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docs: quickstart improvements

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Jonas Borgström 2014-04-06 14:03:14 +02:00
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docs/quickstart.rst
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@ -16,18 +16,29 @@ A step by step example
$ attic init /somewhere/my-repository.attic $ attic init /somewhere/my-repository.attic
2. Backup the ``~/src`` and ``~/Documents`` directories into an archive called 2. Backup the ``~/src`` and ``~/Documents`` directories into an archive called
*first-backup*:: *Monday*::
$ attic create -v /somwhere/my-repository.attic::Monday ~/src ~/Documents $ attic create -v /somwhere/my-repository.attic::Monday ~/src ~/Documents
3. The next day create a new archive called *second-backup*:: 3. The next day create a new archive called *Tuesday*::
$ attic create -v --stats /somwhere/my-repository.attic::Tuesday ~/src ~/Documents $ attic create -v --stats /somwhere/my-repository.attic::Tuesday ~/src ~/Documents
This backup will be a lot quicker and a lot smaller since only new never This backup will be a lot quicker and a lot smaller since only new never
before seen data is stored. The ``--stats`` option causes |project_name| to before seen data is stored. The ``--stats`` option causes |project_name| to
output statistics about the newly created archive such as the amount of unique output statistics about the newly created archive such as the amount of unique
data (not shared with other archives). data (not shared with other archives)::
Archive name: Tuesday
Archive fingerprint: 387a5e3f9b0e792e91ce87134b0f4bfe17677d9248cb5337f3fbf3a8e157942a
Start time: Sun Apr 6 12:00:10 2014
End time: Sun Apr 6 12:00:10 2014
Duration: 0.08 seconds
Number of files: 358
Original size Compressed size Deduplicated size
This archive: 57.16 MB 46.78 MB 151.67 kB
All archives: 114.02 MB 93.46 MB 44.81 MB
4. List all archives in the repository:: 4. List all archives in the repository::
@ -87,12 +98,17 @@ Repository encryption is enabled at repository creation time::
When repository encryption is enabled all data is encrypted using 256-bit AES_ When repository encryption is enabled all data is encrypted using 256-bit AES_
encryption and the integrity and authenticity is verified using `HMAC-SHA256`_. encryption and the integrity and authenticity is verified using `HMAC-SHA256`_.
All data is encrypted before being written to the repository. This means that
an attacker that manages to compromise the host containing an encrypted
archive will not be able to access any of the data.
|project_name| supports two different methods to derive the AES and HMAC keys. |project_name| supports two different methods to derive the AES and HMAC keys.
Passphrase based encryption Passphrase based encryption
This method uses a user supplied passphrase to derive the keys using the This method uses a user supplied passphrase to derive the keys using the
PBKDF2_ key derivation function. This method is convenient to use and PBKDF2_ key derivation function. This method is convenient to use since
secure as long as a *strong* passphrase is used. there is no key file to keep track of and secure as long as a *strong*
passphrase is used.
.. Note:: .. Note::
For automated backups the passphrase can be specified using the For automated backups the passphrase can be specified using the
@ -101,7 +117,8 @@ Passphrase based encryption
Key file based encryption Key file based encryption
This method generates random keys at repository initialization time that This method generates random keys at repository initialization time that
are stored in a password protected file in the ``~/.attic/keys/`` directory. are stored in a password protected file in the ``~/.attic/keys/`` directory.
This method is secure and suitable for automated backups. The key file is a printable text file. This method is secure and suitable
for automated backups.
.. Note:: .. Note::
The repository data is totally inaccessible without the key file The repository data is totally inaccessible without the key file