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openssl_pkcs7_decrypt

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

openssl_pkcs7_decrypt解密一个 S/MIME 加密的消息

说明

bool openssl_pkcs7_decrypt ( string $infilename , string $outfilename , mixed $recipcert [, mixed $recipkey ] )

使用由 recipcertrecipkey 指定的证书和与之关联的私钥解密 infilename 文件中包含的 S/MIME 加密消息

参数

infilename

outfilename

解密的消息将被存入的文件中,以outfilename命名。

recipcert

recipkey

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE

范例

Example #1 openssl_pkcs7_decrypt() 范例

<?php
// $cert and $key are assumed to contain your personal certificate and private
// key pair, and that you are the recipient of an S/MIME message
$infilename "encrypted.msg";  // this file holds your encrypted message
$outfilename "decrypted.msg"// make sure you can write to this file

if (openssl_pkcs7_decrypt($infilename$outfilename$cert$key)) {
    echo 
"decrypted!";
} else {
    echo 
"failed to decrypt!";
}
?>

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User Contributed Notes 1 note

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1
oliver at anonsphere dot com
7 years ago
If you want to decrypt a received email, keep in mind that you need the full encrypted message including the mime header.

<?php

// Get the full message
$encrypted = imap_fetchmime($stream, $msg_number, "1", FT_UID);
$encrypted .= imap_fetchbody($stream, $msg_number, "1", FT_UID);

// Write the needed temporary files
$infile = tempnam("", "enc");
file_put_contents($infile, $encrypted);
$outfile = tempnam("", "dec");

// The certification stuff
$public = file_get_contents("/path/to/your/cert.pem");
$private = array(file_get_contents("/path/to/your/cert.pem"), "password");

// Ready? Go!
if(openssl_pkcs7_decrypt($infile, $outfile, $public, $private))
{
   
// Decryption successful
   
echo file_get_contents($outfile);
}
else
{
   
// Decryption failed
   
echo "Oh oh! Decryption failed!";
}

// Remove the temp files
@unlink($infile);
@
unlink($outfile);

?>
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