openssl_pkcs7_decrypt
(PHP 4 >= 4.0.6, PHP 5, PHP 7)
openssl_pkcs7_decrypt — Decrypts an S/MIME encrypted message
Description
openssl_pkcs7_decrypt ( string $infilename , string $outfilename , mixed $recipcert [, mixed $recipkey ] ) : bool
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.
Parameters
-
infilename -
outfilename -
The decrypted message is written to the file specified by
outfilename. -
recipcert -
recipkey
Return Values
Returns true on success or false on failure.
Examples
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!";
}
?>
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https://www.php.net/manual/en/function.openssl-pkcs7-decrypt.php