(PHP 4 >= 4.0.6, PHP 5)
openssl_pkcs7_decrypt — Decrypts an S/MIME encrypted message
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 .
The decrypted message is written to the file specified by outfilename .
Returns TRUE on success or FALSE on failure.
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!";
}
?>