[openssl-dev] GOST89 cipher control command

Dmitry Belyavsky beldmit at gmail.com
Fri May 29 10:23:03 UTC 2015


Hello OpenSSL team,

Any recommendations?

Thank you!

On Mon, May 25, 2015 at 10:40 PM, Dmitry Belyavsky <beldmit at gmail.com>
wrote:

> Hello Openssl team,
>
> GOST89 cipher algorithm seems to be the only cipher algorithm supporting
> more than one sets of S-boxes.
>
> Current implementation of the GOST89 cipher provided by the ccgost engine
> does not allow to specify usage of particular S-boxes for a particular
> EVP_CIPHER_CTX instance. If I understand correctly, the only way to do it
> is to specify a ctrl-command and implement it in the engine.
>
> Is it OK to reuse EVP_CTRL_INIT ctrl command for this purpose or it will
> be better to add a special value for this?
>
> Thank you!
>
> --
> SY, Dmitry Belyavsky
>



-- 
SY, Dmitry Belyavsky
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