openssl_pkcs7_decrypt
(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
openssl_pkcs7_decrypt — Decrypts an S/MIME encrypted message
Description
openssl_pkcs7_decrypt(
string
string
OpenSSLCertificate|string
OpenSSLAsymmetricKey|OpenSSLCertificate|array|string|null
): bool
string
$input_filename,string
$output_filename,OpenSSLCertificate|string
$certificate,OpenSSLAsymmetricKey|OpenSSLCertificate|array|string|null
$private_key = null): bool
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.
Parameters
-
input_filename -
-
output_filename -
The decrypted message is written to the file specified by
output_filename. -
certificate -
-
private_key -
Return Values
Returns true on success or false on failure.
Changelog
| 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.
|
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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