RE: [PHP] Emergency help

If I understand correctly, you only want the person that knows the exact name and date to be able to get the file. The easiest way is to put it in a DB and encrypt (MD5 is fine) the key. e.g. take the file name, append the date time so it is one string. encrypt it and store that with the filename. Then on a form (SSL if you want to further encrypt) prompt for the same info. Your PHP cgi will append together, encrypt and compare to the stored value. If it is correct, redirect to the file. Using an SSL allows this to be an encrypted download at a slight cost of speed. --Dave ________________________________ David C.Z. Wacks Manager Internet Strategy -----Original Message----- From: Annie Chou [mailto:zhouzhen7391@hotmail.com] Sent: Monday, January 08, 2001 9:37 AM To: php-dev@lists.php.net Cc: php-general@lists.php.net; php-pear@lists.php.net Subject: [PHP] Emergency help Hi , I am a PHP beginner. I have some problems to need some helps. I created an encrypted file that include some sensitive data. Then I don't want anybody else to decrypt it, the condition is that: The final file caller must the exactly right caller and the created time is the original time at which I encrypted file. For example: File A call B, B call C, I want to get A's filename and created time. If they are match, return the decrypted file. The question is how to get A's filename and created time??? And I don't want anyone see the source code, so I want to add the code as a module or a binary file to PHP. How can I get it??? The task is very emergent. Help!!! If anyone can give me the answer I appreciate very much. Hope to hear you soon. Regards! Annie Zhou Jan 8, 2001