[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: "random" number seeds vs. Netscape
-----BEGIN PGP SIGNED MESSAGE-----
> Very interesting. I wouldn't be too sure that a transmitted signal at a
> single frequency is the only signal that an opponent could use to bias your
> random numbers. How do you "test for randomness". I think that signal to
> noise arguments, phrased in terms of entropy, can protect you against
> unknown and unwanted signal. (Ironically you want a very low signal to
> noise ratio!) Perhaps you merely take n/(S/N) bits from the HRNG when you
> need n bits and run them thru MD5. Here S is the signal strength of the
> maximum plausible unwanted signal, and N is the noise of the diode.
I tested for randomness by looking at the distribution of random numbers
over the range I was drawing random numbers from. If it didn't look
random, it wasn't ;)
- --
Ed Carp, N7EKG [email protected], [email protected]
214/993-3935 voicemail/pager
Finger [email protected] for PGP 2.5 public key [email protected]
Q. What's the trouble with writing an MS-DOS program to emulate Clinton?
A. Figuring out what to do with the other 639K of memory.
-----BEGIN PGP SIGNATURE-----
Version: 2.6.2
iQCVAwUBMGdK9SS9AwzY9LDxAQHdVQQAjwez1skYK8eaClLEq7mCb0V8aPERe/58
3AxH5W9JuaJqWD/nArVLW7HAY4tOM5Sjb2IHZsK3wF29Bd3A/TI0GM5Y1y2vOF9P
rNlkM2schf2nfsx7BdfqxWYELxCRUUeZTIagxwWSNMmCbMS22bMiYguVnxHqrjj1
g9n1fCzVDHA=
=tpBm
-----END PGP SIGNATURE-----