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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: PublicBlumBlumShub Class Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li class="current"><a href="classes.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="classes.html"><span>Alphabetical List</span></a></li> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><h1>PublicBlumBlumShub Class Reference</h1><!-- doxytag: class="PublicBlumBlumShub" --><!-- doxytag: inherits="RandomNumberGenerator,StreamTransformation" --><code>#include <<a class="el" href="blumshub_8h-source.html">blumshub.h</a>></code><p><p>Inheritance diagram for PublicBlumBlumShub:<p><center><img src="class_public_blum_blum_shub.png" usemap="#PublicBlumBlumShub_map" border="0" alt=""></center><map name="PublicBlumBlumShub_map"><area href="class_random_number_generator.html" alt="RandomNumberGenerator" shape="rect" coords="0,112,158,136"><area href="class_stream_transformation.html" alt="StreamTransformation" shape="rect" coords="168,112,326,136"><area href="class_algorithm.html" alt="Algorithm" shape="rect" coords="0,56,158,80"><area href="class_algorithm.html" alt="Algorithm" shape="rect" coords="168,56,326,80"><area href="class_clonable.html" alt="Clonable" shape="rect" coords="0,0,158,24"><area href="class_clonable.html" alt="Clonable" shape="rect" coords="168,0,326,24"><area href="class_blum_blum_shub.html" alt="BlumBlumShub" shape="rect" coords="84,224,242,248"></map><a href="class_public_blum_blum_shub-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2><a class="el" href="class_blum_blum_shub.html" title="BlumBlumShub with factorization of the modulus.">BlumBlumShub</a> without factorization of the modulus. <p><p>Definition at line <a class="el" href="blumshub_8h-source.html#l00012">12</a> of file <a class="el" href="blumshub_8h-source.html">blumshub.h</a>.<table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="24c3820f9c8b8c041dd2cac44bbefae5"></a><!-- doxytag: member="PublicBlumBlumShub::PublicBlumBlumShub" ref="24c3820f9c8b8c041dd2cac44bbefae5" args="(const Integer &n, const Integer &seed)" --> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#24c3820f9c8b8c041dd2cac44bbefae5">PublicBlumBlumShub</a> (const <a class="el" href="class_integer.html">Integer</a> &n, const <a class="el" href="class_integer.html">Integer</a> &seed)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#6871d5e2ba162f32574d6b43e2473286">GenerateBit</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate new random bit and return it <a href="#6871d5e2ba162f32574d6b43e2473286"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="aeb3ba6a07fe0a67d35c4fb84bfc71cf"></a><!-- doxytag: member="PublicBlumBlumShub::GenerateByte" ref="aeb3ba6a07fe0a67d35c4fb84bfc71cf" args="()" -->byte </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#aeb3ba6a07fe0a67d35c4fb84bfc71cf">GenerateByte</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate new random byte and return it <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="8301fb046b5954854ec9635ae16f615b"></a><!-- doxytag: member="PublicBlumBlumShub::GenerateBlock" ref="8301fb046b5954854ec9635ae16f615b" args="(byte *output, size_t size)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#8301fb046b5954854ec9635ae16f615b">GenerateBlock</a> (byte *output, size_t size)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate random array of bytes <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#fb03a58653cb83c9a9013f3a57105bfc">ProcessData</a> (byte *outString, const byte *inString, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">encrypt or decrypt an array of bytes of specified length <a href="#fb03a58653cb83c9a9013f3a57105bfc"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="c322c5980509bc4e8075f28c4425ac3f"></a><!-- doxytag: member="PublicBlumBlumShub::IsSelfInverting" ref="c322c5980509bc4e8075f28c4425ac3f" args="() const" -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#c322c5980509bc4e8075f28c4425ac3f">IsSelfInverting</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns whether this transformation is self-inverting (e.g. xor with a keystream) <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0ad21fce7f3113ab25ea05e47773a786"></a><!-- doxytag: member="PublicBlumBlumShub::IsForwardTransformation" ref="0ad21fce7f3113ab25ea05e47773a786" args="() const" -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#0ad21fce7f3113ab25ea05e47773a786">IsForwardTransformation</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns whether this is an encryption object <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="6feb4f0afedb62a495b7a9ae311fa1cb"></a><!-- doxytag: member="PublicBlumBlumShub::IncorporateEntropy" ref="6feb4f0afedb62a495b7a9ae311fa1cb" args="(const byte *input, size_t length)" -->virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_random_number_generator.html#6feb4f0afedb62a495b7a9ae311fa1cb">IncorporateEntropy</a> (const byte *input, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">update RNG state with additional unpredictable values <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="859bf69f7fae074201745eadf765ae44"></a><!