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

Groups > comp.programming > #5609

Re: JTRIG, SIGDEV

Show all headers | View raw

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.

Cheers,
Johannes

-- 
>> Wo hattest Du das Beben nochmal GENAU vorhergesagt?
> Zumindest nicht öffentlich!
Ah, der neueste und bis heute genialste Streich unsere großen
Kosmologen: Die Geheim-Vorhersage.
 - Karl Kaos über Rüdiger Thomas in dsa <hidbv3$om2$1@speranza.aioe.org>

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