1<!-- HTML header for doxygen 1.8.10--> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml"> 4<head> 5<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> 6<meta http-equiv="X-UA-Compatible" content="IE=9"/> 7<meta name="generator" content="Doxygen 1.8.14"/> 8<title>Intel® Enhanced Privacy ID SDK: epid/member/tiny/math/fp.h File Reference</title> 9<link href="tabs.css" rel="stylesheet" type="text/css"/> 10<script type="text/javascript" src="jquery.js"></script> 11<script type="text/javascript" src="dynsections.js"></script> 12<link href="navtree.css" rel="stylesheet" type="text/css"/> 13<script type="text/javascript" src="resize.js"></script> 14<script type="text/javascript" src="navtreedata.js"></script> 15<script type="text/javascript" src="navtree.js"></script> 16<script type="text/javascript"> 17/* @license 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48 <div id="nav-sync" class="sync"></div> 49 </div> 50 </div> 51 <div id="splitbar" style="-moz-user-select:none;" 52 class="ui-resizable-handle"> 53 </div> 54</div> 55<script type="text/javascript"> 56/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ 57$(document).ready(function(){initNavTree('fp_8h.html','');}); 58/* @license-end */ 59</script> 60<div id="doc-content"> 61<div class="header"> 62 <div class="summary"> 63<a href="#func-members">Functions</a> </div> 64 <div class="headertitle"> 65<div class="title">fp.h File Reference</div> </div> 66</div><!--header--> 67<div class="contents"> 68 69<p>Definition of Fp math. 70<a href="#details">More...</a></p> 71<div class="textblock"><code>#include <stddef.h></code><br /> 72<code>#include <stdint.h></code><br /> 73<code>#include "<a class="el" href="bitsupplier_8h.html">epid/common/bitsupplier.h</a>"</code><br /> 74</div><table class="memberdecls"> 75<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> 76Functions</h2></td></tr> 77<tr class="memitem:ac2eab44a7aa9679d107667ffc035ee0a"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#ac2eab44a7aa9679d107667ffc035ee0a">FpInField</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> const *in)</td></tr> 78<tr class="memdesc:ac2eab44a7aa9679d107667ffc035ee0a"><td class="mdescLeft"> </td><td class="mdescRight">Test if an element is in Fp. <a href="#ac2eab44a7aa9679d107667ffc035ee0a">More...</a><br /></td></tr> 79<tr class="separator:ac2eab44a7aa9679d107667ffc035ee0a"><td class="memSeparator" colspan="2"> </td></tr> 80<tr class="memitem:a55152abe8b866eba5a0c83cfb1bbe5f6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#a55152abe8b866eba5a0c83cfb1bbe5f6">FpAdd</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, <a class="el" href="struct_fp_elem.html">FpElem</a> const *left, <a class="el" href="struct_fp_elem.html">FpElem</a> const *right)</td></tr> 81<tr class="memdesc:a55152abe8b866eba5a0c83cfb1bbe5f6"><td class="mdescLeft"> </td><td class="mdescRight">Add two elements of Fp. <a href="#a55152abe8b866eba5a0c83cfb1bbe5f6">More...</a><br /></td></tr> 82<tr class="separator:a55152abe8b866eba5a0c83cfb1bbe5f6"><td class="memSeparator" colspan="2"> </td></tr> 83<tr class="memitem:a9392597a6fe50e5c102ce21b8a1ae6c2"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#a9392597a6fe50e5c102ce21b8a1ae6c2">FpMul</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, <a class="el" href="struct_fp_elem.html">FpElem</a> const *left, <a class="el" href="struct_fp_elem.html">FpElem</a> const *right)</td></tr> 84<tr class="memdesc:a9392597a6fe50e5c102ce21b8a1ae6c2"><td class="mdescLeft"> </td><td class="mdescRight">Multiply two elements of Fp. <a href="#a9392597a6fe50e5c102ce21b8a1ae6c2">More...