Dr. Adler beat me to the punch: don't trust Wiki. I found too many
mistakes in the past.

Jeff

On Aug 25, 10:22 am, Mark Adler alumni.caltech.edu> wrote:

On Aug 26, 8:00 am, Kristian GjXsteen
wrote:

Better photos of Obama and crew here, also his brother in Afrika on $1 per
month;

http://peacemoonbeam.typepad.com/scooters_report/

"Let's elect a lying appeasing elitist racist crackhead Marksis for a
change"

On Aug 28, 3:38 pm, Mensanator aol.com> wrote:

I was reading the page below.
http://www.interhack.net/people/cmcurtin/snake-oil-faq.html
In the section Keys vs. Passphrases He mentions using a hashing
routine to change a pass phrase in to a key.

I have an issue with this. The hashing system is going to convert the
same input always into the same out put.
So is that not just adding another step to the encryption routine.

So big deal now someone using brute force still tries alpha numeric
first and it goes through the hash function first.
So it really didn't change the fact of what he was arguing about. You
are still only got a limited key size because the hash is still based
on the limits of the pass phrase.

The idea is your methods or code is known to your attacker you would
have to assume he also knows the method of hashing your key.

Or am I missing something?

Read applied cryptography and lot of other stuff on the web. From what
I gather most block ciphers operate on a block of material then move
over the length of that block and operate on the next block of
material.

I was trying to find if anyone had done something as I have done in
the past. Guessing they have just haven't found it.
Not needing it analyzed at least not at present I have improvements I
still need to add.

1. I started with a general substitution method on a byte per byte
bases based on password bytes aligning to the data.
Sure that has been done countless times.

2. I then did a bit swap routine inside each byte. Again based on
password byte.

3. Then I stepped to a 32 bit block and did byte swaps based on the
password. Instead of stepping over a full 32 bits again and doing the
same I only step one byte. What this does is shuffles the data to an
extent that some data that was initially in the front of the message
can be scrambled through out.

4. Then the entire data is bit shifted. Again based on password.

Li Weng hong.com> wrote:

I'm not familiar with this document, so I'm of course guessing at what
the notation means.

No, it is the expected value of p_y when y is sampled from Y, that is:

sum_y p_y * Pr[ Y = y ]

Pr_{x,y}[ C(x,y) = f(x) ] = sum_y Pr_{x}[ C(x,y) = f(x) ] * Pr[ Y = y ]

= E_y[ p_y ]

C12-GAMMA; a free/open-source E-mail security and file encryption
tool for BSD/Linux:

http://www.leopard.uk.com/cion

[ probably the most important cryptography software ever written;
because it contains the CipherPacket source-code/algorithm ]

On Aug 29, 9:04 am, peteyj1...@gmail.com wrote:

A few questions for you:
1. What ciphers have you broken?
2. What publications do you have in cryptography?

Most people who want a cipher analysed don't have answers to those
questions and do not understand how ciphers are attacked. People
here are not interested in doing the "homework" of other people who
do not know how to analyse their own ciphers. If you want to become
a member of The Club, then you have to first show that you're not
wasting the time of other people here.

Scott

On Aug 28, 7:49 pm, Paul Rubin <http://phr...@NOSPAM.invalid> wrote:

You also must drink the Koolade, wear the dispensed prerequsite
blinders, and learn to march in single file. OK, nothing wrong about
learning to attack any ciphers but to disregard classical stuff is not
good.

The reason that any ciphers can be studied is overcoming old
prejudices against it; it's a shame to repeat that mistake.
Neoclassical ciphers are those that might require computer assistance
at least for convenience but can still be quite useful and pardon the
candy, fun since there is a wealth of unexplored territory out there.
In any study, learning primitives as you find them is essential. New
ciphers are made from using different orders of and combinations of
them...enjoy and beware of trolls that might seek to kill your
independent curiosity for their own ends.