Opps: mcrypt & DES 8 bit.

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4 total messages Started by Knight of Tossing and Turning Wed, 12 Aug 1992 21:16

#659

Author: Knight of Tossing and Turning
Date: Wed, 12 Aug 1992 21:16

31 lines
1850 bytes

I just confirmed that DES does indeed do 8 bit binary encryptions.
Flame off.  Chill.          

Part of the reason why I started this was due to the fact that all
the varient software I have with DES does only ASCII.

It still doesn't fix the other problems that I've been harping
on DES for:

1)  Slow
2)  It is on the verge of becoming commonly crackable.
    (okay, everyone will flame this, since everything seems to
     be more rumor than naught but since I'm sure this discussion
     has been chewed to death, lets not get into that now.)

If RSA is significantly faster than DES, I'd drop this whole project.

Please be patient with me, I'm spending lots of time and have very
little resources to delve into the subject.  Someone suggested
taking "classes" on cryptography.  Sorry, no such classes are taught
within 200 miles of where I live.  I've ordered some books on
encryption which should arrive at the regional library within a
few months.  Research machines for me include a Prime 4150, my
386 at home, and the FSF machines.  

Sorry to be a slow wheel.  I just see a problem I would like to fix
and I don't care WHAT encryption method I use as long as it fits
my requirements.  I'd rather see something done right the first time,
and mostly I'd just like it see it done.

--  Eric Knight, "Programmer at Large"

Amateur cryptosystem design

#680

Author: Perry E. Metzger
Date: Thu, 13 Aug 1992 15:21

28 lines
1703 bytes

knight@hal.gnu.ai.mit.edu (Knight of Tossing and Turning) writes:
>I just confirmed that DES does indeed do 8 bit binary encryptions.
>Flame off.  Chill.          

Gee, for a person contemplating creating a new cryptosystem, wouldn't
it have been nice to know in advance what other cryptosystems do?

>Please be patient with me, I'm spending lots of time and have very
>little resources to delve into the subject.  Someone suggested
>taking "classes" on cryptography.  Sorry, no such classes are taught
>within 200 miles of where I live.  I've ordered some books on
>encryption which should arrive at the regional library within a
>few months.  Research machines for me include a Prime 4150, my
>386 at home, and the FSF machines.  

"Please be patient with me. I'm really enthusiastic about doing brain
surgery, and its highly unfair of all of you to discriminate against
me because I've never read a book on biology, and this stuff about
going to med school, well, I just can't afford it. You are all such
jerks for being nasty to me about all this; I think I can do brain
surgery as well as the next guy. Hell, I bought a scalpel last week,
see!"

--
Perry Metzger		pmetzger@shearson.com
--
		  Just say "NO!" to death and taxes.
			 Extropian and Proud.

Re: Amateur cryptosystem design

#703

Author: Sam Blackburn
Date: Fri, 14 Aug 1992 13:49

2 lines
544 bytes

Just a suggestion but, layer your encryption.  Encryption, transposition,
substitution, transposition, etc...

Re: Amateur cryptosystem design

#714

Author: Russ Schnapp
Date: Fri, 14 Aug 1992 23:46

23 lines
1589 bytes

In article <1992Aug13.152133.19864@shearson.com>, pmetzger@snark.shearson.com (Perry E. Metzger) writes:

|> "Please be patient with me. I'm really enthusiastic about doing brain
|> surgery, and its highly unfair of all of you to discriminate against
|> me because I've never read a book on biology, and this stuff about
|> going to med school, well, I just can't afford it. You are all such
|> jerks for being nasty to me about all this; I think I can do brain
|> surgery as well as the next guy. Hell, I bought a scalpel last week,
|> see!"
|> 
|> --
|> Perry Metzger		pmetzger@shearson.com

Take it easy.  Weren't you ever young and over-eager?  Perhaps if Mr.
Knight can express himself better, we might be able to better classify
his algorithm.  Who knows, if we don't discourage people who think they
have good ideas, perhaps we might all learn something...
-- 

...Russ Schnapp
BIX: rschnapp           Email: uunet!metaflow!rschnapp or rschnapp@metaflow.com
Metaflow Technologies   Voice: 619/452-6608x230;  FAX: 619/452-0401
La Jolla, California    Unless otw specified, I`m speaking only for myself!

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