35 lines
1.7 KiB
Markdown
35 lines
1.7 KiB
Markdown
git-annex mostly does not use encryption. Anyone with access to a git
|
|
repository can see all the filenames in it, its history, and can access
|
|
any annexed file contents.
|
|
|
|
Encryption is needed when using [[special_remotes]] like Amazon S3, where
|
|
file content is sent to an untrusted party who does not have access to the
|
|
git repository.
|
|
|
|
Such an encrypted remote uses strong GPG encryption on the contents of files,
|
|
as well as HMAC hashing of the filenames. The size of the encrypted files,
|
|
and access patterns of the data, should be the only clues to what is
|
|
stored in such a remote.
|
|
|
|
You should decide whether to use encryption with a special remote before
|
|
any data is stored in it. So, `git annex initremote` requires you
|
|
to specify "encryption=none" when first setting up a remote in order
|
|
to disable encryption.
|
|
|
|
If you want to use encryption, run `git annex initremote` with
|
|
"encryption=USERID". The value will be passed to `gpg` to find encryption keys.
|
|
Typically, you will say "encryption=2512E3C7" to use a specific gpg key.
|
|
Or, you might say "encryption=joey@kitenet.net" to search for matching keys.
|
|
|
|
The [[encryption_design|design/encryption]] allows additional encryption keys
|
|
to be added on to a special remote later. Once a key is added, it is able
|
|
to access content that has already been stored in the special remote.
|
|
To add a new key, just run `git annex initremote` again, specifying the
|
|
new encryption key:
|
|
|
|
git annex initremote myremote encryption=788A3F4C
|
|
|
|
Note that once a key has been given access to a remote, it's not
|
|
possible to revoke that access, short of deleting the remote. See
|
|
[[encryption_design|design/encryption]] for other security risks
|
|
associated with encryption.
|