> </tt>
<a name="L42"></a><tt class="py-lineno"> 42</tt> <tt class="py-line"><tt class="py-comment">##</tt> </tt>
<a name="L43"></a><tt class="py-lineno"> 43</tt> <tt class="py-line"> </tt>
<a name="L44"></a><tt class="py-lineno"> 44</tt> <tt class="py-line"><tt class="py-keyword">if</tt> <tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">platform</tt> <tt class="py-keyword">is</tt> <tt class="py-keyword">not</tt> <tt class="py-name">None</tt> <tt class="py-keyword">and</tt> <tt class="py-name">platform</tt><tt class="py-op">.</tt><tt class="py-name">system</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-string">'windows'</tt><tt class="py-op">)</tt> <tt class="py-keyword">or</tt> </tt>
<a name="L45"></a><tt class="py-lineno"> 45</tt> <tt class="py-line"> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">platform</tt> <tt class="py-op">==</tt> <tt class="py-string">'win32'</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L46"></a><tt class="py-lineno"> 46</tt> <tt class="py-line"> <tt class="py-comment"># MS Windows</tt> </tt>
<a name="L47"></a><tt class="py-lineno"> 47</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt id="link-1" class="py-name" targets="Package paramiko=paramiko-module.html"><a title="paramiko" class="py-name" href="#" onclick="return doclink('link-1', 'paramiko', 'link-1');">paramiko</a></tt> <tt class="py-keyword">import</tt> <tt id="link-2" class="py-name" targets="Module paramiko.rng_win32=paramiko.rng_win32-module.html"><a title="paramiko.rng_win32" class="py-name" href="#" onclick="return doclink('link-2', 'rng_win32', 'link-2');">rng_win32</a></tt> </tt>
<a name="L48"></a><tt class="py-lineno"> 48</tt> <tt class="py-line"> <tt id="link-3" class="py-name" targets="Variable paramiko.rng.rng_device=paramiko.rng-module.html#rng_device"><a title="paramiko.rng.rng_device" class="py-name" href="#" onclick="return doclink('link-3', 'rng_device', 'link-3');">rng_device</a></tt> <tt class="py-op">=</tt> <tt id="link-4" class="py-name"><a title="paramiko.rng_win32" class="py-name" href="#" onclick="return doclink('link-4', 'rng_win32', 'link-2');">rng_win32</a></tt><tt class="py-op">.</tt><tt id="link-5" class="py-name" targets="Function paramiko.rng_posix.open_rng_device()=paramiko.rng_posix-module.html#open_rng_device,Function paramiko.rng_win32.open_rng_device()=paramiko.rng_win32-module.html#open_rng_device"><a title="paramiko.rng_posix.open_rng_device
paramiko.rng_win32.open_rng_device" class="py-name" href="#" onclick="return doclink('link-5', 'open_rng_device', 'link-5');">open_rng_device</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L49"></a><tt class="py-lineno"> 49</tt> <tt class="py-line"><tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L50"></a><tt class="py-lineno"> 50</tt> <tt class="py-line"> <tt class="py-comment"># Assume POSIX (any system where /dev/urandom exists)</tt> </tt>
<a name="L51"></a><tt class="py-lineno"> 51</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt id="link-6" class="py-name"><a title="paramiko" class="py-name" href="#" onclick="return doclink('link-6', 'paramiko', 'link-1');">paramiko</a></tt> <tt class="py-keyword">import</tt> <tt id="link-7" class="py-name" targets="Module paramiko.rng_posix=paramiko.rng_posix-module.html"><a title="paramiko.rng_posix" class="py-name" href="#" onclick="return doclink('link-7', 'rng_posix', 'link-7');">rng_posix</a></tt> </tt>
<a name="L52"></a><tt class="py-lineno"> 52</tt> <tt class="py-line"> <tt id="link-8" class="py-name"><a title="paramiko.rng.rng_device" class="py-name" href="#" onclick="return doclink('link-8', 'rng_device', 'link-3');">rng_device</a></tt> <tt class="py-op">=</tt> <tt id="link-9" class="py-name"><a title="paramiko.rng_posix" class="py-name" href="#" onclick="return doclink('link-9', 'rng_posix', 'link-7');">rng_posix</a></tt><tt class="py-op">.</tt><tt id="link-10" class="py-name"><a title="paramiko.rng_posix.open_rng_device
paramiko.rng_win32.open_rng_device" class="py-name" href="#" onclick="return doclink('link-10', 'open_rng_device', 'link-5');">open_rng_device</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L53"></a><tt class="py-lineno"> 53</tt> <tt class="py-line"> </tt>
<a name="L54"></a><tt class="py-lineno"> 54</tt> <tt class="py-line"> </tt>
