note 98173 deleted from function.openssl-pkcs7-encrypt by visualmind

Note Submitter: Marcus Carey 

----

<?php
	SendEncryptedMail();
?>

<?php
function SendEncryptedMail()
{
	$ret = 0;
	$cert = "yourpubliccert.crt";
	$infile = "filetoencrypt.txt";
	
	$message = "";  // No message needed. It will be appended to the end of the headers.
	$to = "[email protected]";
	$subject = "Encrypted Message";

	$domain = "mailhost.com";
	$maildate = MailDate();
	$messageid = MessageID($domain,$maildate);
	
	$headers = 'To: <[email protected]>' . "\r\n";
	$headers .= 'From: <[email protected]>' . "\r\n";
	$headers .= $maildate;
	$headers .= $messageid;	
	
	
	$contenttype = "Content-Type: text/plain\r\n\r\n";  //The Content-Type: will be encrypted.

	$pkcs7 = PKCS7_encrypt($cert,$infile,$contenttype);
	$headers .= $pkcs7;  // Append the encrypted data to the end of the headers.

	$ret = mail($to, $subject, $message , $headers);
	if($ret)
		echo 'Mail sent.';
	else
		echo 'Mail send failed.';
	
	
}
?>

<?php

function PKCS7_encrypt($Cert,$Infile,$ContentType){
	
	$clearfile = tempnam("temp","email") . ".txt";
	$outfile = $clearfile . ".enc";
	$clearfile .= ".txt";
	$headers = array();  // No headers needed.
	
	
	$pubkey = file_get_contents($Cert);
	
	$txt = file_get_contents($Infile);

	$data = "";
	$message =  $ContentType . $txt;  // Create the message.  The ContentType: header must be the first line of the encrypted data.
	
	$len = strlen($message);
	$fh = fopen($clearfile,"w");
	fwrite($fh,$message,$len);
	fclose($fh);
																		
	$ret = openssl_pkcs7_encrypt($clearfile, $outfile, $pubkey, $headers);  	
	if($ret){																																		
		$data = file_get_contents($outfile);		
	}else{
		while ($msg = openssl_error_string())
		    echo $msg . "<br />\n";
	}	

	return $data;
}

?>

<?php
function MailDate()
{
	// Set your timezone 
	date_default_timezone_set('America/Los_Angeles');
	$today = 'Date: ' . date("D, j M Y G:i:s O") . "\r\n";
	return $today;
}
?> 

<?php
function MessageID($domain, $maildate)
{
	$id = md5($maildate);
	$messageid = 'Message-ID: ' . '<' . $id . '@' . $domain . '>' . "\r\n";
	return $messageid;
}
?>