</a><br /></td></tr> 85<tr class="separator:a9392597a6fe50e5c102ce21b8a1ae6c2"><td class="memSeparator" colspan="2"> </td></tr> 86<tr class="memitem:aa9cc9f5e33bba75420b83cb2d49ca280"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#aa9cc9f5e33bba75420b83cb2d49ca280">FpSub</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, <a class="el" href="struct_fp_elem.html">FpElem</a> const *left, <a class="el" href="struct_fp_elem.html">FpElem</a> const *right)</td></tr> 87<tr class="memdesc:aa9cc9f5e33bba75420b83cb2d49ca280"><td class="mdescLeft"> </td><td class="mdescRight">Subtract two elements of Fp. <a href="#aa9cc9f5e33bba75420b83cb2d49ca280">More...</a><br /></td></tr> 88<tr class="separator:aa9cc9f5e33bba75420b83cb2d49ca280"><td class="memSeparator" colspan="2"> </td></tr> 89<tr class="memitem:ab06b1b1a59f1138aa6c4d746ab707f86"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#ab06b1b1a59f1138aa6c4d746ab707f86">FpExp</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, <a class="el" href="struct_fp_elem.html">FpElem</a> const *base, <a class="el" href="struct_very_large_int.html">VeryLargeInt</a> const *exp)</td></tr> 90<tr class="memdesc:ab06b1b1a59f1138aa6c4d746ab707f86"><td class="mdescLeft"> </td><td class="mdescRight">Exponentiate an element of Fp by a large integer. <a href="#ab06b1b1a59f1138aa6c4d746ab707f86">More...</a><br /></td></tr> 91<tr class="separator:ab06b1b1a59f1138aa6c4d746ab707f86"><td class="memSeparator" colspan="2"> </td></tr> 92<tr class="memitem:a0524fd074857712ea61ea5717ff54fd3"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#a0524fd074857712ea61ea5717ff54fd3">FpNeg</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, <a class="el" href="struct_fp_elem.html">FpElem</a> const *in)</td></tr> 93<tr class="memdesc:a0524fd074857712ea61ea5717ff54fd3"><td class="mdescLeft"> </td><td class="mdescRight">Negate an element of Fp. <a href="#a0524fd074857712ea61ea5717ff54fd3">More...</a><br /></td></tr> 94<tr class="separator:a0524fd074857712ea61ea5717ff54fd3"><td class="memSeparator" colspan="2"> </td></tr> 95<tr class="memitem:a7bb685bd810368d8077f638ffcab2554"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#a7bb685bd810368d8077f638ffcab2554">FpEq</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> const *left, <a class="el" href="struct_fp_elem.html">FpElem</a> const *right)</td></tr> 96<tr class="memdesc:a7bb685bd810368d8077f638ffcab2554"><td class="mdescLeft"> </td><td class="mdescRight">Test if two elements in Fp are equal. <a href="#a7bb685bd810368d8077f638ffcab2554">More...</a><br /></td></tr> 97<tr class="separator:a7bb685bd810368d8077f638ffcab2554"><td class="memSeparator" colspan="2"> </td></tr> 98<tr class="memitem:a9e7500fe8ee73592b002ed675d1758b3"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#a9e7500fe8ee73592b002ed675d1758b3">FpInv</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, <a class="el" href="struct_fp_elem.html">FpElem</a> const *in)</td></tr> 99<tr class="memdesc:a9e7500fe8ee73592b002ed675d1758b3"><td class="mdescLeft"> </td><td class="mdescRight">Invert an element of Fp. <a href="#a9e7500fe8ee73592b002ed675d1758b3">More...