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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Crypto++: AutoSeededRandomPool class Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.3.2 --><div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Compound List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="namespacemembers.html">Namespace Members</a> | <a class="qindex" href="functions.html">Compound Members</a> | <a class="qindex" href="globals.html">File Members</a></div><h1>AutoSeededRandomPool Class Reference</h1><code>#include <<a class="el" href="osrng_8h-source.html">osrng.h</a>></code><p><p>Inheritance diagram for AutoSeededRandomPool:<p><center><img src="class_auto_seeded_random_pool.png" usemap="#AutoSeededRandomPool_map" border="0" alt=""></center><map name="AutoSeededRandomPool_map"><area href="class_random_pool.html" alt="RandomPool" shape="rect" coords="177,224,403,248"><area href="class_random_number_generator.html" alt="RandomNumberGenerator" shape="rect" coords="0,168,226,192"><area href="class_algorithm.html" alt="Algorithm" shape="rect" coords="0,112,226,136"><area href="class_buffered_transformation.html" alt="BufferedTransformation" shape="rect" coords="354,112,580,136"><area href="class_clonable.html" alt="Clonable" shape="rect" coords="0,56,226,80"><area href="class_algorithm.html" alt="Algorithm" shape="rect" coords="236,56,462,80"><area href="class_waitable.html" alt="Waitable" shape="rect" coords="472,56,698,80"><area href="class_clonable.html" alt="Clonable" shape="rect" coords="236,0,462,24"></map><a href="class_auto_seeded_random_pool-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>Automaticly Seeded Randomness Pool. <p>This class seeds itself using an operating system provided RNG. <p><p>Definition at line <a class="el" href="osrng_8h-source.html#l00082">82</a> of file <a class="el" href="osrng_8h-source.html">osrng.h</a>.<table border=0 cellpadding=0 cellspacing=0><tr><td></td></tr><tr><td colspan=2><br><h2>SIGNALS</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_zlib_decompressorz5_0" doxytag="AutoSeededRandomPool::IsolatedMessageSeriesEnd"></a>virtual bool </td><td class="memItemRight" valign=bottom><b>IsolatedMessageSeriesEnd</b> (bool blocking)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_windows_pipe_sinkz5_2" doxytag="AutoSeededRandomPool::Initialize"></a>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_windows_pipe_sinkz5_2">Initialize</a> (const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &parameters=<a class="el" href="cryptlib_8h.html#a3">g_nullNameValuePairs</a>, int propagation=-1)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">initialize or reinitialize this object <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>virtual bool </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_windows_pipe_sinkz5_3">Flush</a> (bool hardFlush, int propagation=-1, bool blocking=true)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">flush buffered input and/or output </em> <a href="#_windows_pipe_sinkz5_3"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>virtual bool </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_windows_pipe_sinkz5_4">MessageSeriesEnd</a> (int propagation=-1, bool blocking=true)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">mark end of a series of messages </em> <a href="#_windows_pipe_sinkz5_4"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_zlib_compressorz5_1">SetAutoSignalPropagation</a> (int propagation)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">set propagation of automatically generated and transfered signals </em> <a href="#_zlib_compressorz5_1"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_zlib_compressorz5_2" doxytag="AutoSeededRandomPool::GetAutoSignalPropagation"></a>virtual int </td><td class="memItemRight" valign=bottom><b>GetAutoSignalPropagation</b> () const</td></tr><tr><td colspan=2><br><h2>ATTACHMENT</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>virtual bool </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_windows_pipe_sinkz15_0">Attachable</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns whether this object allows attachment </em> <a href="#_windows_pipe_sinkz15_0"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_windows_pipe_sinkz15_1" doxytag="AutoSeededRandomPool::AttachedTransformation"></a>virtual <a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> * </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_windows_pipe_sinkz15_1">AttachedTransformation</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns the object immediately attached to this object or NULL for no attachment <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_windows_pipe_sinkz15_2" doxytag="AutoSeededRandomPool::AttachedTransformation"></a>virtual const <a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> * </td><td