openssl_pkcs7_encrypt

(PHP 4 >= 4.0.6)

openssl_pkcs7_encrypt -- Encrypt an S/MIME message

Description

bool openssl_pkcs7_encrypt ( string infilename, string outfilename, mixed recipcerts, array headers [, long flags])

Ostrze¿enie

Ta funkcja jest w stadium EKSPERYMENTALNYM. Oznacza to, że zachowanie funkcji, jej nazwa, w zasadzie wszystko udokumentowane tutaj może zostać zmienione w przyszłych wersjach PHP bez wcześniejszego uprzedzenia. Używaj tej funkcji na własne ryzyko.

openssl_pkcs7_encrypt() takes the contents of the file named infilename and encrypts them using an RC2 40-bit cipher so that they can only be read by the intended recipients specified by recipcerts, which is either a lone X.509 certificate, or an array of X.509 certificates. headers is an array of headers that will be prepended to the data after it has been encrypted. flags can be used to specify options that affect the encoding process - see PKCS7 constants. headers can be either an associative array keyed by header name, or an indexed array, where each element contains a single header line.

Przykład 1. openssl_pkcs7_encrypt() example

// the message you want to encrypt and send to your secret agent
// in the field, known as nighthawk.  You have his certificate
// in the file nighthawk.pem
$data = <<<EOD
Nighthawk,

Top secret, for your eyes only!

The enemy is closing in! Meet me at the cafe at 8.30am
to collect your forged passport!

HQ
EOD;
// save message to file
$fp = fopen("msg.txt", "w");
fwrite($fp, $data);
fclose($fp);
// encrypt it
if (openssl_pkcs7_encrypt("msg.txt", "enc.txt", "nighthawk.pem",
    array("To" => "nighthawk@agent.com", // keyed syntax
          "From: HQ <hq@cia.com>", // indexed syntax
          "Subject" => "Eyes only")))
{
    // message encrypted - send it!
    exec(ini_get("sendmail_path") . " < enc.txt");
}

Notatka: This function was added in 4.0.6.