</a><br /></td></tr> 100<tr class="separator:a9e7500fe8ee73592b002ed675d1758b3"><td class="memSeparator" colspan="2"> </td></tr> 101<tr class="memitem:a6c06b175fd82b5db555508f2d26713f8"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#a6c06b175fd82b5db555508f2d26713f8">FpRand</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, <a class="el" href="group___epid_common.html#ga6119a2c0323a3fca9e502b24bc378c2c">BitSupplier</a> rnd_func, void *rnd_param)</td></tr> 102<tr class="memdesc:a6c06b175fd82b5db555508f2d26713f8"><td class="mdescLeft"> </td><td class="mdescRight">Generate a random element of Fp. <a href="#a6c06b175fd82b5db555508f2d26713f8">More...</a><br /></td></tr> 103<tr class="separator:a6c06b175fd82b5db555508f2d26713f8"><td class="memSeparator" colspan="2"> </td></tr> 104<tr class="memitem:a54743809639797b4d4445c221291048b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#a54743809639797b4d4445c221291048b">FpRandNonzero</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, <a class="el" href="group___epid_common.html#ga6119a2c0323a3fca9e502b24bc378c2c">BitSupplier</a> rnd_func, void *rnd_param)</td></tr> 105<tr class="memdesc:a54743809639797b4d4445c221291048b"><td class="mdescLeft"> </td><td class="mdescRight">Generate a non-zero random element of Fp. <a href="#a54743809639797b4d4445c221291048b">More...</a><br /></td></tr> 106<tr class="separator:a54743809639797b4d4445c221291048b"><td class="memSeparator" colspan="2"> </td></tr> 107<tr class="memitem:adf010ec5710d4013e33efd7e5ba8f9ad"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#adf010ec5710d4013e33efd7e5ba8f9ad">FpClear</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result)</td></tr> 108<tr class="memdesc:adf010ec5710d4013e33efd7e5ba8f9ad"><td class="mdescLeft"> </td><td class="mdescRight">Clear an element of Fp. <a href="#adf010ec5710d4013e33efd7e5ba8f9ad">More...</a><br /></td></tr> 109<tr class="separator:adf010ec5710d4013e33efd7e5ba8f9ad"><td class="memSeparator" colspan="2"> </td></tr> 110<tr class="memitem:a23bf42c7024a318970a6b60c02d9a08d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#a23bf42c7024a318970a6b60c02d9a08d">FpSet</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, uint32_t in)</td></tr> 111<tr class="memdesc:a23bf42c7024a318970a6b60c02d9a08d"><td class="mdescLeft"> </td><td class="mdescRight">Set a element of Fp's value. <a href="#a23bf42c7024a318970a6b60c02d9a08d">More...</a><br /></td></tr> 112<tr class="separator:a23bf42c7024a318970a6b60c02d9a08d"><td class="memSeparator" colspan="2"> </td></tr> 113<tr class="memitem:a472b0a9229b0eff0ca445f158efa1175"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fp_8h.html#a472b0a9229b0eff0ca445f158efa1175">FpFromHash</a> (<a class="el" href="struct_fp_elem.html">FpElem</a> *result, unsigned char const *hash, size_t len)</td></tr> 114<tr class="memdesc:a472b0a9229b0eff0ca445f158efa1175"><td class="mdescLeft"> </td><td class="mdescRight">Reinterpret a buffer as an element of Fp. <a href="#a472b0a9229b0eff0ca445f158efa1175">More...