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?>
<div id="function.sodium-crypto-sign-open" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">sodium_crypto_sign_open</h1>
  <p class="verinfo">(PHP 7 &gt;= 7.2.0, PHP 8)</p><p class="refpurpose"><span class="refname">sodium_crypto_sign_open</span> &mdash; <span class="dc-title">Verifica que el mensaje firmado posee una firma válida</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.sodium-crypto-sign-open-description">
  <h3 class="title">Descripción</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>sodium_crypto_sign_open</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$signed_message</code></span>, <span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$public_key</code></span>): <span class="type"><span class="type"><a href="language.types.string.php" class="type string">string</a></span>|<span class="type"><a href="language.types.singleton.php" class="type false">false</a></span></span></div>

  <p class="simpara">
   Verifica la firma adjunta a un mensaje y devuelve el mensaje
  </p>

 </div>


 <div class="refsect1 parameters" id="refsect1-function.sodium-crypto-sign-open-parameters">
  <h3 class="title">Parámetros</h3>
  <dl>
   
    <dt><code class="parameter">signed_message</code></dt>
    <dd>
     <span class="simpara">
      Un mensaje firmado con <span class="function"><a href="function.sodium-crypto-sign.php" class="function">sodium_crypto_sign()</a></span>
     </span>
    </dd>
   
   
    <dt><code class="parameter">public_key</code></dt>
    <dd>
     <span class="simpara">
      Una clave pública Ed25519
     </span>
    </dd>
   
  </dl>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.sodium-crypto-sign-open-returnvalues">
  <h3 class="title">Valores devueltos</h3>
  <p class="simpara">
   Devuelve el mensaje firmado original en caso de éxito,  o <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong> si ocurre un error.
  </p>
 </div>


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