openssl_pkcs7_encrypt() takes the contents of the file named infile
and encrypts them using an RC2 40-bit cipher so that they can only be read by the intended recipients specified by recipcerts
.
openssl_pkcs7_encrypt() takes the contents of the file named infile
and encrypts them using an RC2 40-bit cipher so that they can only be read by the intended recipients specified by recipcerts
.
openssl_pkcs7_encrypt() takes the contents of the file named infile
and encrypts them using an RC2 40-bit cipher so that they can only be read by the intended recipients specified by recipcerts
.
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.
headers
can be either an associative array keyed by header name, or an indexed array, where each element contains a single header line.
flags
can be used to specify options that affect the encoding process - see PKCS7 constants.
One of cipher constants.
Returns TRUE
on success or FALSE
on failure.
<?php // 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; // load key $key = file_get_contents("nighthawk.pem"); // save message to file $fp = fopen("msg.txt", "w"); fwrite($fp, $data); fclose($fp); // encrypt it if (openssl_pkcs7_encrypt("msg.txt", "enc.txt", $key, array("To" => "nighthawk@example.com", // keyed syntax "From: HQ <hq@example.com>", // indexed syntax "Subject" => "Eyes only"))) { // message encrypted - send it! exec(ini_get("sendmail_path") . " < enc.txt"); } ?>
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