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<?xml version="1.0" encoding="iso-8859-1"?>
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  <title>paramiko.PKey</title>
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        <a href="paramiko-module.html">Package&nbsp;paramiko</a> ::
        Class&nbsp;PKey
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<!-- =========== 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 />


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