|
Posted by Volker Birk on August 1, 2006, 7:16 am
If you were Registered and logged in, you could reply and use other advanced thread options
> Can someone please explain why is a one-time pad very good but at the same
> time very impractical/expensive?
It's very good, because it's the only cryptography algorith, which is
proofable secure.
It's expensive, because it needs as much known random data, the same at
sender's as at receiver's side, as plaintext is to send.
It's not perfect, because it does not help against known plaintext
attacks which implement the MITM pattern, if there are no extra
provisions.
Yours,
VB.
--
Ich würde schätzen, dass ca. 87% aller spontanen Schätzungen völlig für
den Arsch sind.
Ralph Angenendt in debate@ccc.de
| 
XML site map