<a name="StrongLockingRandomPool"></a><div id="StrongLockingRandomPool-def"><a name="L55"></a><tt class="py-lineno"> 55</tt> <a class="py-toggle" href="#" id="StrongLockingRandomPool-toggle" onclick="return toggle('StrongLockingRandomPool');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="paramiko.rng.StrongLockingRandomPool-class.html">StrongLockingRandomPool</a><tt class="py-op">(</tt><tt class="py-base-class">object</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="StrongLockingRandomPool-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="StrongLockingRandomPool-expanded"><a name="L56"></a><tt class="py-lineno"> 56</tt> <tt class="py-line"> <tt class="py-docstring">"""Wrapper around RandomPool guaranteeing strong random numbers.</tt> </tt>
<a name="L57"></a><tt class="py-lineno"> 57</tt> <tt class="py-line"><tt class="py-docstring"> </tt> </tt>
<a name="L58"></a><tt class="py-lineno"> 58</tt> <tt class="py-line"><tt class="py-docstring"> Crypto.Util.randpool.RandomPool will silently operate even if it is seeded</tt> </tt>
<a name="L59"></a><tt class="py-lineno"> 59</tt> <tt class="py-line"><tt class="py-docstring"> with little or no entropy, and it provides no prediction resistance if its</tt> </tt>
<a name="L60"></a><tt class="py-lineno"> 60</tt> <tt class="py-line"><tt class="py-docstring"> state is ever compromised throughout its runtime. It is also not thread-safe.</tt> </tt>
<a name="L61"></a><tt class="py-lineno"> 61</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L62"></a><tt class="py-lineno"> 62</tt> <tt class="py-line"><tt class="py-docstring"> This wrapper augments RandomPool by XORing its output with random bits from</tt> </tt>
<a name="L63"></a><tt class="py-lineno"> 63</tt> <tt class="py-line"><tt class="py-docstring"> the operating system, and by controlling access to the underlying</tt> </tt>
<a name="L64"></a><tt class="py-lineno"> 64</tt> <tt class="py-line"><tt class="py-docstring"> RandomPool using an exclusive lock.</tt> </tt>
<a name="L65"></a><tt class="py-lineno"> 65</tt> <tt class="py-line"><tt class="py-docstring"> """</tt> </tt>
<a name="L66"></a><tt class="py-lineno"> 66</tt> <tt class="py-line"> </tt>
<a name="StrongLockingRandomPool.__init__"></a><div id="StrongLockingRandomPool.__init__-def"><a name="L67"></a><tt class="py-lineno"> 67</tt> <a class="py-toggle" href="#" id="StrongLockingRandomPool.__init__-toggle" onclick="return toggle('StrongLockingRandomPool.__init__');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="paramiko.rng.StrongLockingRandomPool-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">instance</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="StrongLockingRandomPool.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="StrongLockingRandomPool.__init__-expanded"><a name="L68"></a><tt class="py-lineno"> 68</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">instance</tt> <tt class="py-keyword">is</tt> <tt class="py-name">None</tt><tt class="py-op">:</tt> </tt>
<a name="L69"></a><tt class="py-lineno"> 69</tt> <tt class="py-line"> <tt class="py-name">instance</tt> <tt class="py-op">=</tt> <tt class="py-name">_RandomPool</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L70"></a><tt class="py-lineno"> 70</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-11" class="py-name"><a title="paramiko.auth_handler.randpool
paramiko.channel.randpool
paramiko.client.randpool
paramiko.common.randpool
paramiko.dsskey.randpool
paramiko.hostkeys.randpool
paramiko.kex_gex.randpool
paramiko.kex_group1.randpool
paramiko.packet.randpool
paramiko.pkey.randpool
paramiko.rsakey.randpool
paramiko.server.randpool
paramiko.sftp.randpool
paramiko.sftp_attr.randpool
paramiko.sftp_client.randpool
paramiko.sftp_file.randpool
paramiko.sftp_handle.randpool
paramiko.sftp_server.randpool
paramiko.sftp_si.randpool
paramiko.transport.randpool
paramiko.util.randpool" class="py-name" href="#" onclick="return doclink('link-11', 'randpool', 'link-0');">randpool</a></tt> <tt class="py-op">=</tt> <tt class="py-name">instance</tt> </tt>