</a><br /></td></tr> 115<tr class="separator:a472b0a9229b0eff0ca445f158efa1175"><td class="memSeparator" colspan="2"> </td></tr> 116</table> 117<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> 118<div class="textblock"><p>Definition of Fp math. </p> 119</div><h2 class="groupheader">Function Documentation</h2> 120<a id="a55152abe8b866eba5a0c83cfb1bbe5f6"></a> 121<h2 class="memtitle"><span class="permalink"><a href="#a55152abe8b866eba5a0c83cfb1bbe5f6">◆ </a></span>FpAdd()</h2> 122 123<div class="memitem"> 124<div class="memproto"> 125 <table class="memname"> 126 <tr> 127 <td class="memname">void FpAdd </td> 128 <td>(</td> 129 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 130 <td class="paramname"><em>result</em>, </td> 131 </tr> 132 <tr> 133 <td class="paramkey"></td> 134 <td></td> 135 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 136 <td class="paramname"><em>left</em>, </td> 137 </tr> 138 <tr> 139 <td class="paramkey"></td> 140 <td></td> 141 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 142 <td class="paramname"><em>right</em> </td> 143 </tr> 144 <tr> 145 <td></td> 146 <td>)</td> 147 <td></td><td></td> 148 </tr> 149 </table> 150</div><div class="memdoc"> 151 152<p>Add two elements of Fp. </p> 153<dl class="params"><dt>Parameters</dt><dd> 154 <table class="params"> 155 <tr><td class="paramdir">[out]</td><td class="paramname">result</td><td>of adding left and right. </td></tr> 156 <tr><td class="paramdir">[in]</td><td class="paramname">left</td><td>The first operand to be added. </td></tr> 157 <tr><td class="paramdir">[in]</td><td class="paramname">right</td><td>The second operand to be added. </td></tr> 158 </table> 159 </dd> 160</dl> 161 162</div> 163</div> 164<a id="adf010ec5710d4013e33efd7e5ba8f9ad"></a> 165<h2 class="memtitle"><span class="permalink"><a href="#adf010ec5710d4013e33efd7e5ba8f9ad">◆ </a></span>FpClear()</h2> 166 167<div class="memitem"> 168<div class="memproto"> 169 <table class="memname"> 170 <tr> 171 <td class="memname">void FpClear </td> 172 <td>(</td> 173 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 174 <td class="paramname"><em>result</em></td><td>)</td> 175 <td></td> 176 </tr> 177 </table> 178</div><div class="memdoc"> 179 180<p>Clear an element of Fp. </p> 181<dl class="params"><dt>Parameters</dt><dd> 182 <table class="params"> 183 <tr><td class="paramdir">[out]</td><td class="paramname">result</td><td>value to clear. </td></tr> 184 </table> 185 </dd> 186</dl> 187 188</div> 189</div> 190<a id="a7bb685bd810368d8077f638ffcab2554"></a> 191<h2 class="memtitle"><span class="permalink"><a href="#a7bb685bd810368d8077f638ffcab2554">◆ </a></span>FpEq()</h2> 192 193<div class="memitem"> 194<div class="memproto"> 195 <table class="memname"> 196 <tr> 197 <td class="memname">int FpEq </td> 198 <td>(</td> 199 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 200 <td class="paramname"><em>left</em>, </td> 201 </tr> 202 <tr> 203 <td class="paramkey"></td> 204 <td></td> 205 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 206 <td class="paramname"><em>right</em> </td> 207 </tr> 208 <tr> 209 <td></td> 210 <td>)</td> 211 <td></td><td></td> 212 </tr> 213 </table> 214</div><div class="memdoc"> 215 216<p>Test if two elements in Fp are equal. </p> 217<dl class="params"><dt>Parameters</dt><dd> 218 <table class="params"> 219 <tr><td class="paramdir">[in]</td><td class="paramname">left</td><td>The first operand to be tested. </td></tr> 220 <tr><td class="paramdir">[in]</td><td class="paramname">right</td><td>The second operand to be tested. </td></tr> 221 </table> 222 </dd> 223</dl> 224<dl class="section return"><dt>Returns</dt><dd>A value different from zero (i.e., true) if indeed the values are equal. Zero (i.e., false) otherwise. </dd></dl> 225 226</div> 227</div> 228<a id="ab06b1b1a59f1138aa6c4d746ab707f86"></a> 229<h2 class="memtitle"><span class="permalink"><a