Re: Can I use an used One-Time-Pad to encrypt a new OTP?

On Sep 7, 10:05 am, jonas.thornv...@xxxxxxxxxxx wrote:
....


Correct he should not use *THE OLD KEY TO ENCRYPT*


He should not use EITHER KEY TO ENCRYPT a new message

The way things really are is like this, if you have an algorithm where
"the so-called random key is "AN INTERNAL STATE" used in an avalanche
function changing it from block to block, and then you have a
nonereversible function working upon it to calculate the *PSEUDO*
random stream AKA OTP stream.

If you develop the tools you need to do this, then your cipher is as
safe as a real

OTP.

JT

Sorry none of this will lead to something as safe as an OTP not
even my suggestions which would enhance what you are
trying to do. But none of these are close to an OTP

look a real OTP is secure because any message could have been
encrypted. But not matter how complex your one way function is if
the attacker every had the original key. The trailing message could
be decrypted. In otherwords an attcker could test for the correct key
after several messages. Granted this may be hard but the fact that
a lucky guess would imediatedly show itself as correct or false means
its not even close to an OTP. I's really that simple.


David A. Scott
--
My Crypto code
http://bijective.dogma.net/crypto/scott19u.zip
http://www.jim.com/jamesd/Kong/scott19u.zip old version
My Compression code http://bijective.dogma.net/
**TO EMAIL ME drop the roman "five" **
Disclaimer:I am in no way responsible for any of the statements
made in the above text. For all I know I might be drugged.
As a famous person once said "any cryptograhic
system is only as strong as its weakest link"

.

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