************************************************************************* * * * AMICOM'S FILE SCRAMBLER VERSION 1.5 (1991-03-30) * * * ************************************************************************* Welcome to a new scrambler by the great AMICOM! If you need to protect data against unauthorized access in a truly reliable fashion then this is just what you need! AFS V1.0 features ----------------------------- - 64 bits used as root for code generation - generated code does not repeat even within several megabytes - easy-fashion password keycode - simple password checksum to allow validation - future versions will be able to process current format AFS V1.5 new features -------------------------------- - for comfort, password may now be retried on decode - password entering is now blind - incorrect pw is detected more reliably AFS V1.5 Instructions -------------------------------- * To protect a file enter AFS filename You will be prompted for a password. While you type the password, text is made invisible. You will be asked to retype the password for your security. You may abort this by just pressing . The protected file will be called filename.AFS * To decode a file enter AFS filename.AFS You will be prompted for a password. While you type the password, text is made invisible. If you fail to supply the correct password, a message appears. You may then retry it or abort. To abort press CTRL-C. * you can supply the password in the argument using option PW Example: to protect a file called test with a pw of mess-dos --------- type AFS test -pw mess-dos To enable spaces within the pw, put it within quotation marks. * NEVER FORGET A PASSWORD OF A FILE! Cause nobody on earth will bring it back to you then.... * Be aware of the fact that the password you entered may stay within the machine after you use AFS. In Shells, it MAY BE OBTAINED by just using cursor history. But even in CLI, it may stay somewhere in memory. It is a good idea to enter newshell/endcli after one used AFS in a Shell. * Please note that files coded with AFS v1.5 cannot be decoded with former versions. This is because the password shaker had to be redesigned due to a small bug. AFS V1.5 Error messages --------------------------------- *** Input line too long! You may not enter more than 80 chars as argument or at prompts. *** Missing string parameter Option PW must be given a string parameter. *** Got unexpected argument. Specify only input file name. More than one name has been given. Check for '-' before options. *** Missing input file name. - *** Can't open - DOS error [number]. Hint: 205 means 'file not found'... *** Can't get memory ([number] bytes) for source file! - *** Invalid input file [name]! The input file is somehow unusable. *** Input file corrupt - aborting. There was a disk / file error reading the file. *** Input file is not really an AFS file! - Aborting The file you try to decode has not been scrambled using AFS. *** Error writing outputfile! / Deleting [name] Disk error while writing outputfile. *** Error getting password - aborting. Something went wrong with the PW prompt. *** Password incorrect. The password of the file has not been entered correctly. You may retry the password or press ^C / RETURN to abort. *** Post-decode pw/checksum error, file may be corrupt! The password was not detected invalid. However, either the password IS invalid, or there is an error inside the file. *** You need a more recent version of AFS! The file has been coded with a newer version. It contains new features not supported by yours.