href="#ab06b1b1a59f1138aa6c4d746ab707f86">◆ </a></span>FpExp()</h2> 230 231<div class="memitem"> 232<div class="memproto"> 233 <table class="memname"> 234 <tr> 235 <td class="memname">void FpExp </td> 236 <td>(</td> 237 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 238 <td class="paramname"><em>result</em>, </td> 239 </tr> 240 <tr> 241 <td class="paramkey"></td> 242 <td></td> 243 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 244 <td class="paramname"><em>base</em>, </td> 245 </tr> 246 <tr> 247 <td class="paramkey"></td> 248 <td></td> 249 <td class="paramtype"><a class="el" href="struct_very_large_int.html">VeryLargeInt</a> const * </td> 250 <td class="paramname"><em>exp</em> </td> 251 </tr> 252 <tr> 253 <td></td> 254 <td>)</td> 255 <td></td><td></td> 256 </tr> 257 </table> 258</div><div class="memdoc"> 259 260<p>Exponentiate an element of Fp by a large integer. </p> 261<dl class="params"><dt>Parameters</dt><dd> 262 <table class="params"> 263 <tr><td class="paramdir">[out]</td><td class="paramname">result</td><td>target. </td></tr> 264 <tr><td class="paramdir">[in]</td><td class="paramname">base</td><td>the base. </td></tr> 265 <tr><td class="paramdir">[in]</td><td class="paramname">exp</td><td>the exponent. </td></tr> 266 </table> 267 </dd> 268</dl> 269 270</div> 271</div> 272<a id="a472b0a9229b0eff0ca445f158efa1175"></a> 273<h2 class="memtitle"><span class="permalink"><a href="#a472b0a9229b0eff0ca445f158efa1175">◆ </a></span>FpFromHash()</h2> 274 275<div class="memitem"> 276<div class="memproto"> 277 <table class="memname"> 278 <tr> 279 <td class="memname">void FpFromHash </td> 280 <td>(</td> 281 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 282 <td class="paramname"><em>result</em>, </td> 283 </tr> 284 <tr> 285 <td class="paramkey"></td> 286 <td></td> 287 <td class="paramtype">unsigned char const * </td> 288 <td class="paramname"><em>hash</em>, </td> 289 </tr> 290 <tr> 291 <td class="paramkey"></td> 292 <td></td> 293 <td class="paramtype">size_t </td> 294 <td class="paramname"><em>len</em> </td> 295 </tr> 296 <tr> 297 <td></td> 298 <td>)</td> 299 <td></td><td></td> 300 </tr> 301 </table> 302</div><div class="memdoc"> 303 304<p>Reinterpret a buffer as an element of Fp. </p> 305<dl class="params"><dt>Parameters</dt><dd> 306 <table class="params"> 307 <tr><td class="paramdir">[out]</td><td class="paramname">result</td><td>target. </td></tr> 308 <tr><td class="paramdir">[in]</td><td class="paramname">hash</td><td>buffer to reinterpret. </td></tr> 309 <tr><td class="paramdir">[in]</td><td class="paramname">len</td><td>length of hash in bytes. </td></tr> 310 </table> 311 </dd> 312</dl> 313 314</div> 315</div> 316<a id="ac2eab44a7aa9679d107667ffc035ee0a"></a> 317<h2 class="memtitle"><span class="permalink"><a href="#ac2eab44a7aa9679d107667ffc035ee0a">◆ </a></span>FpInField()</h2> 318 319<div class="memitem"> 320<div class="memproto"> 321 <table class="memname"> 322 <tr> 323 <td class="memname">int FpInField </td> 324 <td>(</td> 325 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 326 <td class="paramname"><em>in</em></td><td>)</td> 327 <td></td> 328 </tr> 329 </table> 330</div><div class="memdoc"> 331 332<p>Test if an element is in Fp. </p> 333<dl class="params"><dt>Parameters</dt><dd> 334 <table class="params"> 335 <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>the element to test </td></tr> 336 </table> 337 </dd> 338</dl> 339<dl