<a name="L71"></a><tt class="py-lineno"> 71</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">randpool_lock</tt> <tt class="py-op">=</tt> <tt class="py-name">threading</tt><tt class="py-op">.</tt><tt class="py-name">Lock</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L72"></a><tt class="py-lineno"> 72</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entropy</tt> <tt class="py-op">=</tt> <tt id="link-12" class="py-name"><a title="paramiko.rng.rng_device" class="py-name" href="#" onclick="return doclink('link-12', 'rng_device', 'link-3');">rng_device</a></tt> </tt>
<a name="L73"></a><tt class="py-lineno"> 73</tt> <tt class="py-line"> </tt>
<a name="L74"></a><tt class="py-lineno"> 74</tt> <tt class="py-line"> <tt class="py-comment"># Stir 256 bits of entropy from the RNG device into the RandomPool.</tt> </tt>
<a name="L75"></a><tt class="py-lineno"> 75</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-13" class="py-name"><a title="paramiko.auth_handler.randpool
paramiko.channel.randpool
paramiko.client.randpool
paramiko.common.randpool
paramiko.dsskey.randpool
paramiko.hostkeys.randpool
paramiko.kex_gex.randpool
paramiko.kex_group1.randpool
paramiko.packet.randpool
paramiko.pkey.randpool
paramiko.rsakey.randpool
paramiko.server.randpool
paramiko.sftp.randpool
paramiko.sftp_attr.randpool
paramiko.sftp_client.randpool
paramiko.sftp_file.randpool
paramiko.sftp_handle.randpool
paramiko.sftp_server.randpool
paramiko.sftp_si.randpool
paramiko.transport.randpool
paramiko.util.randpool" class="py-name" href="#" onclick="return doclink('link-13', 'randpool', 'link-0');">randpool</a></tt><tt class="py-op">.</tt><tt id="link-14" class="py-name" targets="Method paramiko.rng.StrongLockingRandomPool.stir()=paramiko.rng.StrongLockingRandomPool-class.html#stir"><a title="paramiko.rng.StrongLockingRandomPool.stir" class="py-name" href="#" onclick="return doclink('link-14', 'stir', 'link-14');">stir</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entropy</tt><tt class="py-op">.</tt><tt id="link-15" class="py-name" targets="Method paramiko.BufferedFile.read()=paramiko.BufferedFile-class.html#read,Method paramiko.SFTPHandle.read()=paramiko.SFTPHandle-class.html#read,Method paramiko.buffered_pipe.BufferedPipe.read()=paramiko.buffered_pipe.BufferedPipe-class.html#read"><a title="paramiko.BufferedFile.read
paramiko.SFTPHandle.read
paramiko.buffered_pipe.BufferedPipe.read" class="py-name" href="#" onclick="return doclink('link-15', 'read', 'link-15');">read</a></tt><tt class="py-op">(</tt><tt class="py-number">32</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L76"></a><tt class="py-lineno"> 76</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entropy</tt><tt class="py-op">.</tt><tt id="link-16" class="py-name" targets="Method paramiko.rng.StrongLockingRandomPool.randomize()=paramiko.rng.StrongLockingRandomPool-class.html#randomize"><a title="paramiko.rng.StrongLockingRandomPool.randomize" class="py-name" href="#" onclick="return doclink('link-16', 'randomize', 'link-16');">randomize</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L77"></a><tt class="py-lineno"> 77</tt> <tt class="py-line"> </tt>
<a name="StrongLockingRandomPool.stir"></a><div id="StrongLockingRandomPool.stir-def"><a name="L78"></a><tt class="py-lineno"> 78</tt> <a class="py-toggle" href="#" id="StrongLockingRandomPool.stir-toggle" onclick="return toggle('StrongLockingRandomPool.stir');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="paramiko.rng.StrongLockingRandomPool-class.html#stir">stir</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">s</tt><tt class="py-op">=</tt><tt class="py-string">''</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="StrongLockingRandomPool.stir-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="StrongLockingRandomPool.stir-expanded"><a name="L79"></a><tt class="py-lineno"> 79</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">randpool_lock</tt><tt class="py-op">.</tt><tt class="py-name">acquire</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L80"></a><tt class="py-lineno"> 80</tt> <tt class="py-line"> <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L81"></a><tt class="py-lineno"> 81</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-17" class="py-name"><a title="paramiko.auth_handler.randpool
paramiko.channel.randpool
paramiko.client.randpool
paramiko.common.randpool
paramiko.dsskey.randpool
paramiko.hostkeys.randpool
paramiko.kex_gex.randpool
paramiko.kex_group1.randpool