class="memItemRight" valign=bottom><b>AttachedTransformation</b> () const</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_windows_pipe_sinkz15_3" doxytag="AutoSeededRandomPool::Detach"></a>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_windows_pipe_sinkz15_3">Detach</a> (<a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> *newAttachment=0)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">delete the current attachment chain and replace it with newAttachment <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_zlib_decompressorz15_0" doxytag="AutoSeededRandomPool::Attach"></a>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_zlib_decompressorz15_0">Attach</a> (<a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> *newAttachment)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">add newAttachment to the end of attachment chain <br><br></td></tr><tr><td colspan=2><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_auto_seeded_random_poola0" doxytag="AutoSeededRandomPool::AutoSeededRandomPool"></a> </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_auto_seeded_random_poola0">AutoSeededRandomPool</a> (bool blocking=false, unsigned int seedSize=32)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">blocking will be ignored if the prefered RNG isn't available <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_auto_seeded_random_poola1" doxytag="AutoSeededRandomPool::Reseed"></a>void </td><td class="memItemRight" valign=bottom><b>Reseed</b> (bool blocking=false, unsigned int seedSize=32)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>unsigned int </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_random_poola1">Put2</a> (const byte *begin, unsigned int, int messageEnd, bool blocking)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">input multiple bytes for blocking or non-blocking processing </em> <a href="#_random_poola1"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_random_poola2" doxytag="AutoSeededRandomPool::AnyRetrievable"></a>bool </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_random_poola2">AnyRetrievable</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns whether any bytes are currently ready for retrieval <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>unsigned long </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_random_poola3">MaxRetrievable</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns number of bytes that is currently ready for retrieval </em> <a href="#_random_poola3"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_random_poola4" doxytag="AutoSeededRandomPool::TransferTo2"></a>unsigned int </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_random_poola4">TransferTo2</a> (<a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> &target, unsigned long &transferBytes, const std::string &channel=NULL_CHANNEL, bool blocking=true)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight"><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_random_poola5" doxytag="AutoSeededRandomPool::CopyRangeTo2"></a>unsigned int </td><td class="memItemRight" valign=bottom><b>CopyRangeTo2</b> (<a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> &target, unsigned long &begin, unsigned long end=ULONG_MAX, const std::string &channel=NULL_CHANNEL, bool blocking=true) const</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_random_poola6" doxytag="AutoSeededRandomPool::GenerateByte"></a>byte </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_random_poola6">GenerateByte</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate new random byte and return it <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_random_poola7">GenerateBlock</a> (byte *output, unsigned int size)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate random array of bytes </em> <a href="#_random_poola7"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_random_poola8" doxytag="AutoSeededRandomPool::IsolatedInitialize"></a>void </td><td class="memItemRight" valign=bottom><b>IsolatedInitialize</b> (const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &parameters)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>virtual unsigned int </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_x917_r_n_ga2">GenerateBit</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate new random bit and return it </em> <a href="#_x917_r_n_ga2"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_x917_r_n_ga3" doxytag="AutoSeededRandomPool::GenerateWord32"></a>virtual word32 </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_x917_r_n_ga3">GenerateWord32</a> (word32 a=0, word32 b=0xffffffffL)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate a random 32 bit word in the range min to max, inclusive <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_x917_r_n_ga5">DiscardBytes</a> (unsigned int n)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate and discard n bytes </em> <a href="#_x917_r_n_ga5"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_x917_r_n_ga6" doxytag="AutoSeededRandomPool::Shuffle"></a>template<class IT> void </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_x917_r_n_ga6">Shuffle</a> (IT begin, IT end)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">randomly shuffle the