Re: Key entropy, stream entropy, block entropy, block population entropy AKA uniique stream length

On 10 Feb 2007 09:07:20 -0800, jt64@xxxxxxxx wrote:

<snip>

You've become incoherent.

I understand some math and crypto but you've strayed far off those
subjects and are now speaking of things that appear to be both made up
and not related to anything properly thought out.

So I don't understand what you are saying.

But I am perfectly capable of understanding reasonable, well-grounded
thought. Unfortunately what you write about is not in that category.


In addition I put forth a very concrete, simple set of thoughts about
entropy, that anyone with any clue could comment on.

And you were unable to deal with it. Period.

You don't speak in terms of math or science so why pretend to be a
mathematician or a scientist? It makes you appear to be quite mad.


The sad, sad, you're going-to-have-to-get-used-to-it truth is that you
cannot get entropy from a source that does not exist.

If you are limited to a password/key and an algorithm without any
external input of entropy like a hardware RNG or crypto designed
CSPRNG like /dev/random on *NIX or CryptGenRandom on Windows, or
manual unpredictable things like mouse movement or dice throwing, then
you only have the entropy from the password/key.

The algorithm, no matter how complex or convoluted (get this through
your head) is going to be deterministic and does not contain entropy.

You can't change that. You've done nothing to alter the truth of it.

Nothing. Nada. Zip. Bupkus. Jack Squat. And the list goes on...





Now... regarding your comments about spooky organizations trying to
discredit something they want to bury. I agree that is does take
place, at least in my country, the United States. They call it
misdirection, misinformation and plausible deniability. And it can
get much harsher into discrediting and worse.

But... to put your unintelligible ramblings at the level of something
that they (NSA, CIA, other spooky entities, etc) would want to
suppress is something that you should look at seriously, not us.

You are suffering from delusions of grandeur and that is a nice name
for a bad condition. It is almost always closely linked with both
schizophrenia and paranoia.

The longer you hold on to these thoughts without making yourself stop
to think about what is really going on around you, the harder you are
going to crash. Pick up a phone and get help. No one here will know
you did that and there is no shame in getting help and working through
it.


.

Relevant Pages

  • Re: Weakness of Feistel ciphers
    ... Well you claimed Feistels are broken based on a design you came up ... Entropy on the otherhand is well defined. ... Crypto isn't just math. ...
    (sci.crypt)
  • Re: A secure, trustworthy Win XP compitable encryption program with GUI interface?
    ... >> that most cryptographic hashes are even cryptographically strong. ... Also it is a fundamental property that any strong crypto ... the requirements of an entropy distillation function. ... CRC output stream and use it as an AES key to encrypt the CRC output ...
    (sci.crypt)
  • Re: new /dev/random
    ... There was none in the original version, which gave it the exact same ... reading more data than is in the entropy pool. ... if the crypto primitives ...
    (sci.crypt)
  • Re: strengthening /dev/urandom
    ... The Linux /dev/random mixer has some general-purpose entropy estimation ... /dev/random is safe, if you want a true RNG (i.e., true entropy, secure ... against information-theoretic attacks) or if you don't trust the crypto. ...
    (sci.crypt)
  • Re: A secure, trustworthy Win XP compitable encryption program with GUI interface?
    ... >> Obviously a hash function cannot produce entropy. ... >Another important point is that strong crypto hashes are highly ... >input and output size that is a perfect entropy distiller ...
    (sci.crypt)