68 lines
2.9 KiB
HTML
68 lines
2.9 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8"/>
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<style>
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table.head, table.foot { width: 100%; }
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td.head-rtitle, td.foot-os { text-align: right; }
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td.head-vol { text-align: center; }
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div.Pp { margin: 1ex 0ex; }
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</style>
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<link rel="stylesheet" href="style.css" type="text/css" media="all"/>
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<title>CRYPTO_MEMCMP(3MONOCYPHER)</title>
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</head>
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<body>
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<table class="head">
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<tr>
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<td class="head-ltitle">CRYPTO_MEMCMP(3MONOCYPHER)</td>
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<td class="head-vol">3MONOCYPHER</td>
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<td class="head-rtitle">CRYPTO_MEMCMP(3MONOCYPHER)</td>
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</tr>
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</table>
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<div class="manual-text">
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<h1 class="Sh" title="Sh" id="NAME"><a class="selflink" href="#NAME">NAME</a></h1>
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<b class="Nm" title="Nm">crypto_memcmp</b>,
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<b class="Nm" title="Nm">crypto_zerocmp</b> —
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<span class="Nd" title="Nd">deprecated timing-safe data comparisons</span>
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<h1 class="Sh" title="Sh" id="SYNOPSIS"><a class="selflink" href="#SYNOPSIS">SYNOPSIS</a></h1>
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<b class="In" title="In">#include
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<<a class="In" title="In">monocypher.h</a>></b>
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<div class="Pp"></div>
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<var class="Ft" title="Ft">int</var>
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<br/>
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<b class="Fn" title="Fn">crypto_memcmp</b>(<var class="Fa" title="Fa">const
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uint8_t *p1</var>, <var class="Fa" title="Fa">const uint8_t *p2</var>,
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<var class="Fa" title="Fa">size_t n</var>);
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<div class="Pp"></div>
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<var class="Ft" title="Ft">int</var>
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<br/>
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<b class="Fn" title="Fn">crypto_zerocmp</b>(<var class="Fa" title="Fa">const
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uint8_t *p</var>, <var class="Fa" title="Fa">size_t n</var>);
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<h1 class="Sh" title="Sh" id="DESCRIPTION"><a class="selflink" href="#DESCRIPTION">DESCRIPTION</a></h1>
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<b class="Fn" title="Fn">crypto_memcmp</b>() and
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<b class="Fn" title="Fn">crypto_zerocmp</b>() were meant to provide
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timing-safe data comparison. They have been removed from Monocypher because
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they could not uphold those guarantees when compiled with
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<b class="Fl" title="Fl">-O3</b> on common compilers. Use
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<a class="Xr" title="Xr" href="crypto_verify16.html">crypto_verify16(3monocypher)</a>,
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<a class="Xr" title="Xr" href="crypto_verify32.html">crypto_verify32(3monocypher)</a>
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and
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<a class="Xr" title="Xr" href="crypto_verify64.html">crypto_verify64(3monocypher)</a>
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instead.
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<h1 class="Sh" title="Sh" id="SEE_ALSO"><a class="selflink" href="#SEE_ALSO">SEE
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ALSO</a></h1>
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<a class="Xr" title="Xr" href="crypto_verify16.html">crypto_verify16(3monocypher)</a>,
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<a class="Xr" title="Xr" href="intro.html">intro(3monocypher)</a>
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<h1 class="Sh" title="Sh" id="HISTORY"><a class="selflink" href="#HISTORY">HISTORY</a></h1>
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The <b class="Fn" title="Fn">crypto_memcmp</b>() function first appeared in
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Monocypher 0.1. <b class="Fn" title="Fn">crypto_zerocmp</b>() was introduced
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in Monocypher 0.6. These functions were removed in Monocypher 1.1.0.</div>
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<table class="foot">
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<tr>
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<td class="foot-date">December 28, 2017</td>
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<td class="foot-os">Linux 4.15.0-65-generic</td>
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</tr>
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</table>
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</body>
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</html>
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