(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
openssl_pkcs7_decrypt — Decrypts an S/MIME encrypted message
$input_filename,$output_filename,$certificate,$private_key = null
Decrypts the S/MIME encrypted message contained in the file specified by
input_filename using the certificate and its
associated private key specified by certificate and
private_key.
input_filename
output_filename
The decrypted message is written to the file specified by
output_filename.
certificate
private_key
| Version | Description |
|---|---|
| 8.0.0 |
private_key accepts an OpenSSLAsymmetricKey
or OpenSSLCertificate instance now;
previously, a resource of type OpenSSL key or OpenSSL X.509 CSR
was accepted.
|
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!";
}
?>