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SubjectRe: A new, fast and "unbreakable" encryption algorithm
From
Lukasz, Clemens, Herald, Others Linux and Open Source Enthusiasts:

You are all invited to collaboratively improve our encryption algorithm at:
https://github.com/ikizir/HohhaDynamicXOR

Write down every weaknesses you find, every idea to improve; every
code piece you think necessary.
Let us not disturb kernel group anymore.
Thank you very much in advance

On Thu, Nov 19, 2015 at 2:31 PM, Ismail Kizir <ikizir@gmail.com> wrote:
> Francly Lucasz,
>
> I am not an expert and never claimed it.
> And I accept it's vulnerable to side channel attacks like the one you mentioned.
> With this occasion, I want to emphasize one point:
> I don't claim that the my algorithm is perfect.
> But, take a look at this:
>
> But, I am sure, this "dynamic key model" is the right way to follow
> for the encyption.
> You are all on the top of the "IT food chain" guys.
> It is a GPLed algorithm and code.
> Let's develop it ourselves for ourselves.
> Let's think together.
> For example; Clemens's "all zero" file is another weak point. I am
> thinking about it too.
> Help me. Criticise the algorithm. wrote you all to be criticised.
> Show me the weaknesses Let's think together and get it better.
> Some people think that's not the right place for this discussions and
> they may be right. Write me privately please. And I am constantly
> updating the code on
> http://ismail-kizir.blogspot.com.tr/2015/11/hohha-dynamic-xor-algorithm-source-code.html
>
> Ismail Kizir
> CTO, Hohha Internet Services Ltd.
>
> On Thu, Nov 19, 2015 at 2:12 PM, Łukasz Stelmach <l.stelmach@samsung.com> wrote:
>> It was <2015-11-18 śro 06:25>, when Ismail Kizir wrote:
>>> Hello,
>>>
>>> I've developed a new encryption algorithm, which dynamically changes
>>> the key according to plaintext and practically impossible to break.
>> [...]
>>> I will be glad to see my algorithm included in Linux distributions.
>>> Please feel free to ask if you have any questions.
>>
>> How resistant to side-channel attacts is or can be an implementation of
>> your algorithm? Not being an expert I am a bit worried about this
>> particular line
>>
>> XORVal ^= *(Salt + (LastVal&(SALT_SIZE-1)));
>>
>> which if I understand it correctly makes a memory access depending on
>> secret data. Because memory accesses are note constant time operations
>> due to cache one might try (and succeed?) learning about secrets by
>> measuring time required to encrypt or decrypt data.
>>
>> --
>> Łukasz Stelmach
>> Samsung R&D Institute Poland
>> Samsung Electronics


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