paramiko.packet.randpool
paramiko.pkey.randpool
paramiko.rsakey.randpool
paramiko.server.randpool
paramiko.sftp.randpool
paramiko.sftp_attr.randpool
paramiko.sftp_client.randpool
paramiko.sftp_file.randpool
paramiko.sftp_handle.randpool
paramiko.sftp_server.randpool
paramiko.sftp_si.randpool
paramiko.transport.randpool
paramiko.util.randpool" class="py-name" href="#" onclick="return doclink('link-17', 'randpool', 'link-0');">randpool</a></tt><tt class="py-op">.</tt><tt id="link-18" class="py-name"><a title="paramiko.rng.StrongLockingRandomPool.stir" class="py-name" href="#" onclick="return doclink('link-18', 'stir', 'link-14');">stir</a></tt><tt class="py-op">(</tt><tt class="py-name">s</tt><tt class="py-op">)</tt> </tt>
<a name="L82"></a><tt class="py-lineno"> 82</tt> <tt class="py-line"> <tt class="py-keyword">finally</tt><tt class="py-op">:</tt> </tt>
<a name="L83"></a><tt class="py-lineno"> 83</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">randpool_lock</tt><tt class="py-op">.</tt><tt class="py-name">release</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L84"></a><tt class="py-lineno"> 84</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entropy</tt><tt class="py-op">.</tt><tt id="link-19" class="py-name"><a title="paramiko.rng.StrongLockingRandomPool.randomize" class="py-name" href="#" onclick="return doclink('link-19', 'randomize', 'link-16');">randomize</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L85"></a><tt class="py-lineno"> 85</tt> <tt class="py-line"> </tt>
<a name="StrongLockingRandomPool.randomize"></a><div id="StrongLockingRandomPool.randomize-def"><a name="L86"></a><tt class="py-lineno"> 86</tt> <a class="py-toggle" href="#" id="StrongLockingRandomPool.randomize-toggle" onclick="return toggle('StrongLockingRandomPool.randomize');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="paramiko.rng.StrongLockingRandomPool-class.html#randomize">randomize</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">N</tt><tt class="py-op">=</tt><tt class="py-number">0</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="StrongLockingRandomPool.randomize-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="StrongLockingRandomPool.randomize-expanded"><a name="L87"></a><tt class="py-lineno"> 87</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">randpool_lock</tt><tt class="py-op">.</tt><tt class="py-name">acquire</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L88"></a><tt class="py-lineno"> 88</tt> <tt class="py-line"> <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L89"></a><tt class="py-lineno"> 89</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-20" class="py-name"><a title="paramiko.auth_handler.randpool
paramiko.channel.randpool
paramiko.client.randpool
paramiko.common.randpool
paramiko.dsskey.randpool
paramiko.hostkeys.randpool
paramiko.kex_gex.randpool
paramiko.kex_group1.randpool
paramiko.packet.randpool
paramiko.pkey.randpool
paramiko.rsakey.randpool
paramiko.server.randpool
paramiko.sftp.randpool
paramiko.sftp_attr.randpool
paramiko.sftp_client.randpool
paramiko.sftp_file.randpool
paramiko.sftp_handle.randpool
paramiko.sftp_server.randpool
paramiko.sftp_si.randpool
paramiko.transport.randpool
paramiko.util.randpool" class="py-name" href="#" onclick="return doclink('link-20', 'randpool', 'link-0');">randpool</a></tt><tt class="py-op">.</tt><tt id="link-21" class="py-name"><a title="paramiko.rng.StrongLockingRandomPool.randomize" class="py-name" href="#" onclick="return doclink('link-21', 'randomize', 'link-16');">randomize</a></tt><tt class="py-op">(</tt><tt class="py-name">N</tt><tt class="py-op">)</tt> </tt>
<a name="L90"></a><tt class="py-lineno"> 90</tt> <tt class="py-line"> <tt class="py-keyword">finally</tt><tt class="py-op">:</tt> </tt>
<a name="L91"></a><tt class="py-lineno"> 91</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">randpool_lock</tt><tt class="py-op">.</tt><tt class="py-name">release</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L92"></a><tt class="py-lineno"> 92</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entropy</tt><tt class="py-op">.</tt><tt id="link-22" class="py-name"><a title="paramiko.rng.StrongLockingRandomPool.randomize" class="py-name" href="#" onclick="return doclink('link-22', 'randomize', 'link-16');">randomize</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L93"></a><tt class="py-lineno"> 93</tt> <tt class="py-line"> </tt>