-- doxytag: member="PublicBlumBlumShub::CanIncorporateEntropy" ref="859bf69f7fae074201745eadf765ae44" args="() const" -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_random_number_generator.html#859bf69f7fae074201745eadf765ae44">CanIncorporateEntropy</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns true if IncorporateEntropy is implemented <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="c06c9f5e66f35d643e4192f231b8a4cd"></a><!-- doxytag: member="PublicBlumBlumShub::GenerateWord32" ref="c06c9f5e66f35d643e4192f231b8a4cd" args="(word32 a=0, word32 b=0xffffffffL)" -->virtual word32 </td><td class="memItemRight" valign="bottom"><a class="el" href="class_random_number_generator.html#c06c9f5e66f35d643e4192f231b8a4cd">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></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="44f70ad8fed869a4ee55f50ef8e6e699"></a><!-- doxytag: member="PublicBlumBlumShub::DiscardBytes" ref="44f70ad8fed869a4ee55f50ef8e6e699" args="(size_t n)" -->virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_random_number_generator.html#44f70ad8fed869a4ee55f50ef8e6e699">DiscardBytes</a> (size_t n)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate and discard n bytes <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="5cc474006e2c7383ec20cc4d0c2abbaf"></a><!-- doxytag: member="PublicBlumBlumShub::GenerateIntoBufferedTransformation" ref="5cc474006e2c7383ec20cc4d0c2abbaf" args="(BufferedTransformation &target, const std::string &channel, lword length)" -->virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_random_number_generator.html#5cc474006e2c7383ec20cc4d0c2abbaf">GenerateIntoBufferedTransformation</a> (<a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> &target, const std::string &channel, lword length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate random bytes as input to a <a class="el" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> <br></td></tr><tr><td class="memTemplParams" nowrap colspan="2"><a class="anchor" name="9ef5090c556d086e7aa240acf7a131b4"></a><!-- doxytag: member="PublicBlumBlumShub::Shuffle" ref="9ef5090c556d086e7aa240acf7a131b4" args="(IT begin, IT end)" -->template<class IT> </td></tr><tr><td class="memTemplItemLeft" nowrap align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_random_number_generator.html#9ef5090c556d086e7aa240acf7a131b4">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></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4f31510a192d1121856efe8ad0a9b844"></a><!-- doxytag: member="PublicBlumBlumShub::AlgorithmName" ref="4f31510a192d1121856efe8ad0a9b844" args="() const" -->virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="class_algorithm.html#4f31510a192d1121856efe8ad0a9b844">AlgorithmName</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns name of this algorithm, not universally implemented yet <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="d0016ba2d505c23aa85aad49e6c19bb7"></a><!-- doxytag: member="PublicBlumBlumShub::Clone" ref="d0016ba2d505c23aa85aad49e6c19bb7" args="() const" -->virtual <a class="el" href="class_clonable.html">Clonable</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_clonable.html#d0016ba2d505c23aa85aad49e6c19bb7">Clone</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">this is not implemented by most classes yet <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_stream_transformation.html">StreamTransformation</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#8c9304fff5af593ee68d3cf0d33c06e9">Ref</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">return a reference to this object, <a href="#8c9304fff5af593ee68d3cf0d33c06e9"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="e224d250f716e82c54bc4e4c8930d188"></a><!-- doxytag: member="PublicBlumBlumShub::MandatoryBlockSize" ref="e224d250f716e82c54bc4e4c8930d188" args="() const" -->virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#e224d250f716e82c54bc4e4c8930d188">MandatoryBlockSize</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns block size, if input must be processed in blocks, otherwise 1 <br></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_stream_transformation.html#f66ef64545279c01310718af3d627534">OptimalBlockSize</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns the input block size that is most efficient for this cipher <a href="#f66ef64545279c01310718af3d627534"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="b8422f6eee08fbc70069e222186e90de"></a><!-- doxytag: member="PublicBlumBlumShub::GetOptimalBlockSizeUsed" ref="b8422f6eee08fbc70069e222186e90de" args="() const" -->virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#b8422f6eee08fbc70069e222186e90de">GetOptimalBlockSizeUsed</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns how much of the current block is used up <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="b9e603c24d02c4538b77b9d59f36310e"></a><!-- doxytag: member="PublicBlumBlumShub::OptimalDataAlignment" ref="b9e603c24d02c4538b77b9d59f36310e" args="() const" -->virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#b9e603c24d02c4538b77b9d59f36310e">OptimalDataAlignment</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns how input should be aligned for optimal performance <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_stream_transformation.html#0668b78edaea082f87bf3e878c4c02f7">ProcessLastBlock</a> (byte *outString, const byte *inString, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">for ciphers where the last block of data is special, encrypt or decrypt the last block of data <a href="#0668b78edaea082f87bf3e878c4c02f7"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0b7c5bc41b9b5f6443ee32d65ebc044c"></a><!