<!-- HTML header for doxygen 1.8.10--> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.14"/> <title>Intel® Enhanced Privacy ID SDK: epid/common/math/bignum.h File Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtreedata.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(initResizable); /* @license-end */</script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> <link href="epidstyle.css" rel="stylesheet" type="text/css"/> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname"><a onclick="storeLink('index.html')" id="projectlink" class="index.html" href="index.html">Intel® Enhanced Privacy ID SDK</a>  <span id="projectnumber">6.0.1</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.14 --> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(function(){initNavTree('bignum_8h.html','');}); /* @license-end */ </script> <div id="doc-content"> <div class="header"> <div class="summary"> <a href="#typedef-members">Typedefs</a> | <a href="#func-members">Functions</a> </div> <div class="headertitle"> <div class="title">bignum.h File Reference</div> </div> </div><!--header--> <div class="contents"> <p>Big number interface. <a href="#details">More...</a></p> <div class="textblock"><code>#include <stddef.h></code><br /> <code>#include <stdint.h></code><br /> <code>#include "<a class="el" href="errors_8h.html">epid/common/errors.h</a>"</code><br /> <code>#include "<a class="el" href="stdtypes_8h.html">epid/common/stdtypes.h</a>"</code><br /> <code>#include "<a class="el" href="types_8h.html">epid/common/types.h</a>"</code><br /> </div><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a> Typedefs</h2></td></tr> <tr class="memitem:ga2bf153e27be2683f0fb26f0f7ff1f718"><td class="memItemLeft" align="right" valign="top"> typedef struct <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a></td></tr> <tr class="memdesc:ga2bf153e27be2683f0fb26f0f7ff1f718"><td class="mdescLeft"> </td><td class="mdescRight">Internal representation of large numbers. <br /></td></tr> <tr class="separator:ga2bf153e27be2683f0fb26f0f7ff1f718"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> <tr class="memitem:gad5f6f262bfd780fed3678bcee16f0aed"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#gad5f6f262bfd780fed3678bcee16f0aed">NewBigNum</a> (size_t data_size_bytes, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> **bignum)</td></tr> <tr class="memdesc:gad5f6f262bfd780fed3678bcee16f0aed"><td class="mdescLeft"> </td><td class="mdescRight">Constructs a new BigNum. <a href="group___big_num_primitives.html#gad5f6f262bfd780fed3678bcee16f0aed">More...</a><br /></td></tr> <tr class="separator:gad5f6f262bfd780fed3678bcee16f0aed"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga2d17600068b1d94000635c6644258a03"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#ga2d17600068b1d94000635c6644258a03">DeleteBigNum</a> (<a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> **bignum)</td></tr> <tr class="memdesc:ga2d17600068b1d94000635c6644258a03"><td class="mdescLeft"> </td><td class="mdescRight">Deletes a previously allocated BigNum. <a href="group___big_num_primitives.html#ga2d17600068b1d94000635c6644258a03">More...</a><br /></td></tr> <tr class="separator:ga2d17600068b1d94000635c6644258a03"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gabe8e39d5788423f41770a71a4c911fbe"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#gabe8e39d5788423f41770a71a4c911fbe">ReadBigNum</a> (<a class="el" href="group___epid_types.html#gace6876a045f2c2694444b35ccb0844e2">ConstOctStr</a> bn_str, size_t strlen, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> *bn)</td></tr> <tr class="memdesc:gabe8e39d5788423f41770a71a4c911fbe"><td class="mdescLeft"> </td><td class="mdescRight">Deserializes a BigNum from a string. <a href="group___big_num_primitives.html#gabe8e39d5788423f41770a71a4c911fbe">More...</a><br /></td></tr> <tr class="separator:gabe8e39d5788423f41770a71a4c911fbe"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga904c16cc020e7196f22ac9abdc31b41f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#ga904c16cc020e7196f22ac9abdc31b41f">WriteBigNum</a> (<a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *bn, size_t strlen, <a class="el" href="group___epid_types.html#ga3315fb24f4c5783b6d6eb107933390b0">OctStr</a> bn_str)</td></tr> <tr class="memdesc:ga904c16cc020e7196f22ac9abdc31b41f"><td class="mdescLeft"> </td><td class="mdescRight">Serializes a BigNum to a string. <a href="group___big_num_primitives.html#ga904c16cc020e7196f22ac9abdc31b41f">More...</a><br /></td></tr> <tr class="separator:ga904c16cc020e7196f22ac9abdc31b41f"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gae70fd9b3026f0ab3c7e9601d0a3186b8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#gae70fd9b3026f0ab3c7e9601d0a3186b8">BigNumAdd</a> (<a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *a, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *b, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> *r)</td></tr> <tr class="memdesc:gae70fd9b3026f0ab3c7e9601d0a3186b8"><td class="mdescLeft"> </td><td class="mdescRight">Adds two BigNum values. <a href="group___big_num_primitives.html#gae70fd9b3026f0ab3c7e9601d0a3186b8">More...