<a name="StrongLockingRandomPool.add_event"></a><div id="StrongLockingRandomPool.add_event-def"><a name="L94"></a><tt class="py-lineno"> 94</tt> <a class="py-toggle" href="#" id="StrongLockingRandomPool.add_event-toggle" onclick="return toggle('StrongLockingRandomPool.add_event');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="paramiko.rng.StrongLockingRandomPool-class.html#add_event">add_event</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">s</tt><tt class="py-op">=</tt><tt class="py-string">''</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="StrongLockingRandomPool.add_event-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="StrongLockingRandomPool.add_event-expanded"><a name="L95"></a><tt class="py-lineno"> 95</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">randpool_lock</tt><tt class="py-op">.</tt><tt class="py-name">acquire</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L96"></a><tt class="py-lineno"> 96</tt> <tt class="py-line"> <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L97"></a><tt class="py-lineno"> 97</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-23" class="py-name"><a title="paramiko.auth_handler.randpool
paramiko.channel.randpool
paramiko.client.randpool
paramiko.common.randpool
paramiko.dsskey.randpool
paramiko.hostkeys.randpool
paramiko.kex_gex.randpool
paramiko.kex_group1.randpool
paramiko.packet.randpool
paramiko.pkey.randpool
paramiko.rsakey.randpool
paramiko.server.randpool
paramiko.sftp.randpool
paramiko.sftp_attr.randpool
paramiko.sftp_client.randpool
paramiko.sftp_file.randpool
paramiko.sftp_handle.randpool
paramiko.sftp_server.randpool
paramiko.sftp_si.randpool
paramiko.transport.randpool
paramiko.util.randpool" class="py-name" href="#" onclick="return doclink('link-23', 'randpool', 'link-0');">randpool</a></tt><tt class="py-op">.</tt><tt id="link-24" class="py-name" targets="Method paramiko.rng.StrongLockingRandomPool.add_event()=paramiko.rng.StrongLockingRandomPool-class.html#add_event"><a title="paramiko.rng.StrongLockingRandomPool.add_event" class="py-name" href="#" onclick="return doclink('link-24', 'add_event', 'link-24');">add_event</a></tt><tt class="py-op">(</tt><tt class="py-name">s</tt><tt class="py-op">)</tt> </tt>
<a name="L98"></a><tt class="py-lineno"> 98</tt> <tt class="py-line"> <tt class="py-keyword">finally</tt><tt class="py-op">:</tt> </tt>
<a name="L99"></a><tt class="py-lineno"> 99</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">randpool_lock</tt><tt class="py-op">.</tt><tt class="py-name">release</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L100"></a><tt class="py-lineno">100</tt> <tt class="py-line"> </tt>
<a name="StrongLockingRandomPool.get_bytes"></a><div id="StrongLockingRandomPool.get_bytes-def"><a name="L101"></a><tt class="py-lineno">101</tt> <a class="py-toggle" href="#" id="StrongLockingRandomPool.get_bytes-toggle" onclick="return toggle('StrongLockingRandomPool.get_bytes');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="paramiko.rng.StrongLockingRandomPool-class.html#get_bytes">get_bytes</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">N</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="StrongLockingRandomPool.get_bytes-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="StrongLockingRandomPool.get_bytes-expanded"><a name="L102"></a><tt class="py-lineno">102</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">randpool_lock</tt><tt class="py-op">.</tt><tt class="py-name">acquire</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L103"></a><tt class="py-lineno">103</tt> <tt class="py-line"> <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L104"></a><tt class="py-lineno">104</tt> <tt class="py-line"> <tt class="py-name">randpool_data</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-25" class="py-name"><a title="paramiko.auth_handler.randpool
paramiko.channel.randpool
paramiko.client.randpool
paramiko.common.randpool
paramiko.dsskey.randpool
paramiko.hostkeys.randpool
paramiko.kex_gex.randpool
paramiko.kex_group1.randpool
paramiko.packet.randpool
paramiko.pkey.randpool
paramiko.rsakey.randpool
