499 строки
16 KiB
HTML
499 строки
16 KiB
HTML
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<a href="nss-module.html">Package nss</a> ::
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<a href="nss.nss-module.html">Module nss</a> ::
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Class PK11Context
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<!-- hide/show private -->
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<!-- ==================== TYPE DESCRIPTION ==================== -->
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<h1 class="epydoc">type PK11Context</h1><p class="nomargin-top"></p>
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<pre class="base-tree">
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object --+
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<strong class="uidshort">PK11Context</strong>
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</pre>
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<hr />
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<!-- ==================== INSTANCE METHODS ==================== -->
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<span class="summary-type"> </span>
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</td><td class="summary">
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<td><span class="summary-sig"><a href="nss.nss.PK11Context-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">...</span>)</span><br />
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x.__init__(...) initializes x; see help(type(x)) for signature</td>
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<td width="15%" align="right" valign="top" class="summary">
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<span class="summary-type">a new object with type S, a subtype of T</span>
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</td><td class="summary">
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<td><span class="summary-sig"><a href="nss.nss.PK11Context-class.html#__new__" class="summary-sig-name">__new__</a>(<span class="summary-sig-arg">T</span>,
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<span class="summary-sig-arg">S</span>,
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<span class="summary-sig-arg">...</span>)</span></td>
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<span class="summary-type">data</span>
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</td><td class="summary">
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<tr>
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<td><span class="summary-sig"><a href="nss.nss.PK11Context-class.html#cipher_op" class="summary-sig-name">cipher_op</a>(<span class="summary-sig-arg">data</span>)</span><br />
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Execute a digest/signature operation.</td>
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<td width="15%" align="right" valign="top" class="summary">
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<span class="summary-type">PK11Context</span>
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</td><td class="summary">
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<tr>
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<td><span class="summary-sig"><a href="nss.nss.PK11Context-class.html#clone_context" class="summary-sig-name">clone_context</a>(<span class="summary-sig-arg">context</span>)</span><br />
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Create a new PK11Context which is clone of the supplied context.</td>
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<span class="summary-type"> </span>
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</td><td class="summary">
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<tr>
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<td><span class="summary-sig"><a name="digest_begin"></a><span class="summary-sig-name">digest_begin</span>()</span><br />
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Start a new digesting or Mac'ing operation on this context.</td>
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<td align="right" valign="top">
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<span class="summary-type">data</span>
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</td><td class="summary">
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td><span class="summary-sig"><a href="nss.nss.PK11Context-class.html#digest_final" class="summary-sig-name">digest_final</a>()</span><br />
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Completes the multi-part cryptographic operation in progress
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on this context and returns any final data which may have been
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pending in the context (i.e.</td>
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<td align="right" valign="top">
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</td>
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<td width="15%" align="right" valign="top" class="summary">
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<span class="summary-type"> </span>
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</td><td class="summary">
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td><span class="summary-sig"><a href="nss.nss.PK11Context-class.html#digest_key" class="summary-sig-name">digest_key</a>(<span class="summary-sig-arg">sym_key</span>)</span><br />
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Continues a multiple-part message-digesting operation by digesting the
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value of a secret key.</td>
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<td align="right" valign="top">
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</td>
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<td width="15%" align="right" valign="top" class="summary">
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<span class="summary-type"> </span>
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</td><td class="summary">
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td><span class="summary-sig"><a href="nss.nss.PK11Context-class.html#digest_op" class="summary-sig-name">digest_op</a>(<span class="summary-sig-arg">data</span>)</span><br />
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Execute a digest/signature operation.</td>
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<td align="right" valign="top">
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</td>
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<tr>
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<td width="15%" align="right" valign="top" class="summary">
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<span class="summary-type"> </span>
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</td><td class="summary">
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td><span class="summary-sig"><a href="nss.nss.PK11Context-class.html#finalize" class="summary-sig-name">finalize</a>()</span><br />
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Clean up cipher operation so that any pending multi-part
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operations have been flushed.</td>
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<td align="right" valign="top">
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</td>
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</td>
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</table>
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<!-- ==================== METHOD DETAILS ==================== -->
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<a name="section-MethodDetails"></a>
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<table class="details" border="1" cellpadding="3"
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cellspacing="0" width="100%" bgcolor="white">
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<td align="left"><span class="table-header">Method Details</span></td>
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<td align="right" valign="top"
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><span class="options">[<a href="#section-MethodDetails"
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class="privatelink" onclick="toggle_private();"
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>hide private</a>]</span></td>
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<a name="__init__"></a>
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<div>
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<tr><td>
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<tr valign="top"><td>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">...</span>)</span>
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<br /><em class="fname">(Constructor)</em>
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</h3>
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</td><td align="right" valign="top"
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>
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</td>
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</tr></table>
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x.__init__(...) initializes x; see help(type(x)) for signature
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<dl class="fields">
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<dt>Overrides:
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object.__init__
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</dt>
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</dl>
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</td></tr></table>
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</div>
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<a name="__new__"></a>
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<div>
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<table class="details" border="1" cellpadding="3"
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cellspacing="0" width="100%" bgcolor="white">
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<tr><td>
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr valign="top"><td>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__new__</span>(<span class="sig-arg">T</span>,
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<span class="sig-arg">S</span>,
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<span class="sig-arg">...</span>)</span>
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</h3>
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</td><td align="right" valign="top"
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>
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</td>
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</tr></table>
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<dl class="fields">
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<dt>Returns: a new object with type S, a subtype of T</dt>
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<dt>Overrides:
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object.__new__
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</dt>
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</dl>
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</td></tr></table>
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</div>
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<a name="cipher_op"></a>
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<div>
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<table class="details" border="1" cellpadding="3"
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cellspacing="0" width="100%" bgcolor="white">
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<tr><td>
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr valign="top"><td>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">cipher_op</span>(<span class="sig-arg">data</span>)</span>
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</h3>
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</td><td align="right" valign="top"
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>
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</td>
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</tr></table>
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Execute a digest/signature operation.
