openssl_pkcs7_decrypt

(PHP 4 >= 4.0.6)

openssl_pkcs7_decrypt -- Decrypts an S/MIME encrypted message

Description

bool openssl_pkcs7_decrypt ( string infilename, string outfilename, mixed recipcert, mixed recipkey)

Warning

This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change in a future release of PHP without notice. Be warned and use this function at your own risk.

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

The decrypted message is output to the file specified by outfilename

Example 1. openssl_pkcs7_decrypt() example

// $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!";

Note: This function was added in 4.0.6.