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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Decrypts data with private key</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.openssl-pkey-new.html">openssl_pkey_new</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.openssl-private-encrypt.html">openssl_private_encrypt</a></div> <div class="up"><a href="ref.openssl.html">OpenSSL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.openssl-private-decrypt" class="refentry"> <div class="refnamediv"> <h1 class="refname">openssl_private_decrypt</h1> <p class="verinfo">(PHP 4 >= 4.0.6, PHP 5)</p><p class="refpurpose"><span class="refname">openssl_private_decrypt</span> — <span class="dc-title">Decrypts data with private key </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>openssl_private_decrypt</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$data</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter reference">&$decrypted</tt></span> , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <tt class="parameter">$key</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$padding</tt></span> ] )</div> <p class="para rdfs-comment"> <b>openssl_private_decrypt()</b> decrypts <i><tt class="parameter">data</tt></i> that was previous encrypted via <a href="function.openssl-public-encrypt.html" class="function">openssl_public_encrypt()</a> and stores the result into <i><tt class="parameter">decrypted</tt></i>. </p> <p class="para"> You can use this function e.g. to decrypt data which were supposed only to you. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">data</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">decrypted</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">key</tt></i></span> <dd> <p class="para"> <i><tt class="parameter">key</tt></i> must be the private key corresponding that was used to encrypt the data. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">padding</tt></i></span> <dd> <p class="para"> <i><tt class="parameter">padding</tt></i> defaults to <b><tt>OPENSSL_PKCS1_PADDING</tt></b>, but can also be one of <b><tt>OPENSSL_SSLV23_PADDING</tt></b>, <b><tt>OPENSSL_PKCS1_OAEP_PADDING</tt></b>, <b><tt>OPENSSL_NO_PADDING</tt></b>. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.openssl-public-encrypt.html" class="function" rel="rdfs-seeAlso">openssl_public_encrypt()</a></li> <li class="member"><a href="function.openssl-public-decrypt.html" class="function" rel="rdfs-seeAlso">openssl_public_decrypt()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.openssl-pkey-new.html">openssl_pkey_new</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.openssl-private-encrypt.html">openssl_private_encrypt</a></div> <div class="up"><a href="ref.openssl.html">OpenSSL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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