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 The validation data for VALIDATE.COM 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.