Re: CHAL2X

From	Richard Heathfield <rjh@cpax.org.uk>
Newsgroups	sci.crypt
Subject	Re: CHAL2X
Date	2021-09-26 21:37 +0100
Organization	Fix this later
Message-ID	<siqlms$sjq$2@dont-email.me> (permalink)
References	(13 earlier) <siqf0i$1bl4$1@gioia.aioe.org> <87pmsvrup2.fsf@bsb.me.uk> <siqjam$bri$2@dont-email.me> <46e50127-3a6a-4c73-9a75-7c3d6e99d11bn@googlegroups.com> <siql8c$47r$1@gioia.aioe.org>

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On 26/09/2021 21:30, Max wrote:
> On 26.09.21 22:19, Stefan Claas wrote:
>> On Sunday, September 26, 2021 at 9:57:12 PM UTC+2, Richard Heathfield 
>> wrote:
>>> On 26/09/2021 20:41, Ben Bacarisse wrote:
>>>> Max <maxt...@gmx.net> writes:
>>>>
>>>>> One more question: the seed has to be an integer, right? What is the
>>>>> valid range for it? At some stage I will take a closer look at the
>>>>> code, but for now asking you is the lazy option for me. Hope you don't
>>>>> mind.
>>>>
>>>> The codes says:
>>>>
>>>> * TODO: validate the sbseed to ensure it's < 2^31.
>>> Indeed. In actual use it won't last more than a few microseconds before
>>> it's &='d with 0x7FFFFFFFUL.
>>
>> I have a little question (I am no C programmer) Do you think it would 
>> make
>> sense that instead of typing in the sbseed value it would be useful if 
>> a user
>> of your software would run something like:
>>
>> shuf -i 1-2147483647 -n 100 > sbseed.txt
>>
>> and your program would mark the used values, after usage, with
>> say an '*', so than when all values are used your program would
>> say something like 'sbeed file used up'?
>>
>> Regards
>> Stefan
>>
> 
> Hey, Stefan, you bring up a valid point. If the seed is crucial to the 
> security of the cipher

The S-boxes are not part of the key.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

Thread

CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-23 16:34 +0100
  Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-25 19:45 +0200
    Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-25 19:04 +0100
      Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-25 20:08 +0200
  Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-25 23:03 +0200
    Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-25 22:14 +0100
      Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-26 00:53 +0200
        Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 06:59 +0100
          Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-26 14:40 +0200
            Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 13:58 +0100
              Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-26 15:54 +0200
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 15:06 +0100
                Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-26 17:11 +0200
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 16:53 +0100
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 17:12 +0100
                Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-26 18:42 +0200
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 18:27 +0100
                Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-26 20:43 +0200
                Re: CHAL2X Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-09-26 20:41 +0100
                Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-26 21:46 +0200
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 20:57 +0100
                Re: CHAL2X Stefan Claas <spam.trap.usenet@gmail.com> - 2021-09-26 13:19 -0700
                Re: CHAL2X Max <maxturv26@gmx.net> - 2021-09-26 22:30 +0200
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 21:37 +0100
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 21:33 +0100
                Re: CHAL2X Stefan Claas <spam.trap.usenet@gmail.com> - 2021-09-26 13:39 -0700
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-26 20:53 +0100
                Re: CHAL2X Colin <a@b.com> - 2021-09-27 19:11 +1300
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-27 07:41 +0100
                Re: CHAL2X Colin <a@b.com> - 2021-09-27 20:02 +1300
                Re: CHAL2X Richard Heathfield <rjh@cpax.org.uk> - 2021-09-27 08:27 +0100
                Re: CHAL2X Colin <a@b.com> - 2021-09-28 20:09 +1300

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