Some UNIX shell scripts for using RC5a ===================================== Reinhard Wobst wobst@ifw-dresden.de Feb 2, 1996 Here are some shell scripts for Bourne- and Kornshell under UNIX with which you can use my rc5a program. They are free, and no warranty is implied. Fcrypt, Fdecrypt: encrypt/decrypt one or more files which are given as args. The password needs to be entered for the first file only. On encoding, you must enter the password twice, on decoding, only once. If the decryption password is false, Fdecrypt aborts. The password is stored in CRYPTKEY, the plaintext in a temporary file of mode 600. Hacker attacks are theoretically possible. Fdecrypt is a link to Fcrypt. Ccrypt, Cdecrypt: A number of files and directory trees are stored in a cpio archive which is then encrypted. On success, all files and directories are then removed recursively (besides the archive itself, of course). The password entry is provided by rc5a itself. Cdecrypt is a link to Ccrypt. vix: A simple script to edit encrypted compressed files. Initially, you must generate the file by gzip tmp_; mv tmp_ file The script invokes the editor vi (or $EDITOR, if defined) on a temporary file. If the file is empty when leaving vi, nothing will be changed. The password is stored in CRYPTKEY, the plaintext in a temporary file of mode 600. Hacker attacks are theoretically possible.