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