</a><br /></td></tr> <tr class="separator:gae70fd9b3026f0ab3c7e9601d0a3186b8"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gacbec9669ab0fe768e2be74dcaca397ea"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#gacbec9669ab0fe768e2be74dcaca397ea">BigNumSub</a> (<a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *a, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *b, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> *r)</td></tr> <tr class="memdesc:gacbec9669ab0fe768e2be74dcaca397ea"><td class="mdescLeft"> </td><td class="mdescRight">Subtracts two BigNum values. <a href="group___big_num_primitives.html#gacbec9669ab0fe768e2be74dcaca397ea">More...</a><br /></td></tr> <tr class="separator:gacbec9669ab0fe768e2be74dcaca397ea"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga03c89b8b8dd87de2c0f4b5822145d317"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#ga03c89b8b8dd87de2c0f4b5822145d317">BigNumMul</a> (<a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *a, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *b, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> *r)</td></tr> <tr class="memdesc:ga03c89b8b8dd87de2c0f4b5822145d317"><td class="mdescLeft"> </td><td class="mdescRight">Multiplies two BigNum values. <a href="group___big_num_primitives.html#ga03c89b8b8dd87de2c0f4b5822145d317">More...</a><br /></td></tr> <tr class="separator:ga03c89b8b8dd87de2c0f4b5822145d317"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga166134085464b0df2c8efcfccf8ec573"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#ga166134085464b0df2c8efcfccf8ec573">BigNumDiv</a> (<a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *a, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *b, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> *q, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> *r)</td></tr> <tr class="memdesc:ga166134085464b0df2c8efcfccf8ec573"><td class="mdescLeft"> </td><td class="mdescRight">Divides two BigNum values. <a href="group___big_num_primitives.html#ga166134085464b0df2c8efcfccf8ec573">More...</a><br /></td></tr> <tr class="separator:ga166134085464b0df2c8efcfccf8ec573"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga7dd6038987210d10bf843602fef0c929"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#ga7dd6038987210d10bf843602fef0c929">BigNumMod</a> (<a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *a, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *b, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> *r)</td></tr> <tr class="memdesc:ga7dd6038987210d10bf843602fef0c929"><td class="mdescLeft"> </td><td class="mdescRight">Computes modular reduction for BigNum value by specified modulus. <a href="group___big_num_primitives.html#ga7dd6038987210d10bf843602fef0c929">More...</a><br /></td></tr> <tr class="separator:ga7dd6038987210d10bf843602fef0c929"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gaf0366e47226563b17fcbc8e3ed766084"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#gaf0366e47226563b17fcbc8e3ed766084">BigNumIsEven</a> (<a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *a, <a class="el" href="stdtypes_8h.html#ad5c9d4ba3dc37783a528b0925dc981a0">bool</a> *is_even)</td></tr> <tr class="memdesc:gaf0366e47226563b17fcbc8e3ed766084"><td class="mdescLeft"> </td><td class="mdescRight">Checks if a BigNum is even. <a href="group___big_num_primitives.html#gaf0366e47226563b17fcbc8e3ed766084">More...</a><br /></td></tr> <tr class="separator:gaf0366e47226563b17fcbc8e3ed766084"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gacde6564a814617a96985b379be0dfabb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#gacde6564a814617a96985b379be0dfabb">BigNumIsZero</a> (<a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *a, <a class="el" href="stdtypes_8h.html#ad5c9d4ba3dc37783a528b0925dc981a0">bool</a> *is_zero)</td></tr> <tr class="memdesc:gacde6564a814617a96985b379be0dfabb"><td class="mdescLeft"> </td><td class="mdescRight">Checks if a BigNum is zero. <a href="group___big_num_primitives.html#gacde6564a814617a96985b379be0dfabb">More...</a><br /></td></tr> <tr class="separator:gacde6564a814617a96985b379be0dfabb"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gafd64b66fc85dab0005f4a1bb67bdf7b4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___big_num_primitives.html#gafd64b66fc85dab0005f4a1bb67bdf7b4">BigNumPow2N</a> (unsigned int n, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> *r)</td></tr> <tr class="memdesc:gafd64b66fc85dab0005f4a1bb67bdf7b4"><td class="mdescLeft"> </td><td class="mdescRight">Raises 2 to the given power. <a href="group___big_num_primitives.html#gafd64b66fc85dab0005f4a1bb67bdf7b4">More...</a><br /></td></tr> <tr class="separator:gafd64b66fc85dab0005f4a1bb67bdf7b4"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>Big number interface. </p> </div></div><!-- contents --> </div><!-- doc-content --> <!-- HTML footer for 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