summaryrefslogtreecommitdiff
path: root/docs/private/paramiko.PKey-class.html
blob: 3ed3e5f980ec73f3d01045375ff800b30e872a25 (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
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
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
<?xml version="1.0" encoding="iso-8859-1"?>
<!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.PKey</title>
  <link rel="stylesheet" href="epydoc.css" type="text/css"></link>
</head>
<body bgcolor="white" text="black" link="blue" vlink="#204080"
      alink="#204080">

<!-- =========== START OF NAVBAR =========== -->
<table class="navbar" border="0" width="100%" cellpadding="0" bgcolor="#a0c0ff" cellspacing="0">
  <tr valign="center">
    <th class="navbar">&nbsp;&nbsp;&nbsp;<a class="navbar" href="paramiko-module.html">Home</a>&nbsp;&nbsp;&nbsp;</th>
    <th class="navbar">&nbsp;&nbsp;&nbsp;<a class="navbar" href="trees.html">Trees</a>&nbsp;&nbsp;&nbsp;</th>
    <th class="navbar">&nbsp;&nbsp;&nbsp;<a class="navbar" href="indices.html">Index</a>&nbsp;&nbsp;&nbsp;</th>
    <th class="navbar">&nbsp;&nbsp;&nbsp;<a class="navbar" href="help.html">Help</a>&nbsp;&nbsp;&nbsp;</th>
    <th class="navbar" width="100%"></th>
  </tr>
</table>
<table width="100%" cellpadding="0" cellspacing="0">
  <tr valign="top">
    <td width="100%">
      <font size="-1"><b class="breadcrumbs">
        <a href="paramiko-module.html">Package&nbsp;paramiko</a> ::
        Class&nbsp;PKey
      </b></font></br>
    </td>
    <td><table cellpadding="0" cellspacing="0">
      <tr><td align="right"><font size="-2">[<b>show&nbsp;private</b>&nbsp;|&nbsp;hide&nbsp;private]</font></td></tr>
      <tr><td align="right"><font size="-2">[<a href="frames.html"target="_top">frames</a>&nbsp;|&nbsp;<a href="../private/paramiko.PKey-class.html" target="_top">no&nbsp;frames</a>]</font></td></tr>
    </table></td>
</tr></table>

<!-- =========== START OF CLASS DESCRIPTION =========== -->
<h2 class="class">Type PKey</h2>

<pre class="base-tree">
<a href="__builtin__.object-class.html"><code>object</code></a> --+
         |
        <b>PKey</b>
</pre><br />

<dl><dt><b>Known Subclasses:</b></dt>
<dd>
    <a href="paramiko.AgentKey-class.html"><code>AgentKey</code></a>,
    <a href="paramiko.DSSKey-class.html"><code>DSSKey</code></a>,
    <a href="paramiko.RSAKey-class.html"><code>RSAKey</code></a></dd></dl>