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<dl class="fields">
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<dt>Parameters:</dt>
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<dd><ul class="nomargin-top">
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<li><strong class="pname"><code>data</code></strong> (any read buffer compatible object (e.g. buffer or string)) - raw data to compute digest from</li>
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</ul></dd>
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<dt>Returns: data</dt>
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</dl>
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</td></tr></table>
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</div>
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<a name="clone_context"></a>
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<div>
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<table class="details" border="1" cellpadding="3"
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cellspacing="0" width="100%" bgcolor="white">
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<tr><td>
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr valign="top"><td>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">clone_context</span>(<span class="sig-arg">context</span>)</span>
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</h3>
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</td><td align="right" valign="top"
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>
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</td>
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</tr></table>
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Create a new PK11Context which is clone of the supplied context.
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<dl class="fields">
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<dt>Parameters:</dt>
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<dd><ul class="nomargin-top">
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<li><strong class="pname"><code>context</code></strong> (PK11Context object) - The PK11Context to be cloned</li>
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</ul></dd>
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<dt>Returns: PK11Context</dt>
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</dl>
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</td></tr></table>
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</div>
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<a name="digest_final"></a>
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<div>
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<table class="details" border="1" cellpadding="3"
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cellspacing="0" width="100%" bgcolor="white">
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<tr><td>
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr valign="top"><td>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">digest_final</span>()</span>
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</h3>
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</td><td align="right" valign="top"
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>
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</td>
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</tr></table>
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Completes the multi-part cryptographic operation in progress
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on this context and returns any final data which may have been
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pending in the context (i.e. the output data is flushed from the
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context). If there was no final data the returned
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data buffer will have a length of zero.
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<dl class="fields">
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<dt>Returns: data</dt>
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</dl>
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</td></tr></table>
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</div>
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<a name="digest_key"></a>
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<div>
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<table class="details" border="1" cellpadding="3"
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cellspacing="0" width="100%" bgcolor="white">
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<tr><td>
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr valign="top"><td>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">digest_key</span>(<span class="sig-arg">sym_key</span>)</span>
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</h3>
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</td><td align="right" valign="top"
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>
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</td>
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</tr></table>
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Continues a multiple-part message-digesting operation by digesting the
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value of a secret key.
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<dl class="fields">
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<dt>Parameters:</dt>
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<dd><ul class="nomargin-top">
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<li><strong class="pname"><code>sym_key</code></strong> (PK11SymKey object) - symmetric key</li>
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</ul></dd>
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</dl>
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</td></tr></table>
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</div>
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<a name="digest_op"></a>
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<div>
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<table class="details" border="1" cellpadding="3"
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cellspacing="0" width="100%" bgcolor="white">
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<tr><td>
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr valign="top"><td>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">digest_op</span>(<span class="sig-arg">data</span>)</span>
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</h3>
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</td><td align="right" valign="top"
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>
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</td>
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</tr></table>
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Execute a digest/signature operation.
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<dl class="fields">
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<dt>Parameters:</dt>
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<dd><ul class="nomargin-top">
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<li><strong class="pname"><code>data</code></strong> (any read buffer compatible object (e.g. buffer or string)) - raw data to compute digest from</li>
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</ul></dd>
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</dl>
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</td></tr></table>
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</div>
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<a name="finalize"></a>
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<div>
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<table class="details" border="1" cellpadding="3"
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cellspacing="0" width="100%" bgcolor="white">
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<tr><td>
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tr valign="top"><td>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">finalize</span>()</span>
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</h3>
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</td><td align="right" valign="top"
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>
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</td>
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</tr></table>
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<p>Clean up cipher operation so that any pending multi-part
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operations have been flushed. Any pending output which would
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have been available as a result of the flush is discarded.
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The context is left in a state available for reuse.</p>
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<p>WARNING: Currently context reuse only works for digest contexts
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not encryption/decryption contexts</p>
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<dl class="fields">
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</dl>
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</td></tr></table>
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</div>
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<br />
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<!-- ==================== NAVIGATION BAR ==================== -->
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<table class="navbar" border="0" width="100%" cellpadding="0"
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bgcolor="#a0c0ff" cellspacing="0">
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<tr valign="middle">
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<!-- Home link -->
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<th> <a
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href="nss-module.html">Home</a> </th>
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<!-- Tree link -->
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<th> <a
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href="module-tree.html">Trees</a> </th>
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<!-- Index link -->
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<th> <a
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href="identifier-index.html">Indices</a> </th>
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<!-- Help link -->
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<th> <a
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href="help.html">Help</a> </th>
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