-- doxytag: member="PublicBlumBlumShub::MinLastBlockSize" ref="0b7c5bc41b9b5f6443ee32d65ebc044c" args="() const" -->virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#0b7c5bc41b9b5f6443ee32d65ebc044c">MinLastBlockSize</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns the minimum size of the last block, 0 indicating the last block is not special <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="c00f3fcc21f33f11c8efa4de67ff7774"></a><!-- doxytag: member="PublicBlumBlumShub::ProcessString" ref="c00f3fcc21f33f11c8efa4de67ff7774" args="(byte *inoutString, size_t length)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#c00f3fcc21f33f11c8efa4de67ff7774">ProcessString</a> (byte *inoutString, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">same as ProcessData(inoutString, inoutString, length) <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="17951cb36412763e0d6bd9696177175d"></a><!-- doxytag: member="PublicBlumBlumShub::ProcessString" ref="17951cb36412763e0d6bd9696177175d" args="(byte *outString, const byte *inString, size_t length)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#17951cb36412763e0d6bd9696177175d">ProcessString</a> (byte *outString, const byte *inString, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">same as ProcessData(outString, inString, length) <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="71a9bd33526fc7f227050075e7a78106"></a><!-- doxytag: member="PublicBlumBlumShub::ProcessByte" ref="71a9bd33526fc7f227050075e7a78106" args="(byte input)" -->byte </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#71a9bd33526fc7f227050075e7a78106">ProcessByte</a> (byte input)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">implemented as {ProcessData(&input, &input, 1); return input;} <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="c97d3fcac9b9f596ac8a7c69b69524cf"></a><!-- doxytag: member="PublicBlumBlumShub::IsRandomAccess" ref="c97d3fcac9b9f596ac8a7c69b69524cf" args="() const=0" -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#c97d3fcac9b9f596ac8a7c69b69524cf">IsRandomAccess</a> () const=0</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns whether this cipher supports random access <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="7bfbac3f2e43b50d1e16e6b4b2d2e48a"></a><!-- doxytag: member="PublicBlumBlumShub::Seek" ref="7bfbac3f2e43b50d1e16e6b4b2d2e48a" args="(lword n)" -->virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#7bfbac3f2e43b50d1e16e6b4b2d2e48a">Seek</a> (lword n)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">for random access ciphers, seek to an absolute position <br></td></tr><tr><td colspan="2"><br><h2>Protected Attributes</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="60712ac102ff230738ea09fe7e141d89"></a><!-- doxytag: member="PublicBlumBlumShub::modn" ref="60712ac102ff230738ea09fe7e141d89" args="" --><a class="el" href="class_modular_arithmetic.html">ModularArithmetic</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#60712ac102ff230738ea09fe7e141d89">modn</a></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="45e5b885b73eef60d42220504e151701"></a><!-- doxytag: member="PublicBlumBlumShub::maxBits" ref="45e5b885b73eef60d42220504e151701" args="" -->word </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#45e5b885b73eef60d42220504e151701">maxBits</a></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="910cdec6f2473f08a1a7d06ec41c12af"></a><!-- doxytag: member="PublicBlumBlumShub::bitsLeft" ref="910cdec6f2473f08a1a7d06ec41c12af" args="" -->word </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#910cdec6f2473f08a1a7d06ec41c12af">bitsLeft</a></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="060f64661986ffee95b4ec13107cb363"></a><!-- doxytag: member="PublicBlumBlumShub::current" ref="060f64661986ffee95b4ec13107cb363" args="" --><a class="el" href="class_integer.html">Integer</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#060f64661986ffee95b4ec13107cb363">current</a></td></tr><tr><td colspan="2"><br><h2>Friends</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="64155f59c06572d6d5ebc0246f80fefd"></a><!-- doxytag: member="PublicBlumBlumShub::BlumGoldwasserPublicKey" ref="64155f59c06572d6d5ebc0246f80fefd" args="" -->class </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#64155f59c06572d6d5ebc0246f80fefd">BlumGoldwasserPublicKey</a></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="31aabf892ac3430c6e63d71acee8a373"></a><!-- doxytag: member="PublicBlumBlumShub::BlumGoldwasserPrivateKey" ref="31aabf892ac3430c6e63d71acee8a373" args="" -->class </td><td class="memItemRight" valign="bottom"><a class="el" href="class_public_blum_blum_shub.html#31aabf892ac3430c6e63d71acee8a373">BlumGoldwasserPrivateKey</a></td></tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="6871d5e2ba162f32574d6b43e2473286"></a><!-- doxytag: member="PublicBlumBlumShub::GenerateBit" ref="6871d5e2ba162f32574d6b43e2473286" args="()" --><div class="memitem"><div class="memproto"> <table class="memname">⌨️ 快捷键说明
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