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From: Stephan Giehlow <stephan.giehlow@openlimit.com>
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Date: Wed, 21 Oct 2015 11:19:43 +0200 (CEST)
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Subject: Re: [dm-crypt] question to crypt_format function
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To: Milan Broz <gmazyland@gmail.com>, dm-crypt@saout.de

Hi,

thanks for the fast answer. The cryptsetup binary itself works on the arm
device. I added debug logging to my source. When I perform the
crypt_format function I can see the Log "#Crypto backend () initialized".
On my developer virtual machine are more information - like "#Crypto
backen (Linux 3.7.10-1.32-desktop kernel CryptoAPI) initialized".

Is there any missing additional call to initialize any crypto backend?

Thanks,
Stephan

-----Urspr=FCngliche Nachricht-----
Von: Milan Broz [mailto:gmazyland@gmail.com]
Gesendet: Dienstag, 20. Oktober 2015 20:24
An: Stephan Giehlow <stephan.giehlow@openlimit.com>; dm-crypt@saout.de
Betreff: Re: [dm-crypt] question to crypt_format function

On 10/20/2015 04:27 PM, Stephan Giehlow wrote:
> we are using libcryptsetup to generate a luks container on an arm
> device. The developed code comes from your example
>
(https://gitlab.com/cryptsetup/cryptsetup/wikis/API/crypt_luks_usage_8c-e=
x
ample.html).
> But we have one problem: When running the code on the device, the
> crypt_format function will ends with the error =93Cannot initialize
> crypto backend=94. Do you have any tip to solve the error?

Something is probably misconfigured on your system.

If cryptsetup binary itself works, try to add debug info to your program:

crypt_set_debug_level(CRYPT_DEBUG_ALL);

and also try to strace it (do not use valuable password though:)

If it there is still not useful explanation in log, please send the outpu=
t
of these logs.

Thanks,
Milan