openssl_pkcs7_decrypt

(PHP 4 >= 4.0.6, PHP 5)

openssl_pkcs7_decrypt — Decrypts an S/MIME encrypted message

说明

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

Decrypts the S/MIME encrypted message contained in the file specified by infilename using the certificate and its associated private key specified by recipcert and recipkey.

参数

infilename
outfilename: The decrypted message is written to the file specified by outfilename.
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() example


<?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!";
}
?>

PHP手册 - N: Decrypts an S/MIME encrypted message

用户评论:

oliver at anonsphere dot com (29-Apr-2011 05:16)

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); ?>