You can use -d to pass in file data, which naturally bypasses the prompt,
it should easily work with a fifo too, IIC.
Quote:
--key-file, -d name
Read the passphrase from file.
If the name given is "-", then the passphrase will be read
from stdin. In this case, reading will not stop at newline
characters.
With LUKS, passphrases supplied via --key-file are always
the existing passphrases requested by a command, except in
the case of luksFormat where --key-file is equivalent to
the
positional key file argument.
If you want to set a new passphrase via key file, you have
to use a positional argument to luksAddKey.
See section NOTES ON PASSPHRASE PROCESSING for more
information.
And please read the passphrase processing part for a complete understanding!
-Sven
On Mon, February 17, 2014 16:28, Thomas Bächler wrote:
> Am 17.02.2014 16:18, schrieb Sven Eschenberg:
>> As you might have realized, cryptsetup provides ways to not show its own
>> prompt
>
> What's the option for that? I can't find it in the manpage.
>
>
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