Eventually I came around to write a bulletproof encryption system.
-rw-r--r-- 34863 addrutil.c
-rwxr-xr-x 5568 gpgmlrobot
-rwxr-xr-x 3674 log.pl
-rw-r--r-- 3018 mkdiff
-rw-r--r-- 1943 rot13.c