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<!DOCTYPE html>
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  <meta charset="utf-8"/>
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  <title>CRYPTO_MEMCMP(3MONOCYPHER)</title>
</head>
<body>
<table class="head">
  <tr>
    <td class="head-ltitle">CRYPTO_MEMCMP(3MONOCYPHER)</td>
    <td class="head-vol">3MONOCYPHER</td>
    <td class="head-rtitle">CRYPTO_MEMCMP(3MONOCYPHER)</td>
  </tr>
</table>
<div class="manual-text">
<h1 class="Sh" title="Sh" id="NAME"><a class="selflink" href="#NAME">NAME</a></h1>
<b class="Nm" title="Nm">crypto_memcmp</b>,
  <b class="Nm" title="Nm">crypto_zerocmp</b> &#x2014;
  <span class="Nd" title="Nd">deprecated timing-safe data comparisons</span>
<h1 class="Sh" title="Sh" id="SYNOPSIS"><a class="selflink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<b class="In" title="In">#include
  &lt;<a class="In" title="In">monocypher.h</a>&gt;</b>
<div class="Pp"></div>
<var class="Ft" title="Ft">int</var>
<br/>
<b class="Fn" title="Fn">crypto_memcmp</b>(<var class="Fa" title="Fa">const
  uint8_t *p1</var>, <var class="Fa" title="Fa">const uint8_t *p2</var>,
  <var class="Fa" title="Fa">size_t n</var>);
<div class="Pp"></div>
<var class="Ft" title="Ft">int</var>
<br/>
<b class="Fn" title="Fn">crypto_zerocmp</b>(<var class="Fa" title="Fa">const
  uint8_t *p</var>, <var class="Fa" title="Fa">size_t n</var>);
<h1 class="Sh" title="Sh" id="DESCRIPTION"><a class="selflink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<b class="Fn" title="Fn">crypto_memcmp</b>() and
  <b class="Fn" title="Fn">crypto_zerocmp</b>() were meant to provide
  timing-safe data comparison. They have been removed from Monocypher because
  they could not uphold those guarantees when compiled with
  <b class="Fl" title="Fl">-O3</b> on common compilers. Use
  <a class="Xr" title="Xr" href="crypto_verify16.html">crypto_verify16(3monocypher)</a>,
  <a class="Xr" title="Xr" href="crypto_verify32.html">crypto_verify32(3monocypher)</a>
  and
  <a class="Xr" title="Xr" href="crypto_verify64.html">crypto_verify64(3monocypher)</a>
  instead.
<h1 class="Sh" title="Sh" id="SEE_ALSO"><a class="selflink" href="#SEE_ALSO">SEE
  ALSO</a></h1>
<a class="Xr" title="Xr" href="crypto_verify16.html">crypto_verify16(3monocypher)</a>,
  <a class="Xr" title="Xr" href="intro.html">intro(3monocypher)</a>
<h1 class="Sh" title="Sh" id="HISTORY"><a class="selflink" href="#HISTORY">HISTORY</a></h1>
The <b class="Fn" title="Fn">crypto_memcmp</b>() function first appeared in
  Monocypher 0.1. <b class="Fn" title="Fn">crypto_zerocmp</b>() was introduced
  in Monocypher 0.6. These functions were removed in Monocypher 1.1.0.</div>
<table class="foot">
  <tr>
    <td class="foot-date">December 28, 2017</td>
    <td class="foot-os">Linux 4.15.0-65-generic</td>
  </tr>
</table>
</body>
</html>