<hr/>

Base class for public keys.
<hr/>


<!-- =========== START OF METHOD SUMMARY =========== -->
<table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="summary">
  <th colspan="2">Method Summary</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#__init__" class="summary-sig-name"><code>__init__</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>msg</span>,
          <span class=summary-sig-arg>data</span>)</span></code>
<br />
Create a new instance of this public key type.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        int
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#__cmp__" class="summary-sig-name"><code>__cmp__</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>other</span>)</span></code>
<br />
Compare this key to another.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        str
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#__str__" class="summary-sig-name"><code>__str__</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Return a string of an SSH <a href="paramiko.Message-class.html" 
class="link"><code>Message</code></a> made up of the public part(s) of 
this key.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        str
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#_read_private_key_file" class="summary-sig-name"><code>_read_private_key_file</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>tag</span>,
          <span class=summary-sig-arg>filename</span>,
          <span class=summary-sig-arg>password</span>)</span></code>
<br />
Read an SSH2-format private key file, looking for a string of the type 
<code>&quot;BEGIN xxx PRIVATE KEY&quot;</code> for some <code>xxx</code>, 
base64-decode the text we find, and return it as a string.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#_write_private_key_file" class="summary-sig-name"><code>_write_private_key_file</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>tag</span>,
          <span class=summary-sig-arg>filename</span>,
          <span class=summary-sig-arg>data</span>,
          <span class=summary-sig-arg>password</span>)</span></code>
<br />
Write an SSH2-format private key file in a form that can be read by 
paramiko or openssh.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        bool
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#can_sign" class="summary-sig-name"><code>can_sign</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Return <code>True</code> if this key has the private part necessary 
for signing data.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        <a href="../private/paramiko.PKey-class.html" 
        class="link"><code>PKey</code></a>
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#from_private_key_file" class="summary-sig-name"><code>from_private_key_file</code></a>(<span class=summary-sig-arg>cl</span>,
          <span class=summary-sig-arg>filename</span>,
          <span class=summary-sig-arg>password</span>)</span></code>
<br />
Create a key object by reading a private key file.    <i>(Class method)</i>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        str
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#get_base64" class="summary-sig-name"><code>get_base64</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Return a base64 string containing the public part of this key.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        int
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#get_bits" class="summary-sig-name"><code>get_bits</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Return the number of significant bits in this key.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        str
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#get_fingerprint" class="summary-sig-name"><code>get_fingerprint</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Return an MD5 fingerprint of the public part of this key.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        str
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#get_name" class="summary-sig-name"><code>get_name</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Return the name of this private key implementation.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        <a href="paramiko.Message-class.html" 
        class="link"><code>Message</code></a>
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#sign_ssh_data" class="summary-sig-name"><code>sign_ssh_data</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>randpool</span>,
          <span class=summary-sig-arg>data</span>)</span></code>
<br />
Sign a blob of data with this private key, and return a <a 
href="paramiko.Message-class.html" class="link"><code>Message</code></a> 
representing an SSH signature message.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">        boolean
</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#verify_ssh_sig" class="summary-sig-name"><code>verify_ssh_sig</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>data</span>,
          <span class=summary-sig-arg>msg</span>)</span></code>
<br />
Given a blob of data, and an SSH message representing a signature of 
that data, verify that it was signed with this key.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="../private/paramiko.PKey-class.html#write_private_key_file" class="summary-sig-name"><code>write_private_key_file</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>filename</span>,
          <span class=summary-sig-arg>password</span>)</span></code>
<br />
Write private key contents into a file.</td></tr>
<tr bgcolor="#e8f0f8" class="group">
  <th colspan="2">&nbsp;&nbsp;&nbsp;&nbsp;Inherited from object</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="__builtin__.object-class.html#__delattr__" class="summary-sig-name"><code>__delattr__</code></a>(<span class="summary-sig-vararg">...</span>)</span></code>
<br />
x.__delattr__('name') &lt;==&gt; del x.name</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="__builtin__.object-class.html#__getattribute__" class="summary-sig-name"><code>__getattribute__</code></a>(<span class="summary-sig-vararg">...</span>)</span></code>
<br />
x.__getattribute__('name') &lt;==&gt; x.name</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="__builtin__.object-class.html#__hash__" class="summary-sig-name"><code>__hash__</code></a>(<span class=summary-sig-arg>x</span>)</span></code>
<br />
x.__hash__() &lt;==&gt; hash(x)</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="__builtin__.object-class.html#__new__" class="summary-sig-name"><code>__new__</code></a>(<span class=summary-sig-arg>T</span>,
          <span class=summary-sig-arg>S</span>,
          <span class="summary-sig-vararg">...</span>)</span></code>
<br />
T.__new__(S, ...) -&gt; a new object with type S, a subtype of T</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="__builtin__.object-class.html#__reduce__" class="summary-sig-name"><code>__reduce__</code></a>(<span class="summary-sig-vararg">...</span>)</span></code>
<br />
helper for pickle</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="__builtin__.object-class.html#__reduce_ex__" class="summary-sig-name"><code>__reduce_ex__</code></a>(<span class="summary-sig-vararg">...</span>)</span></code>
<br />
helper for pickle</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="__builtin__.object-class.html#__repr__" class="summary-sig-name"><code>__repr__</code></a>(<span class=summary-sig-arg>x</span>)</span></code>
<br />
x.__repr__() &lt;==&gt; repr(x)</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="__builtin__.object-class.html#__setattr__" class="summary-sig-name"><code>__setattr__</code></a>(<span class="summary-sig-vararg">...</span>)</span></code>
<br />
x.__setattr__('name', value) &lt;==&gt; x.name = value</td></tr>
</table><br />


