[32]</var>, <var class="Fa" title="Fa">const uint8_t
  your_secret_key[32]</var>);
<h1 class="Sh" title="Sh" id="DESCRIPTION"><a class="selflink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<b class="Fn" title="Fn">crypto_x25519</b>() computes a shared secret with
  <var class="Fa" title="Fa">your_secret_key</var> and
  <var class="Fa" title="Fa">their_public_key</var>. It is a low-level
  primitive. Use
  <a class="Xr" title="Xr"            href="../crypto_key_exchange.html">crypto_key_exchange(3monocypher)</