class="section return"><dt>Returns</dt><dd>A value different from zero (i.e., true) indeed the value is in the field. Zero (i.e., false) otherwise. </dd></dl> 340 341</div> 342</div> 343<a id="a9e7500fe8ee73592b002ed675d1758b3"></a> 344<h2 class="memtitle"><span class="permalink"><a href="#a9e7500fe8ee73592b002ed675d1758b3">◆ </a></span>FpInv()</h2> 345 346<div class="memitem"> 347<div class="memproto"> 348 <table class="memname"> 349 <tr> 350 <td class="memname">void FpInv </td> 351 <td>(</td> 352 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 353 <td class="paramname"><em>result</em>, </td> 354 </tr> 355 <tr> 356 <td class="paramkey"></td> 357 <td></td> 358 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 359 <td class="paramname"><em>in</em> </td> 360 </tr> 361 <tr> 362 <td></td> 363 <td>)</td> 364 <td></td><td></td> 365 </tr> 366 </table> 367</div><div class="memdoc"> 368 369<p>Invert an element of Fp. </p> 370<dl class="params"><dt>Parameters</dt><dd> 371 <table class="params"> 372 <tr><td class="paramdir">[out]</td><td class="paramname">result</td><td>target. </td></tr> 373 <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>the value to invert. </td></tr> 374 </table> 375 </dd> 376</dl> 377 378</div> 379</div> 380<a id="a9392597a6fe50e5c102ce21b8a1ae6c2"></a> 381<h2 class="memtitle"><span class="permalink"><a href="#a9392597a6fe50e5c102ce21b8a1ae6c2">◆ </a></span>FpMul()</h2> 382 383<div class="memitem"> 384<div class="memproto"> 385 <table class="memname"> 386 <tr> 387 <td class="memname">void FpMul </td> 388 <td>(</td> 389 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 390 <td class="paramname"><em>result</em>, </td> 391 </tr> 392 <tr> 393 <td class="paramkey"></td> 394 <td></td> 395 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 396 <td class="paramname"><em>left</em>, </td> 397 </tr> 398 <tr> 399 <td class="paramkey"></td> 400 <td></td> 401 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 402 <td class="paramname"><em>right</em> </td> 403 </tr> 404 <tr> 405 <td></td> 406 <td>)</td> 407 <td></td><td></td> 408 </tr> 409 </table> 410</div><div class="memdoc"> 411 412<p>Multiply two elements of Fp. </p> 413<dl class="params"><dt>Parameters</dt><dd> 414 <table class="params"> 415 <tr><td class="paramdir">[out]</td><td class="paramname">result</td><td>of multiplying left and right. </td></tr> 416 <tr><td class="paramdir">[in]</td><td class="paramname">left</td><td>The first operand to be multiplied. </td></tr> 417 <tr><td class="paramdir">[in]</td><td class="paramname">right</td><td>The second operand to be multiplied. </td></tr> 418 </table> 419 </dd> 420</dl> 421 422</div> 423</div> 424<a id="a0524fd074857712ea61ea5717ff54fd3"></a> 425<h2 class="memtitle"><span class="permalink"><a href="#a0524fd074857712ea61ea5717ff54fd3">◆ </a></span>FpNeg()</h2> 426 427<div class="memitem"> 428<div class="memproto"> 429 <table class="memname"> 430 <tr> 431 <td class="memname">void FpNeg </td> 432 <td>(</td> 433 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 434 <td class="paramname"><em>result</em>, </td> 435 </tr> 436 <tr> 437 <td class="paramkey"></td> 438 <td></td> 439 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 440 <td class="paramname"><em>in</em> </td> 441 </tr> 442 <tr> 443 <td></td> 444 <td>)</td> 445 <td></td><td></td> 446 </tr> 447 </table> 448</div><div class="memdoc"> 449 450<p>Negate an element of Fp. </p> 