Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.programming > #5611

Re: JTRIG, SIGDEV

From Mok-Kong Shen <mok-kong.shen@t-online.de>
Newsgroups comp.programming
Subject Re: JTRIG, SIGDEV
Date 2015-08-08 10:36 +0200
Organization albasani.net
Message-ID <mq4f1o$72l$1@news.albasani.net> (permalink)
References <mq1nsl$b1r$1@news.albasani.net> <20150807074449.236@kylheku.com> <mq2p8j$99k$1@news.albasani.net> <mq4dlh$4os$1@news.albasani.net>

Show all headers | View raw


Am 08.08.2015 um 10:12 schrieb Johannes Bauer:
> On 07.08.2015 19:18, Mok-Kong Shen wrote:
>
>> In the other thread I argued that, since an algorithm of CSPRNG
>> given in HAC is based on RSA, there would have been a vicious
>> circle in implementation, if the generation of RSA keys had required
>> from the outset an CSPRNG. (If this 2nd CSPRNG is not available,
>> then the implementation of the first CSPRNG is obviously impossible.
>> If the 2nd CSPRNG is available, then in the clearly majority of cases
>> in practice one would (for convenience and economy) simply use that
>> 2nd CSPRNG and not spend any additional time and efforts to do an
>> implementation for the 1st CSPRNG.
>>
>> Is there any logical error in my argument above?
>
> Yes.
>
> You seem to think that a CSPRNG is the only way to generate keys. That
> is absolutely false.
>
> For key generation typically a TRNG is used. If it is absolutely
> necessary, then one may rely on a CSPRNG that has been seeded by a TRNG.
> Under no circumstances is any of the following ever a surrogate for a TRNG:
>
> (1) A regular PRNG (even if seeded by a TRNG)
> (2) A CSRNG seeded by deterministic data
>
> You're using the worst of two world: A regular PRNG seeded by
> deterministic data and claim to use secure key generation.
>
> And you repeatedly spreading that somehow an RSA-CSPRNG would be a
> prerequisite or the only way to generate RSA keys is ludicrous. You
> clearly demonstrate your vast inaptitude when it comes to cryptography
> time and time again.

Oh, I don't remember to have ever claimed that "somehow an RSA-CSPRNG
would be a prerequisite or the only way to generate RSA keys"!! Could
you please quote me?

You seem also to be an expert in issues of entropy. Could you please
read my answer to Kylheku, just sent, and eventually provide answers
to points that he may not sufficiently cover in his next post?

M. K. Shen

Back to comp.programming | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread


Thread

JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-07 09:48 +0200
  Re: JTRIG, SIGDEV Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-07 09:57 +0200
    Re: JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-07 14:03 +0200
      Re: JTRIG, SIGDEV Kaz Kylheku <kaz@kylheku.com> - 2015-08-07 15:05 +0000
        Re: JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-07 18:20 +0200
  Re: JTRIG, SIGDEV Kaz Kylheku <kaz@kylheku.com> - 2015-08-07 14:51 +0000
    Re: JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-07 19:18 +0200
      Re: JTRIG, SIGDEV Kaz Kylheku <kaz@kylheku.com> - 2015-08-07 21:57 +0000
        Re: JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-08 10:25 +0200
          Re: JTRIG, SIGDEV Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-08 19:57 +0200
            Re: JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-08 22:14 +0200
              Re: JTRIG, SIGDEV Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-09 12:23 +0200
                Re: JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-09 22:04 +0200
                Re: JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-09 22:08 +0200
                Re: JTRIG, SIGDEV Richard Heathfield <rjh@cpax.org.uk> - 2015-08-11 17:15 +0100
      Re: JTRIG, SIGDEV Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-08 10:12 +0200
        Re: JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-08 10:36 +0200
          Re: JTRIG, SIGDEV Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-08 15:25 +0200
            Re: JTRIG, SIGDEV Mok-Kong Shen <mok-kong.shen@t-online.de> - 2015-08-08 22:15 +0200

csiph-web