FSecure (PaceSoft)
From Just Solve the File Format Problem
FSecure is a digital signature and tamper protection system developed by PaceSoft.
It is presumably unrelated to F-Secure corporation, which didn't use that name until 1999.
Signatures can be validated using a DOS utility named FileTest.
See also SDN (SDN Project).
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Format details
Little is known about the format, but it appears to work by appending some (256?) bytes to the end of the file.
Software
- FileTest v1.00 (1992-09)
- FileTest v1.02
- FileTest v1.03: DP TOOL CLUB CD ASCQ → CD_ASCQ_14_0694.iso → VRAC/FTST103.ZIP
- SDNSeal Test v1.03 (a.k.a. SDNTest -- a special version of FileTest)
Sample files
- FILETST1.ZIP → FILETEST.EXE
- See SDN (SDN Project)#Sample files, ARJ format.
Links
- fido1004.txt → "SDN Changing Compression and Security" - Some announcements about using FSecure and FileTest with SDN/ARJ files.