451<dl class="params"><dt>Parameters</dt><dd> 452 <table class="params"> 453 <tr><td class="paramdir">[out]</td><td class="paramname">result</td><td>target. </td></tr> 454 <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>the value to negate. </td></tr> 455 </table> 456 </dd> 457</dl> 458 459</div> 460</div> 461<a id="a6c06b175fd82b5db555508f2d26713f8"></a> 462<h2 class="memtitle"><span class="permalink"><a href="#a6c06b175fd82b5db555508f2d26713f8">◆ </a></span>FpRand()</h2> 463 464<div class="memitem"> 465<div class="memproto"> 466 <table class="memname"> 467 <tr> 468 <td class="memname">int FpRand </td> 469 <td>(</td> 470 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 471 <td class="paramname"><em>result</em>, </td> 472 </tr> 473 <tr> 474 <td class="paramkey"></td> 475 <td></td> 476 <td class="paramtype"><a class="el" href="group___epid_common.html#ga6119a2c0323a3fca9e502b24bc378c2c">BitSupplier</a> </td> 477 <td class="paramname"><em>rnd_func</em>, </td> 478 </tr> 479 <tr> 480 <td class="paramkey"></td> 481 <td></td> 482 <td class="paramtype">void * </td> 483 <td class="paramname"><em>rnd_param</em> </td> 484 </tr> 485 <tr> 486 <td></td> 487 <td>)</td> 488 <td></td><td></td> 489 </tr> 490 </table> 491</div><div class="memdoc"> 492 493<p>Generate a random element of Fp. </p> 494<dl class="params"><dt>Parameters</dt><dd> 495 <table class="params"> 496 <tr><td class="paramdir">[in]</td><td class="paramname">result</td><td>the random value. </td></tr> 497 <tr><td class="paramdir">[in]</td><td class="paramname">rnd_func</td><td>Random number generator. </td></tr> 498 <tr><td class="paramdir">[in]</td><td class="paramname">rnd_param</td><td>Pass through context data for rnd_func. </td></tr> 499 </table> 500 </dd> 501</dl> 502<dl class="section return"><dt>Returns</dt><dd>A value different from zero (i.e., true) if on success. Zero (i.e., false) otherwise. </dd></dl> 503 504</div> 505</div> 506<a id="a54743809639797b4d4445c221291048b"></a> 507<h2 class="memtitle"><span class="permalink"><a href="#a54743809639797b4d4445c221291048b">◆ </a></span>FpRandNonzero()</h2> 508 509<div class="memitem"> 510<div class="memproto"> 511 <table class="memname"> 512 <tr> 513 <td class="memname">int FpRandNonzero </td> 514 <td>(</td> 515 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 516 <td class="paramname"><em>result</em>, </td> 517 </tr> 518 <tr> 519 <td class="paramkey"></td> 520 <td></td> 521 <td class="paramtype"><a class="el" href="group___epid_common.html#ga6119a2c0323a3fca9e502b24bc378c2c">BitSupplier</a> </td> 522 <td class="paramname"><em>rnd_func</em>, </td> 523 </tr> 524 <tr> 525 <td class="paramkey"></td> 526 <td></td> 527 <td class="paramtype">void * </td> 528 <td class="paramname"><em>rnd_param</em> </td> 529 </tr> 530 <tr> 531 <td></td> 532 <td>)</td> 533 <td></td><td></td> 534 </tr> 535 </table> 536</div><div class="memdoc"> 537 538<p>Generate a non-zero random element of Fp. </p> 539<dl class="params"><dt>Parameters</dt><dd> 540 <table class="params"> 541 <tr><td class="paramdir">[in]</td><td class="paramname">result</td><td>the random value. </td></tr> 542 <tr><td class="paramdir">[in]</td><td class="paramname">rnd_func</td><td>Random number generator. </td></tr> 543 <tr><td class="paramdir">[in]</td><td class="paramname">rnd_param</td><td>Pass through context data for rnd_func. </td></tr> 544 </table> 545 </dd> 546</dl> 547<dl class="section