Re: Hardware True Random Number Generator design / concept




The Real Andy wrote:
>
>Yoy G0 <yoyg0@xxxxxxxxxxxx> wrote:
>
>>That is not one time pad. Not that it can't be done securely,
>>but you don't have the theoretical secrecy against an attacker
>>with unlimited computing power that OTP offers.
>>With unlimited power the attacker can try all possible seeds
>>(since there are only a finite number of them)
>>and find the one that decrypts to something sensible.
>>All the wrong decryptions will look like random data.
>>With OTP all plaintexts are equally likely,
>>including all the sensible ones, so there is no way to
>>tell which one is correct.
>>OTP will require a hardware random number
>>generator for every bit of the keystream.
>
>Given any number of unlimited resources, one can crack any
>crytographic system.

BUZZ!!

WRONG ANSWER!!!

Nobody can crack a properly used one-time pad, even with infinite
resources and infinite time. This is not an opinion or a guess;
it is a mathematical certainty that they cannot be cracked.

That being said, there are any number of methods that are far more
convenient and which require resources and time that, while not being
infinite, are much larger than one could fit in the universe and which
require more time than there is between the birth and death of the
universe.

--
Guy Macon <http://www.guymacon.com/>





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Relevant Pages

  • Re: Continue Work on the One-Time Pad? - adacrypt
    ... Major Joseph Mauborgne's work on the one time pad so as to get this up ... the secure generation of large quantities of true random data. ... OTP data be erased from all memory, swap files, system backups, ...
    (sci.crypt)
  • Re: Erasing an OTP file on a SD card.
    ... I implemented One Time Pad under AES 256 bits CBC ... In our system you can't use OTP alone. ... secure than other systems, but in the worst case it has no advantage ...
    (sci.crypt)
  • Re: Use of Pseudo Random Generators for One Time Pad?
    ... can it be used to create One Time Pad. ... > The following link demonstrates the use of YARROW for OTPs. ... I don't know why you insist on calling this OTP. ... just a poorly implemented stream cipher. ...
    (sci.crypt)
  • Re: Secure Data & Communication Project
    ... One Time Pad will not be ... Each time any portion of the key ... > When the key material is used up, the parties shall repeat the ... computing power that OTP offers. ...
    (sci.crypt)