Messages in this thread | | | Subject | Re: predictable IP ID | Date | Wed, 06 Oct 1999 09:56:38 -0400 | From | Horst von Brand <> |
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Savochkin Andrey Vladimirovich <saw@msu.ru> said:
[...]
> Now we have a strong RND based generator for the first ID for a peer. But > its fairly slow (MD4 hash) and can't be used for every packet. Strength of > the generator and requirements for a guaranteed long period contradicts each > other.
Wasn't the /dev/random stuff invented exactly for this kind of uses? I'd assume you can bypass the MD hash here, and just steal a byte or two directly from the entropy pool. -- Dr. Horst H. von Brand mailto:vonbrand@inf.utfsm.cl Departamento de Informatica Fono: +56 32 654431 Universidad Tecnica Federico Santa Maria +56 32 654239 Casilla 110-V, Valparaiso, Chile Fax: +56 32 797513
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