On Feb 04 2019, Chris Davies <[email protected]> wrote:
> Hello,
>
> I have a working S3QL filesystem with all the known passphrases (i.e. my
> authinfo2 is uptodate and correct). Unfortunately I cannot find my record
> of the master key, which I know I took at the time of creation.
>
> Is it possible to retrieve it?
Not out of the box. But if you look at src/s3ql/mkfs.py, you can see
that it's just the base64 encoded contents of the s3ql_passphrase
object. So you could probably copy and paste the code elsewhere to get
it printed by eg. fsck.
Something like this:
diff --git a/src/s3ql/common.py b/src/s3ql/common.py
index 3d08b..3a6fb 100644
--- a/src/s3ql/common.py
+++ b/src/s3ql/common.py
@@ -325,6 +325,14 @@ def get_backend_factory(options):
raise QuietError('File system revision needs upgrade '
'(or backend data is corrupted)', exitcode=32)
+ print('Please store the following master key in a safe location. It allows
',
+ 'decryption of the S3QL file system in case the storage objects
holding ',
+ 'this information get corrupted:',
+ '---BEGIN MASTER KEY---',
+ ' '.join(split_by_n(b64encode(data_pw).decode(), 4)),
+ '---END MASTER KEY---',
+ sep='\n')
+
return lambda: ComprencBackend(data_pw, compress,
options.backend_class(options))
def pretty_print_size(i):
HTH,
-Nikolaus
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