GOST cryptography -- Russian Federation's crypto algorithms

[Jan Dušátko]

It is not worth standard. From my point of view, seems much more that
they developed part of old Magma (GOST 28147-89) and combined together
with the AES optimized for 64-bit - Kuznechik (GOST R 34.12-2015). Also,
the Streebog and Stribob are quite good.

https://eprint.iacr.org/2015/096.pdf
https://eprint.iacr.org/2015/347.pdf
https://eprint.iacr.org/2015/812.pdf
Also the http://gostcrypto.com/ - GOST mean the gosudarstvennyy standart
/ государственный стандарт

Jan

Dne 22.10.2016 v 19:13 stef napsal(a):
> On Sat, Oct 22, 2016 at 02:11:02PM +0300, Sergey Matveev wrote:
>>> Current standards are standards, not "western standards".
>> There is no "world" or "common" standards. Standards are always related
>> to something.
>>
>>> And why should
>>> we use somehing like this: https://eprint.iacr.org/2016/071.pdf?
>> What is the problem? S-box is not randomly chosen? Does it hurt this
>> blockcipher security? No.
> in fact according to the abstract of that paper: 
>
> "However, the small 4-bit S-Boxes do not have very good cryptographic
> properties. In fact, one of them has a probability 1 differential. "
>
> is the abstract wrong?

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