<!-- =========== START OF CLASS VARIABLE SUMMARY =========== -->
<table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="summary">
  <th colspan="2">Class Variable Summary</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>dict</code></font></td>
<td><b><a href="../private/paramiko.PKey-class.html#_CIPHER_TABLE"><code>_CIPHER_TABLE</code></a></b> = <span title="{'DES-EDE3-CBC': {'blocksize': 8, 'cipher': &lt;module 'Crypto.Cipher.DES3' from '/usr/lib/python2.4/site-packages/Crypto/Cipher/DES3.so'&gt;, 'keysize': 24, 'mode': 2}}"><code>{'DES-EDE3-CBC':&nbsp;{'blocksize':&nbsp;8,&nbsp;'ciphe<span class="variable-ellipsis">...</span></code>
</span></td></tr>
</table><br />


<!-- =========== START OF INSTANCE METHOD DETAILS =========== -->
<table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="details">
  <th colspan="2">Instance Method Details</th></tr>
</table>

<a name="__init__"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">__init__</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>msg</span>=<span class=sig-default>None</span>,
          <span class=sig-arg>data</span>=<span class=sig-default>None</span>)</span>
    <br /><i>(Constructor)</i>
  </h3>
  Create a new instance of this public key type. If <code>msg</code> 
  is given, the key's public part(s) will be filled in from the message. 
  If <code>data</code> is given, the key's public part(s) will be filled 
  in from the string.
  <dl><dt></dt><dd>
    <dl><dt><b>Parameters:</b></dt>
      <dd><code><b>msg</b></code> -
         an optional SSH <a href="paramiko.Message-class.html" 
        class="link"><code>Message</code></a> containing a public key of 
        this type.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=<a href="paramiko.Message-class.html" 
              class="link"><code>Message</code></a>)</i>
      <dd><code><b>data</b></code> -
         an optional string containing a public key of this type
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
    <dl><dt><b>Raises:</b></dt>
      <dd><code><b>SSHException</b></code> -
        if a key cannot be created from the <code>data</code> or 
        <code>msg</code> given, or no key was passed in.
    </dl>
    <dl><dt><b>Overrides:</b></dt>
      <dd><a href="__builtin__.object-class.html#__init__"><code>__builtin__.object.__init__</code></a></dd>
    </dl>
  </dd></dl>
</td></tr></table>

<a name="__cmp__"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">__cmp__</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>other</span>)</span>
    <br /><i>(Comparison operator)</i>
  </h3>
  Compare this key to another. Returns 0 if this key is equivalent to 
  the given key, or non-0 if they are different. Only the public parts of 
  the key are compared, so a public key will compare equal to its 
  corresponding private key.
  <dl><dt></dt><dd>
    <dl><dt><b>Parameters:</b></dt>
      <dd><code><b>other</b></code> -
         key to compare to.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=<a href="../private/paramiko.PKey-class.html" 
              class="link"><code>PKey</code></a>)</i>
      </dd>
    </dl>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        0 if the two keys are equivalent, non-0 otherwise.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=int)</i>
      </dd>
    </dl>
  </dd></dl>
</td></tr></table>

<a name="__str__"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">__str__</span>(<span class=sig-arg>self</span>)</span>
    <br /><i>(Informal representation operator)</i>
  </h3>
  Return a string of an SSH <a href="paramiko.Message-class.html" 
  class="link"><code>Message</code></a> made up of the public part(s) of 
  this key. This string is suitable for passing to <a 
  href="../private/paramiko.PKey-class.html#__init__" 
  class="link"><code>__init__</code></a> to re-create the key object 
  later.
  <dl><dt></dt><dd>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        string representation of an SSH key message.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
    <dl><dt><b>Overrides:</b></dt>
      <dd><a href="__builtin__.object-class.html#__str__"><code>__builtin__.object.__str__</code></a></dd>
    </dl>
  </dd></dl>
</td></tr></table>

