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

From: Date: Mon, 31 May 2010 12:08:10 +0000
Subject: note 98173 deleted from function.openssl-pkcs7-encrypt by visualmind
References: 1  Groups: php.notes 
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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 = "recipient@domain.com"; $subject = "Encrypted Message"; $domain = "mailhost.com"; $maildate = MailDate(); $messageid = MessageID($domain,$maildate); $headers = 'To: <recipient@domain.com>' . "\r\n"; $headers .= 'From: <you@.mailhost.com>' . "\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; } ?>

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