FSecure (PaceSoft)

File Format
Name	FSecure (PaceSoft)
Ontology	Electronic File Formats Security FSecure (PaceSoft)
Released	≤1992

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).

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.