<a name="_read_private_key_file"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">_read_private_key_file</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>tag</span>,
          <span class=sig-arg>filename</span>,
          <span class=sig-arg>password</span>=<span class=sig-default>None</span>)</span>
  </h3>
  Read an SSH2-format private key file, looking for a string of the 
  type <code>&quot;BEGIN xxx PRIVATE KEY&quot;</code> for some 
  <code>xxx</code>, base64-decode the text we find, and return it as a 
  string. If the private key is encrypted and <code>password</code> is 
  not <code>None</code>, the given password will be used to decrypt the 
  key (otherwise <a href="paramiko.PasswordRequiredException-class.html" 
  class="link"><code>PasswordRequiredException</code></a> is thrown).
  <dl><dt></dt><dd>
    <dl><dt><b>Parameters:</b></dt>
      <dd><code><b>tag</b></code> -
         <code>&quot;RSA&quot;</code> or <code>&quot;DSA&quot;</code>, 
        the tag used to mark the data block.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      <dd><code><b>filename</b></code> -
         name of the file to read.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      <dd><code><b>password</b></code> -
         an optional password to use to decrypt the key file, if it's 
        encrypted.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        data blob that makes up the private key.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
    <dl><dt><b>Raises:</b></dt>
      <dd><code><b>IOError</b></code> -
        if there was an error reading the file.
      <dd><code><b>PasswordRequiredException</b></code> -
        if the private key file is encrypted, and 
        <code>password</code> is <code>None</code>.
      <dd><code><b>SSHException</b></code> -
        if the key file is invalid.
    </dl>
  </dd></dl>
</td></tr></table>

<a name="_write_private_key_file"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">_write_private_key_file</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>tag</span>,
          <span class=sig-arg>filename</span>,
          <span class=sig-arg>data</span>,
          <span class=sig-arg>password</span>=<span class=sig-default>None</span>)</span>
  </h3>
  Write an SSH2-format private key file in a form that can be read by 
  paramiko or openssh. If no password is given, the key is written in a 
  trivially-encoded format (base64) which is completely insecure. If a 
  password is given, DES-EDE3-CBC is used.
  <dl><dt></dt><dd>
    <dl><dt><b>Parameters:</b></dt>
      <dd><code><b>tag</b></code> -
         <code>&quot;RSA&quot;</code> or <code>&quot;DSA&quot;</code>, 
        the tag used to mark the data block.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      <dd><code><b>filename</b></code> -
         name of the file to write.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      <dd><code><b>data</b></code> -
         data blob that makes up the private key.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      <dd><code><b>password</b></code> -
         an optional password to use to encrypt the file.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
    <dl><dt><b>Raises:</b></dt>
      <dd><code><b>IOError</b></code> -
        if there was an error writing the file.
    </dl>
  </dd></dl>
</td></tr></table>

<a name="can_sign"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">can_sign</span>(<span class=sig-arg>self</span>)</span>
  </h3>
  Return <code>True</code> if this key has the private part necessary 
  for signing data.
  <dl><dt></dt><dd>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        <code>True</code> if this is a private key.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=bool)</i>
      </dd>
    </dl>
  </dd></dl>
</td></tr></table>

<a name="get_base64"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">get_base64</span>(<span class=sig-arg>self</span>)</span>
  </h3>
  Return a base64 string containing the public part of this key. 
  Nothing secret is revealed. This format is compatible with that used to 
  store public key files or recognized host keys.
  <dl><dt></dt><dd>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        a base64 string containing the public part of the key.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
<p><b>Since:</b> fearow
</p>

  </dd></dl>
</td></tr></table>

<a name="get_bits"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">get_bits</span>(<span class=sig-arg>self</span>)</span>
  </h3>
  Return the number of significant bits in this key. This is useful 
  for judging the relative security of a key.
  <dl><dt></dt><dd>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        bits in the key.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=int)</i>
      </dd>
    </dl>
  </dd></dl>
</td></tr></table>

