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COPWRITE.DOC
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1996-10-20
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3KB
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94 lines
╔════════════════════════════╗
║ Copwrite v1.0 ║
╠════════════════════════════╣
║ COP card EEPROM Writer ║
╚════════════════════════════╝
IMPORTANT:
----------
THIS PROGRAM HAS BEEN WRITTEN FOR EDUCATIONAL PURPOSES ONLY.
No responsibilty will be taken by the author for misuse of this program.
The author does not guarantee the safety of the code and is not liable for
any damage the use of this program may cause - use at your own risk.
REMEMBER:
---------
This software must not be used in order to view channels for which a regular
subscription would be available in your country, unless you have already such
a subscription and want to use this software only for educational purposes.
THE AUTHOR OR PROVIDER OF THIS SOFTWARE TAKES NO RESPONSIBILITY FOR THE
LEGALITY OF USING AND DISTRIBUTING THIS SOFTWARE.
Introduction
------------
Copwrite will update the EEPROM on any COP card. This is only possible on
preprogrammed COP cards. The data for the EEPROM is stored in an ASCII hex
file for use on similar COP cards.
The format of the datafile is such that key changes can be made by the user.
It is necessary to locate the key_id and storage address, as well as the
encryption for the COP version. The technique for COP encryption is to take
the 7 byte plaintext key and apply through DES and a further algorithm for
the COP version. As you might guess, this is not an easy process!
For safety reasons, it is not possible to update datafiles from versions other
than the COP card inserted. It is necessary to use the same version of
datafile for the COP card. Do not attempt to change the version of the
datafile to match the COP as the encryption is different and viewing will no
longer be available with the COP card until a relevant version of datafile is
loaded.
I would prefer datafiles from various COP cards for educational purposes. If
you discover a COP version not autodetected by the program, please email me
the datafile.
Please - Use Copread on your COP card before Copwrite !
COPWRITE.EXE: usage for v1.0
--------------------------------
Syntax:
COPWRITE [<com>] [wa<n>] [wb<n>] [r<n>] [b<n>]
<com> select port use com port <com>
wa<n> reset delay specify in uS
wb<n> byte delay specify in uS
r<n> reset baud reset baud rate, specify in bps
b<n> card baud operating baud rate, specify in bps
i<n> inputfile file holding EEPROM data
defaults are:
com: 1
wa: 45000
wb: 1000
r: 9600
b: 9600
The program can be run successfully on a Pheonix style interface and also a
SmartMouse interface. The Smartcard Reader/Writer interface is autodetected
by the program. A suitable type interface is available from Interesting
Devices, full details at :
http://users.aol.com/devices232
The program can be terminated at any time by pressing the ESC key.
If there are SW1/SW2 timeouts, it may be necessary to alter the wb<n> byte
delay. Raising the delay to say 3000uS is usually satisfactory in this case.
Copwrite Version History
------------------------
1.0: . 20.10.96
. First public release.