paramiko.server.randpool
paramiko.sftp.randpool
paramiko.sftp_attr.randpool
paramiko.sftp_client.randpool
paramiko.sftp_file.randpool
paramiko.sftp_handle.randpool
paramiko.sftp_server.randpool
paramiko.sftp_si.randpool
paramiko.transport.randpool
paramiko.util.randpool" class="py-name" href="#" onclick="return doclink('link-25', 'randpool', 'link-0');">randpool</a></tt><tt class="py-op">.</tt><tt id="link-26" class="py-name" targets="Method paramiko.Message.get_bytes()=paramiko.Message-class.html#get_bytes,Method paramiko.rng.StrongLockingRandomPool.get_bytes()=paramiko.rng.StrongLockingRandomPool-class.html#get_bytes"><a title="paramiko.Message.get_bytes
paramiko.rng.StrongLockingRandomPool.get_bytes" class="py-name" href="#" onclick="return doclink('link-26', 'get_bytes', 'link-26');">get_bytes</a></tt><tt class="py-op">(</tt><tt class="py-name">N</tt><tt class="py-op">)</tt> </tt>
<a name="L105"></a><tt class="py-lineno">105</tt> <tt class="py-line"> <tt class="py-keyword">finally</tt><tt class="py-op">:</tt> </tt>
<a name="L106"></a><tt class="py-lineno">106</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">randpool_lock</tt><tt class="py-op">.</tt><tt class="py-name">release</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L107"></a><tt class="py-lineno">107</tt> <tt class="py-line"> <tt class="py-name">entropy_data</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entropy</tt><tt class="py-op">.</tt><tt id="link-27" class="py-name"><a title="paramiko.BufferedFile.read
paramiko.SFTPHandle.read
paramiko.buffered_pipe.BufferedPipe.read" class="py-name" href="#" onclick="return doclink('link-27', 'read', 'link-15');">read</a></tt><tt class="py-op">(</tt><tt class="py-name">N</tt><tt class="py-op">)</tt> </tt>
<a name="L108"></a><tt class="py-lineno">108</tt> <tt class="py-line"> <tt class="py-name">result</tt> <tt class="py-op">=</tt> <tt class="py-name">_strxor</tt><tt class="py-op">(</tt><tt class="py-name">randpool_data</tt><tt class="py-op">,</tt> <tt class="py-name">entropy_data</tt><tt class="py-op">)</tt> </tt>
<a name="L109"></a><tt class="py-lineno">109</tt> <tt class="py-line"> <tt class="py-keyword">assert</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">randpool_data</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-name">N</tt> <tt class="py-keyword">and</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">entropy_data</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-name">N</tt> <tt class="py-keyword">and</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">result</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-name">N</tt> </tt>
<a name="L110"></a><tt class="py-lineno">110</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">result</tt> </tt>
</div></div><a name="L111"></a><tt class="py-lineno">111</tt> <tt class="py-line"> </tt>
<a name="L112"></a><tt class="py-lineno">112</tt> <tt class="py-line"><tt class="py-comment"># vim:set ts=4 sw=4 sts=4 expandtab:</tt> </tt>
<a name="L113"></a><tt class="py-lineno">113</tt> <tt class="py-line"> </tt><script type="text/javascript">
<!--
expandto(location.href);
// -->
</script>
</pre>
<br />
<!-- ==================== NAVIGATION BAR ==================== -->
<table class="navbar" border="0" width="100%" cellpadding="0"
bgcolor="#a0c0ff" cellspacing="0">
<tr valign="middle">
<!-- Home link -->
<th> <a
href="paramiko-module.html">Home</a> </th>
<!-- Tree link -->
<th> <a
href="module-tree.html">Trees</a> </th>
<!-- Index link -->
<th> <a
href="identifier-index.html">Indices</a> </th>
<!-- Help link -->
<th> <a
href="help.html">Help</a> </th>
<th class="navbar" width="100%"></th>
</tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" width="100%%">
<tr>
<td align="left" class="footer">
Generated by Epydoc 3.0.1 on Sun Nov 1 22:14:17 2009
</td>
<td align="right" class="footer">
<a target="mainFrame" href="http://epydoc.sourceforge.net"
>http://epydoc.sourceforge.net</a>
</td>
</tr>
</table>
<script type="text/javascript">
<!--
// Private objects are initially displayed (because if
// javascript is turned off then we want them to be
// visible); but by default, we want to hide them. So hide
// them unless we have a cookie that says to show them.
checkCookie();
// -->
</script>
</body>
</html>
|