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<title>Crypto++: PKCS12_PBKDF< T > Class Template Reference</title>
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<h1>PKCS12_PBKDF< T > Class Template Reference</h1><!-- doxytag: class="PKCS12_PBKDF" --><!-- doxytag: inherits="PasswordBasedKeyDerivationFunction" -->
<p>PBKDF from PKCS #12, appendix B, T should be a <a class="el" href="class_hash_transformation.html" title="interface for hash functions and data processing part of MACs">HashTransformation</a> class.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="pwdbased_8h_source.html">pwdbased.h</a>></code></p>
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Inheritance diagram for PKCS12_PBKDF< T >:</div>
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<img src="class_p_k_c_s12___p_b_k_d_f.gif" usemap="#PKCS12_PBKDF< T >_map" alt=""/>
<map id="PKCS12_PBKDF< T >_map" name="PKCS12_PBKDF< T >_map">
<area href="class_password_based_key_derivation_function.html" alt="PasswordBasedKeyDerivationFunction" shape="rect" coords="0,0,231,24"/>
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<p><a href="class_p_k_c_s12___p_b_k_d_f-members.html">List of all members.</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a61406ac2584081c34a55fec73eb8aed3"></a><!-- doxytag: member="PKCS12_PBKDF::MaxDerivedKeyLength" ref="a61406ac2584081c34a55fec73eb8aed3" args="() const " -->
size_t </td><td class="memItemRight" valign="bottom"><b>MaxDerivedKeyLength</b> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3b0951334a956d4055a400bbfff3aa47"></a><!-- doxytag: member="PKCS12_PBKDF::UsesPurposeByte" ref="a3b0951334a956d4055a400bbfff3aa47" args="() const " -->
bool </td><td class="memItemRight" valign="bottom"><b>UsesPurposeByte</b> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k_c_s12___p_b_k_d_f.html#a10da705e5b49d3777e244bac6ae0182b">DeriveKey</a> (byte *derived, size_t derivedLen, byte purpose, const byte *password, size_t passwordLen, const byte *salt, size_t saltLen, unsigned int iterations, double timeInSeconds) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">derive key from password <a href="#a10da705e5b49d3777e244bac6ae0182b"></a><br/></td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<h3>template<class T><br/>
class PKCS12_PBKDF< T ></h3>
<p>PBKDF from PKCS #12, appendix B, T should be a <a class="el" href="class_hash_transformation.html" title="interface for hash functions and data processing part of MACs">HashTransformation</a> class. </p>
<p>Definition at line <a class="el" href="pwdbased_8h_source.html#l00140">140</a> of file <a class="el" href="pwdbased_8h_source.html">pwdbased.h</a>.</p>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a10da705e5b49d3777e244bac6ae0182b"></a><!-- doxytag: member="PKCS12_PBKDF::DeriveKey" ref="a10da705e5b49d3777e244bac6ae0182b" args="(byte *derived, size_t derivedLen, byte purpose, const byte *password, size_t passwordLen, const byte *salt, size_t saltLen, unsigned int iterations, double timeInSeconds) const " -->
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template<class T > </div>
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<td class="memname">unsigned int <a class="el" href="class_p_k_c_s12___p_b_k_d_f.html">PKCS12_PBKDF</a>< T >::DeriveKey </td>
<td>(</td>
<td class="paramtype">byte * </td>
<td class="paramname"> <em>derived</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"> <em>derivedLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">byte </td>
<td class="paramname"> <em>purpose</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const byte * </td>
<td class="paramname"> <em>password</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"> <em>passwordLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const byte * </td>
<td class="paramname"> <em>salt</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"> <em>saltLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>iterations</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>timeInSeconds</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td> const<code> [inline, virtual]</code></td>
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<div class="memdoc">
<p>derive key from password </p>
<p>If timeInSeconds != 0, will iterate until time elapsed, as measured by <a class="el" href="class_thread_user_timer.html" title="measure CPU time spent executing instructions of this thread (if supported by OS)...">ThreadUserTimer</a> Returns actual iteration count, which is equal to iterations if timeInSeconds == 0, and not less than iterations otherwise. </p>
<p>Implements <a class="el" href="class_password_based_key_derivation_function.html#aeaff60e52adddbaf6abd9ff2b64f5356">PasswordBasedKeyDerivationFunction</a>.</p>
<p>Definition at line <a class="el" href="pwdbased_8h_source.html#l00149">149</a> of file <a class="el" href="pwdbased_8h_source.html">pwdbased.h</a>.</p>
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</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="pwdbased_8h_source.html">pwdbased.h</a></li>
</ul>
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<hr size="1"/><address style="text-align: right;"><small>Generated on 9 Dec 2009 for Crypto++ by
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