<a name="get_fingerprint"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">get_fingerprint</span>(<span class=sig-arg>self</span>)</span>
  </h3>
  Return an MD5 fingerprint of the public part of this key. Nothing 
  secret is revealed.
  <dl><dt></dt><dd>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        a 16-byte string (binary) of the MD5 fingerprint, in SSH 
        format.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
  </dd></dl>
</td></tr></table>

<a name="get_name"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">get_name</span>(<span class=sig-arg>self</span>)</span>
  </h3>
  Return the name of this private key implementation.
  <dl><dt></dt><dd>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        name of this private key type, in SSH terminology (for 
        example, <code>&quot;ssh-rsa&quot;</code>).
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
  </dd></dl>
</td></tr></table>

<a name="sign_ssh_data"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">sign_ssh_data</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>randpool</span>,
          <span class=sig-arg>data</span>)</span>
  </h3>
  Sign a blob of data with this private key, and return a <a 
  href="paramiko.Message-class.html" 
  class="link"><code>Message</code></a> representing an SSH signature 
  message.
  <dl><dt></dt><dd>
    <dl><dt><b>Parameters:</b></dt>
      <dd><code><b>randpool</b></code> -
         a secure random number generator.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=<code>Crypto.Util.randpool.RandomPool</code>)</i>
      <dd><code><b>data</b></code> -
         the data to sign.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        an SSH signature message.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=<a href="paramiko.Message-class.html" 
        class="link"><code>Message</code></a>)</i>
      </dd>
    </dl>
  </dd></dl>
</td></tr></table>

<a name="verify_ssh_sig"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">verify_ssh_sig</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>data</span>,
          <span class=sig-arg>msg</span>)</span>
  </h3>
  Given a blob of data, and an SSH message representing a signature of 
  that data, verify that it was signed with this key.
  <dl><dt></dt><dd>
    <dl><dt><b>Parameters:</b></dt>
      <dd><code><b>data</b></code> -
         the data that was signed.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      <dd><code><b>msg</b></code> -
         an SSH signature message
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=<a href="paramiko.Message-class.html" 
              class="link"><code>Message</code></a>)</i>
      </dd>
    </dl>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        <code>True</code> if the signature verifies correctly; 
        <code>False</code> otherwise.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=boolean)</i>
      </dd>
    </dl>
  </dd></dl>
</td></tr></table>

<a name="write_private_key_file"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">write_private_key_file</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>filename</span>,
          <span class=sig-arg>password</span>=<span class=sig-default>None</span>)</span>
  </h3>
  Write private key contents into a file. If the password is not 
  <code>None</code>, the key is encrypted before writing.
  <dl><dt></dt><dd>
    <dl><dt><b>Parameters:</b></dt>
      <dd><code><b>filename</b></code> -
         name of the file to write.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      <dd><code><b>password</b></code> -
         an optional password to use to encrypt the key file.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
    <dl><dt><b>Raises:</b></dt>
      <dd><code><b>IOError</b></code> -
        if there was an error writing the file.
      <dd><code><b>SSHException</b></code> -
        if the key is invalid.
    </dl>
<p><b>Since:</b> fearow
</p>

  </dd></dl>
</td></tr></table>
<br />


<!-- =========== START OF CLASS METHOD DETAILS =========== -->
<table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="details">
  <th colspan="2">Class Method Details</th></tr>
</table>

