Encrypt files under Solaris 10 with encrypt

The old crypt tool is insecure and should not used anymore. Solaris 10 has a better tool in the OS encrypt.

encrypt -l lists all available algorithms.

dd if=/dev/random of=aes-128bit.key bs=16 count=1 generates a keyfile

encrypt -a aes -k aes-128bit.key -i test.file -o test.file.encrypted

decrypt -a aes -k aes-128bit.key -o bkuplist-20111025.tar -i bkuplist-20111025.tar.enc