Everybody stand back
From xkcd
Archive for April, 2008
DAA (Direct Access Archive)
Direct Access Archive, or DAA, is a proprietary file format developed by PowerISO Computing for disk image files. The format supports features such as compression, password protection, and splitting to multiple volumes. Because of its proprietary nature, popular disk image mounting programs currently do not support the mounting of DAA images.
Currently there is no published information about the format. Among mainstream applications, it can be opened or converted with PowerISO and daa2iso. Various free open source packages are also available to convert DAA to ISO images.
poweriso convert file.daa -o file.iso
sudo mount -t iso9660 -o loop file.iso /mnt
GPG Cheat Sheet
Generate Key
gpg --gen-key
Upload key
gpg --send-keys --keyserver keyserver.ubuntu.com DEADBEEF
Download key
gpg --keyserver keyserver.ubuntu.com --recv-keys DEADBEEF
Export Public Key
gpg -ao something-public.key --export DEADBEEF
Export Private Key
gpg -a --export-secret-keys DEADBEEF | gpg -aco some-private.key.gpg
Import Public Key
gpg --import something-public.key
Import Private Key
gpg --decrypt some-private.key.gpg |gpg --import
Sign Key
gpg --sign-key ABABABAB
gpg --default-key DEADBEEF --sign-key ABABABAB
gpg --default-key DEADBEEF --sign-key ABABABAB
Sign a file
gpg --default-key DEADBEEF --sign --detach-sign DumbSlides.odp
Verify signature file
gpg DumbSlides.sig
Sign a clear text
gpg --clearsign textfile.txt
gpg --default-key DEADBEEF --clearsign textfile.txt
gpg --default-key DEADBEEF --clearsign textfile.txt
Create ASCII Armoured key file
gpg --export -a DEADBEEF > mykey.asc
Encrypt a file
# -s sign the file with your key
# -e encrypt the file with a password
# -c encrypt with a symmetric cipher using a passphrase.
gpg --armor --recipient DEADBEEF --encrypt --sign file
Decrypt
gpg -d file.gpg
