Usage
Tips
You'll find a description of what AxCrypt is made for, and some specific situations where others have found AxCrypt useful, and you might too: Target use - what is AxCrypt intended for? Personal Privacy... ...but the file name reveals information too! Making archives of encrypted files Backups PIN's and passwords Confidential data in public repositories Networks Program (.exe) protection Pre-distribution Confidential e-mail Hide .AXX Extension
Target use AxCrypt will, within the limits of your pass phrase, keep remotely stored documents secure. For documents on your local hard-disk there are many caveats not due to the security of the encryption as such. Please see the section on local PC security below. It is also suitable for use by other programmers and system administrators, as it provides a command-line interface easy to use from any other programming language on the Windows platform that can execute another program, including .bat files. Personal Privacy... Just right-click any document file and encrypt it with AxCrypt. Viewing and opening for update is just as convenient as before encryption due to AxCrypt's automatic decryption/open/re-encryption function. If you use a Key-File on a diskette or USB thumb drive, your files will be encrypted to the highest level of protection as long the Key-File is kept secret. ...but the file name reveals
information too! Making
archives of encrypted files So, simply create your .zip-file, put whatever you want to be there in it, and then encrypt it with AxCrypt. AxCrypt can now open the archive in WinZip or in a Compressed Folder view, and you can work with the archive as usual, including opening, editing, adding and deleting individual files. When you're done with the archive, AxCrypt will automatically re-encrypt it, like it will with any type of file, and wipe it's temporary files. Backups Store a copy of AxDecrypt with your backup, and you are independent of an AxCrypt installation when you need to recover. PIN's and passwords There are many special purpose password managers out there, some really good, but why bother? Use a regular text file with notepad, or download this Excel-template. (Right-click the link and choose "Save Target As...") Encrypt the file with AxCrypt. You can then store your passwords conveniently and safely. (Only use the Excel-template, if you have Windows 2000 or later and follow the advice on using EFS on your temporary directory due to Excel's use of temporary files). If you also follow the advice above on renaming the file, no hint about the actual contents remain visible in your computer. Further notes: Notepad does not create any temporary files and AxCrypt will properly wipe it's traces, so this is every bit as secure as most password managers. Some managers will attempt to lock memory, or encrypt the data in memory, to keep it out of the paging file, which is even better of course. If this is a concern or not depends on your level of paranoia. Confidential data in public
repositories Networks The data also travels the network in the clear, easily sniffable by anyone on the same network segment. Backups are also seldom encrypted, so anyone gaining access to a backup-tape has potential access, regardless of the access controls enforced on the server. All of these cases are handled when the data is encrypted with AxCrypt - it is never seen on the network, the server or backups in the clear. Program
(.exe) protection Pre-distribution Use AxCrypt to encrypt the document, for example the PDF of the financial report. You can then distribute it by any means, hours and days ahead of time, the information is out there but unreadable. When it's time to disclose, simply publish the key used. This reduces peak server loads and eases distribution. Confidential e-mail The other party will now be able to open and edit the message directly, respond etc, and then reply and attach the automatically re-encrypted file in a quick and convenient manner. This is not quite as easy as regular mail - but not far from it - and most approaches instead require encrypting and decrypting using the clipboard with cut and paste. Hide
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