===================================== 
RSA Secure, version 1.0E, August 1995 
===================================== 

This file contains last-minute information that is not 
contained in the Quickref files (QUICKREF.TXT and 
QUICKREF.WRI, both of which contain the same information), 
or that we feel is important to mention.  The printed 
User Guide is only available with the commercial product, 
which sells for US$129 for a single-user license.  There 
is graduated pricing for larger site licenses.


THIS IS THE EXPORTABLE VERSION, LEGAL TO USE OUTSIDE THE 
USA AND CANADA

This version of RSA Secure has been tailored to meet 
United States regulations for the export of cryptographic 
software.  This means that the level of encryption has 
been reduced from 80-bit RC4 and 1024-bit RSA keys to 
40-bit RC4 and 512-bit RSA keys.  The stronger encryption 
is available only in the commercial version that is sold 
in the USA and Canada.  The commercial version that is
sold for use outside of the USA and Canada uses 40-bit RC4 
and 512-bit RSA keys, as this product does.  Both 
commercial versions come with a printed User Guide, 
a printed Quick Reference Guide, and full product support.


THIS IS AN EVALUATION COPY, NOT "SHAREWARE"

RSA Data Security, Inc. is making this version of RSA 
Secure available for evaluation only.  It is not intended 
for long-term use or resale.  After a period of 30 days 
from the installation of the software, every time an RSA 
Secure function is called, a reminder screen will appear 
to provide you with contact information for purchasing a 
licensed version.  All RSA Secure functionality will 
remain intact, however.


COMPATIBLE UPGRADE POSSIBLE

When you decide to upgrade from the evaluation copy of the 
software to the commercial version, we recommend that you: 

1) Make a backup of your USERPREF.!!! file on a separate 
disk, and store it carefully

2) Decrypt the files you encrypted with this evaluation 
version of RSA Secure

3) Deinstall the evaluation version of the software and 
install the new production software.  

The USERPREF.!!! file you saved can be used in an 
emergency to enable you to access any files you may have 
missed decrypting.  RSA will provide detailed instructions 
on request for doing an upgrade.


COMPATIBILITY

RSA Secure has been tested and is certified to work with:
- Microsoft Windows 3.1 or better
- Microsoft Windows for Workgroups 3.1 or better
- Microsoft memory-management software, e.g., EMM386.EXE
  and HIMEM.SYS (other memory management software has
  been tried and seems to work fine, but has not been
  tested extensively)
- Program Manager as the Windows shell (again, other Windows
  shells have been tried successfully, but not tested
  extensively)

Minimum configuration includes:
- Intel 80286 microprocessor
- 2MB of RAM
- VGA video

Recommended configuration includes:
- Intel 80386/33 MHz microprocessor
- 4MB of RAM or more
- Two-button mouse


INCOMPATIBILITY

RSA Secure DOES NOT work with Windows NT.  If you use RSA 
Secure and then install Windows NT, you should decrypt all 
files encrypted with RSA Secure before the installation.

RSA Secure is not certified to work with Windows 95, but 
initial tests indicate that it seems to work successfully 
under File Manager running in Windows 95, and with files 
that have names no longer than eight characters and file 
extensions no longer than three characters.  It does NOT 
support long file names.  RSA is working on versions of 
RSA Secure for both Windows 95 and Windows NT, and will 
announce their availability when they are complete.


BEFORE YOU INSTALL

You will be creating a customized copy of RSA Secure for 
your organization, which will initialize its disks. We 
recommend that you make disk copies of the Master disks 
that you receive, and do all installation from the disk 
copies, not the original disks.  You will need two 
formatted disks for this, and we suggest you label them as 
your organization's customized masters.

In addition, you will be asked for backup disks to back up 
the secret key configuration information.  You will need 
at least one formatted backup disk for the Emergency 
Access installation, and another for each User 
installation.

If you choose to have multiple Trustees for the Emergency 
Access key, you will need a formatted disk for each 
Trustee.


INSTALLATION

Full instructions for the installation and use of RSA 
Secure appear in the "QUICKREF" files that are a part of 
this download.  There is a text file and a Windows Write 
file, both of which contain the same information.


REMOVING RSA SECURE

Both the Emergency Access disk and the User Setup disk 
contain the program DINSTALL.EXE.  Be certain to decrypt 
all files that were encrypted with RSA Secure before 
running this program.  It will remove RSA Secure, and will 
also remove any references to RSA Secure that were added 
to your WIN.INI and WINFILE.INI files.


PROBLEMS, TYPOS, AND SOLUTIONS

- RSA Secure cannot encrypt files that are on a read-only  
compact disk.  Attempting to do so may corrupt File 
Manager.

- Using disk caching software such as Smartdrive can 
cause  problems if write caching is enabled.  Exiting 
Windows and seeing the DOS prompt does not mean that your 
computer is done working.  Wait for the hard disk to stop 
writing to disk before turning off your computer.  In the 
worst case, you can corrupt one of your files.  In any 
case, you will not have encrypted all of the files on your 
AutoCrypt list.  This is primarily a problem with MS DOS 
5.x and 6.0, since the default  installation with those 
versions installs write caching.  With MS DOS 6.2 the 
default installation no longer does this.  The solution is 
to dump the cache to disk after exiting Windows, by typing 
"smartdrv /c" -- or to install Smartdrive without write 
caching, by appending " /x" to the smartdrv command in 
your AUTOEXEC.BAT file.  

- Encrypting files that use an array of interlocking 
resources can result in problems or confusion.  While RSA 
Secure will not encrypt .dll or .ini files, some of your 
software may use other file extensions that are vital to 
its proper operation and which you may choose to encrypt.  
The types of problems you can run into range from being 
easily fixed to being potentially serious.  An "easily 
fixed" example is being unable to see the graphics in your 
word processing documents (if you encrypted the graphics 
files, did not decrypt them, and they are referenced in 
the document text).  The solution here is to decrypt the 
graphics files and continue.  A "potentially serious" 
example is often contained in electronic mail programs.  
Many such programs look for certain default files when 
they load, such as an address book file.  If that file is 
not found, the program creates a default file that is 
empty, thus giving you the impression that you have lost 
your address book.  The solution here is to close the mail 
program, decrypt the file that contains your address book, 
and when asked if you want to overwrite the existing file, 
choose "yes."  

- Encrypting shared files can cause problems.  Since RSA 
Secure enables you to encrypt files on any drive on which 
you have read, write, create, and modify rights, this 
means that you can encrypt files that are on your network 
drives.  If you encrypt a file that is accessed by other 
users of your network, you have made it completely 
unavailable to them.  While your organization can use the 
Emergency Access key held by your trustees to decrypt the 
file, we suggest that you choose carefully when you 
encrypt network files.

- If you use File Manager as your Windows shell instead of 
Program Manager, and choose to decrypt your files on 
starting Windows, everything will work just fine except 
that the Decrypting dialog box will display nothing while 
your files are being decrypted.

- Files created on the Macintosh and encrypted with RSA 
Secure for the Macintosh may contain more than what can be 
seen in Windows.  When such files are encrypted on the 
Macintosh and decrypted under Windows, those parts called 
"resources" are ignored.  

=================================================================
Copyright (c) 1995, RSA Data Security, Inc.  All Rights Reserved.
100 Marine Parkway, Suite 500
Redwood City, CA  94065-1031
  Telephone:  415-595-8782
  Facsimile:  415-595-1873
  Internet:  info@rsa.com
  World Wide Web:  http://www.rsa.com
=================================================================

