Re: Password hash as LUKS key

Grzegorz Szymaszek <[email protected]> Wed, 15 Mar 2023 17:24:31 +0100

Newsgroups	dev.linux.lists.cryptsetup
Message-ID	<ZBHxP1L7FMpfW600@nx64de-df6d00>

Hi,

On Wed, Mar 15, 2023 at 03:11:18PM +0000, Martin Olsson wrote:
> printf "%s\n%s\n%s\n" "12345" "$y$j9T$35ITJ7yCc3kFUsasf3QDa/$n.HqacKYHPIEE6VxIHhT2vW8.7vfh.fn008SQS5ETb9"| sudo /sbin/cryptsetup luksAddKey /dev/sda3

 1. The format string contains three %s conversion specifications, but
    you provide printf with only two operands. Please try something like
    the following in your shell:

        printf '1. %s 2. %s 3. %s\n' FIRST SECOND

    This is probably not an issue since IIRC luksAddKey only asks for
    the new passphrase once, so it should ignore the next empty line.

 2. In double quotes, a dollar denotes a variable name. For example, in
    "$y$j9T", the shell replaces $y and $j9T with the values of the
    respective variables. Since they are probably not defined, they are
    replaced with empty strings instead. I think the actual password you
    set with the above command is
    "5ITJ7yCc3kFUsasf3QDa/.HqacKYHPIEE6VxIHhT2vW8.7vfh.fn008SQS5ETb9".

Good luck!

-- 
Grzegorz Szymaszek

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