<a name="from_private_key_file"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">from_private_key_file</span>(<span class=sig-arg>cl</span>,
          <span class=sig-arg>filename</span>,
          <span class=sig-arg>password</span>=<span class=sig-default>None</span>)</span>
  </h3>
  Create a key object by reading a private key file. If the private 
  key is encrypted and <code>password</code> is not <code>None</code>, 
  the given password will be used to decrypt the key (otherwise <a 
  href="paramiko.PasswordRequiredException-class.html" 
  class="link"><code>PasswordRequiredException</code></a> is thrown). 
  Through the magic of python, this factory method will exist in all 
  subclasses of PKey (such as <a href="paramiko.RSAKey-class.html" 
  class="link"><code>RSAKey</code></a> or <a 
  href="paramiko.DSSKey-class.html" 
  class="link"><code>DSSKey</code></a>), but is useless on the abstract 
  PKey class.
  <dl><dt></dt><dd>
    <dl><dt><b>Parameters:</b></dt>
      <dd><code><b>filename</b></code> -
         name of the file to read.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      <dd><code><b>password</b></code> -
         an optional password to use to decrypt the key file, if it's 
        encrypted
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=str)</i>
      </dd>
    </dl>
    <dl><dt><b>Returns:</b></dt>
      <dd>
        a new key object based on the given private key.
        <br /><i>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        (type=<a href="../private/paramiko.PKey-class.html" 
        class="link"><code>PKey</code></a>)</i>
      </dd>
    </dl>
    <dl><dt><b>Raises:</b></dt>
      <dd><code><b>IOError</b></code> -
        if there was an error reading the file.
      <dd><code><b>PasswordRequiredException</b></code> -
        if the private key file is encrypted, and 
        <code>password</code> is <code>None</code>.
      <dd><code><b>SSHException</b></code> -
        if the key file is invalid.
    </dl>
<p><b>Since:</b> fearow
</p>

  </dd></dl>
</td></tr></table>
<br />


<!-- =========== START OF CLASS VARIABLE DETAILS =========== -->
<table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="details">
  <th colspan="2">Class Variable Details</th></tr>
</table>
<table width="100%" class="var-details" bgcolor="#e0e0e0"><tr><td>
<a name="_CIPHER_TABLE"></a>
<h3>_CIPHER_TABLE</h3>
<dl>
  <dt></dt>
  <dd>
    <dl>
      <dt><b>Type:</b></dt>
      <dd>
          <code>dict</code>

      </dd>
<span title="{'DES-EDE3-CBC': {'blocksize': 8, 'cipher': &lt;module 'Crypto.Cipher.DES3' from '/usr/lib/python2.4/site-packages/Crypto/Cipher/DES3.so'&gt;, 'keysize': 24, 'mode': 2}}">      <dt><b>Value:</b></dt>
      <dd><table><tr><td>
<pre class="variable">
{'DES-EDE3-CBC': {'blocksize': 8,
                  'cipher': &lt;module 'Crypto.Cipher.DES3' from '/usr/li<span class="variable-linewrap">\</span>
b/python2.4/site-packages/Crypto/Cipher/DES3.so'&gt;,
                  'keysize': 24,
                  'mode': 2}}                                          </pre>
        </td></tr></table></dd>
</span>    </dl>
  </dd>
</dl></td></tr></table>
<br />


<!-- =========== START OF NAVBAR =========== -->
<table class="navbar" border="0" width="100%" cellpadding="0" bgcolor="#a0c0ff" cellspacing="0">
  <tr valign="center">
    <th class="navbar">&nbsp;&nbsp;&nbsp;<a class="navbar" href="paramiko-module.html">Home</a>&nbsp;&nbsp;&nbsp;</th>
    <th class="navbar">&nbsp;&nbsp;&nbsp;<a class="navbar" href="trees.html">Trees</a>&nbsp;&nbsp;&nbsp;</th>
    <th class="navbar">&nbsp;&nbsp;&nbsp;<a class="navbar" href="indices.html">Index</a>&nbsp;&nbsp;&nbsp;</th>
    <th class="navbar">&nbsp;&nbsp;&nbsp;<a class="navbar" href="help.html">Help</a>&nbsp;&nbsp;&nbsp;</th>
    <th class="navbar" width="100%"></th>
  </tr>
</table>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
  <tr>
    <td align="left"><font size="-2">Generated by Epydoc 2.1 on Sun Dec  4 11:16:47 2005</font></td>
    <td align="right"><a href="http://epydoc.sourceforge.net"
                      ><font size="-2">http://epydoc.sf.net</font></a></td>
  </tr>
</table>
</body>
</html>