return"><dt>Returns</dt><dd>A value different from zero (i.e., true) if on success. Zero (i.e., false) otherwise. </dd></dl> 548 549</div> 550</div> 551<a id="a23bf42c7024a318970a6b60c02d9a08d"></a> 552<h2 class="memtitle"><span class="permalink"><a href="#a23bf42c7024a318970a6b60c02d9a08d">◆ </a></span>FpSet()</h2> 553 554<div class="memitem"> 555<div class="memproto"> 556 <table class="memname"> 557 <tr> 558 <td class="memname">void FpSet </td> 559 <td>(</td> 560 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 561 <td class="paramname"><em>result</em>, </td> 562 </tr> 563 <tr> 564 <td class="paramkey"></td> 565 <td></td> 566 <td class="paramtype">uint32_t </td> 567 <td class="paramname"><em>in</em> </td> 568 </tr> 569 <tr> 570 <td></td> 571 <td>)</td> 572 <td></td><td></td> 573 </tr> 574 </table> 575</div><div class="memdoc"> 576 577<p>Set a element of Fp's value. </p> 578<dl class="params"><dt>Parameters</dt><dd> 579 <table class="params"> 580 <tr><td class="paramdir">[out]</td><td class="paramname">result</td><td>target. </td></tr> 581 <tr><td class="paramdir">[in]</td><td class="paramname">in</td><td>value to set. </td></tr> 582 </table> 583 </dd> 584</dl> 585 586</div> 587</div> 588<a id="aa9cc9f5e33bba75420b83cb2d49ca280"></a> 589<h2 class="memtitle"><span class="permalink"><a href="#aa9cc9f5e33bba75420b83cb2d49ca280">◆ </a></span>FpSub()</h2> 590 591<div class="memitem"> 592<div class="memproto"> 593 <table class="memname"> 594 <tr> 595 <td class="memname">void FpSub </td> 596 <td>(</td> 597 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> * </td> 598 <td class="paramname"><em>result</em>, </td> 599 </tr> 600 <tr> 601 <td class="paramkey"></td> 602 <td></td> 603 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 604 <td class="paramname"><em>left</em>, </td> 605 </tr> 606 <tr> 607 <td class="paramkey"></td> 608 <td></td> 609 <td class="paramtype"><a class="el" href="struct_fp_elem.html">FpElem</a> const * </td> 610 <td class="paramname"><em>right</em> </td> 611 </tr> 612 <tr> 613 <td></td> 614 <td>)</td> 615 <td></td><td></td> 616 </tr> 617 </table> 618</div><div class="memdoc"> 619 620<p>Subtract two elements of Fp. </p> 621<dl class="params"><dt>Parameters</dt><dd> 622 <table class="params"> 623 <tr><td class="paramdir">[out]</td><td class="paramname">result</td><td>of subtracting left from right. </td></tr> 624 <tr><td class="paramdir">[in]</td><td class="paramname">left</td><td>The operand to be subtracted from. </td></tr> 625 <tr><td class="paramdir">[in]</td><td class="paramname">right</td><td>The operand to subtract. </td></tr> 626 </table> 627 </dd> 628</dl> 629 630</div> 631</div> 632</div><!-- contents --> 633</div><!-- doc-content --> 634<!-- HTML footer for doxygen 1.8.10--> 635<!-- start footer part --> 636<div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> 637 <ul> 638 <li class="navelem"><a class="el" href="dir_12b90d9c027aaf878a834df729679a56.html">epid</a></li><li class="navelem"><a class="el" href="dir_512d3e62841a8535b716ec4cf8b9e950.html">member</a></li><li class="navelem"><a class="el" href="dir_ea12d375fc1eb79df248c0adf953af4f.html">tiny</a></li><li class="navelem"><a class="el" href="dir_5f2fc2cf41db41de2b55e03ffa7a1d16.html">math</a></li><li class="navelem"><a class="el" href="fp_8h.html">fp.h</a></li> 639 <li class="footer"> 640 © 2016-2017 Intel Corporation 641 </li> 642 </ul> 643</div> 644</body> 645</html> 646