#3 Support stdin and stdout

[Evgeny Potashnik]

It would be great if ncrypt could read from stdin and write to stdout, similar to how tar and bzip work. Eg. say I want to compress AND encrypt some files I could do it in one go (faster and using less disk space) by running something like:

tar jc myfiles |ncrypt -e >myfiles.tar.bz2.encrypted

Same for decrypting.