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1990-12-13
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VALIDATE Version 0.3
From McAfee Associates
(408) 988-3832
VALIDATE is a file-authentication program that may be used to
check other programs for signs of tampering. VALIDATE uses two
discrete methods to generate Cyclic Redundancy Checks (CRC's), which
are then displayed for the user to compare against the known value
for the program(s) validated. The known validation data can be
published by the author of the program or be obtained from a trusted
information database. The dual CRC checking provides a high degree
of security.
The Computer Virus Industry Association (CVIA) provides an online
database of validation values for shareware authors at no cost. You
are encouraged to call the CVIA's BBS at (408) 988-4004 to access
current validation data for McAfee Associates' VIRUSCAN, California
Software Concepts' SHEZ, Vern Berg's LIST, and other shareware
programs.
To confirm that a program is in its original, untampered state,
run the VALIDATE program on it, record the validation data produced,
and compare it against the record in the online database. If they
match, than it is highly improbable (less than one in sixty-four
quadrilion) that the program has been modified.
To run VALIDATE, type:
VALIDATE d:\path\filename.ext
The VALIDATE program will then display the following information:
Size: (#/bytes)
Date: (file creation date)
File Authentication
Check Method 1: (a four digit CRC)
Check Method 2: (a four digit CRC)
The VALIDATE program may be copied and distributed at no charge as long
as it is distributed whole and intact and unmodified in any way, along
with this file. Please report virus infections and reports of program
tampering to:
Computer Virus Industry Association
4423 Cheeney Street
Santa Clara, CA 95054-0253
USA
(408) 727-4559 telephone answering machine 24hrs.
The validation data for VALIDATE is:
WITH CRC WITHOUT
CHECKING CHECKING
Size: 6495 6485
Date: 10-31-1989 10-31-1989
File Authentication
Check Method 1: 4637 CB21
Check Method 2: 1214 13B7
If you have an older version of VALIDATE, it may be ten (10) bytes
shorter. This is because it was not processed by VIRUSCAN's
CRC-checking feature, added in Version 66 of VIRUSCAN. The validation
code can be removed from VALIDATE.COM by running VIRUSCAN against it
with the /RV Remove Validation option. However, this is not recommended.