specified array, resulting permutation is uniformly distributed <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_zlib_decompressora17" doxytag="AutoSeededRandomPool::AlgorithmName"></a>virtual std::string </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_zlib_decompressora17">AlgorithmName</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns name of this algorithm, not universally implemented yet <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_zlib_decompressora18" doxytag="AutoSeededRandomPool::Clone"></a>virtual <a class="el" href="class_clonable.html">Clonable</a> * </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_zlib_decompressora18">Clone</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">this is not implemented by most classes yet <br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_bufferlessa2" doxytag="AutoSeededRandomPool::IsolatedFlush"></a>bool </td><td class="memItemRight" valign=bottom><b>IsolatedFlush</b> (bool hardFlush, bool blocking)</td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> & </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_zlib_decompressora16">Ref</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">return a reference to this object </em> <a href="#_zlib_decompressora16"></a><em><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>bool </td><td class="memItemRight" valign=bottom><a class="el" href="class_auto_seeded_random_pool.html#_zlib_decompressora19">Wait</a> (unsigned long milliseconds)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">wait on this object </em> <a href="#_zlib_decompressora19"></a><em><br><br></td></tr><tr><td colspan=2><br><h2>Static Public Attributes</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_zlib_decompressors0" doxytag="AutoSeededRandomPool::NULL_CHANNEL"></a>const std::string </td><td class="memItemRight" valign=bottom><b>NULL_CHANNEL</b></td></tr><tr><td colspan=2><br><h2>Protected Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_random_poolb0" doxytag="AutoSeededRandomPool::Stir"></a>void </td><td class="memItemRight" valign=bottom><b>Stir</b> ()</td></tr><tr><td colspan=2><br><h2>Static Protected Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top><a name="_zlib_decompressorf0" doxytag="AutoSeededRandomPool::DecrementPropagation"></a>int </td><td class="memItemRight" valign=bottom><b>DecrementPropagation</b> (int propagation)</td></tr></table><hr><h2>Member Function Documentation</h2><a name="_random_poola1" doxytag="AutoSeededRandomPool::Put2"></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"> unsigned int RandomPool::Put2 </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const byte * </td> <td class="mdname" nowrap> <em>begin</em>, </td> </tr> <tr> <td></td> <td></td> <td class="md" nowrap>unsigned </td> <td class="mdname" nowrap> <em>int</em>, </td> </tr> <tr> <td></td> <td></td> <td class="md" nowrap>int </td> <td class="mdname" nowrap> <em>messageEnd</em>, </td> </tr> <tr> <td></td> <td></td> <td class="md" nowrap>bool </td> <td class="mdname" nowrap> <em>blocking</em></td> </tr> <tr> <td></td> <td class="md">) </td> <td class="md" colspan="2"><code> [virtual, inherited]</code></td> </tr> </table> </td> </tr></table><table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td><p>input multiple bytes for blocking or non-blocking processing <p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign=top><em>messageEnd</em> </td><td>means how many filters to signal MessageEnd to, including this one </td></tr> </table></dl><p>Implements <a class="el" href="class_buffered_transformation.html#_unflushable_3_01_sink_01_4z1_9">BufferedTransformation</a>.<p>Definition at line <a class="el" href="randpool_8cpp-source.html#l00043">43</a> of file <a class="el" href="randpool_8cpp-source.html">randpool.cpp</a>.<p>References <a class="el" href="secblock_8h-source.html#l00264">SecBlock< byte >::size()</a>. </td> </tr></table><a name="_random_poola3" doxytag="AutoSeededRandomPool::MaxRetrievable"></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"> unsigned long RandomPool::MaxRetrievable </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap> const<code> [inline, virtual, inherited]</code></td> </tr> </table> </td> </tr></table><table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td><p>returns number of bytes that is currently ready for retrieval <p>All retrieval functions return the actual number of bytes retrieved, which is the lesser of the request number and <a class="el" href="class_random_pool.html#_random_poola3">MaxRetrievable()</a>. <p>Reimplemented from <a class="el" href="class_buffered_transformation.html#_zlib_decompressorz7_0">BufferedTransformation</a>.<p>Definition at line <a class="el" href="randpool_8h-source.html#l00023">23</a> of file <a class="el" href="randpool_8h-source.html">randpool.h</a>. </td> </tr></table><a name="_random_poola7" doxytag="AutoSeededRandomPool::GenerateBlock"></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"> void RandomPool::GenerateBlock </td>⌨️ 快捷键说明
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