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Re: DataStructure for Storing SPD,SA Entries



hi,
With Hash Table finding an efficient hash function
seems to be a major Problem. Also as the Selector
contains of a number of fields, it would make the task
even complicated. Which Implementations are using Hash
Tables for storing SPD and SAD? What kind of hash
functions do they use?? 

Also does the range queries with wild cards not create
a major problem in formulating a Hash Function??
Does any implementation use Tries for Storing SPD,SAD?

Please help me with the above queries,

 Regards,
 Ranjeet Barve,
 M.Tech IIT Bombay.


 
--- Puja Puri <puja.puri@cdac.ernet.in> wrote: > hi
> Hash tables seem to be good for SPD n SAD, since
> search is faster than many
> other data structures. It is used by many toolkits
> which implement IPSec.
> 
> Just need to take care that policies don't overlap
> Correct me anybody if I am wrong.
> regds
> puja
> ----- Original Message -----
> From: "ranjeet barve" <ranjeet_barve@yahoo.co.in>
> To: <ipsec@lists.tislabs.com>
> Sent: Friday, October 12, 2001 8:10 PM
> Subject: DataStructure for Storing SPD,SA Entries
> 
> 
> > hi,
> > I had a quesiton on the Data Structure to use for
> > Security Policy Database and Security Association
> > Entries.
> > Which would be the most efficient Data Structure
> for
> > Storing SPD and SA entries ??
> > Which Data-Structure is Most Commonly used?
> > (I apologise if this question is already answered
> in
> > the mailing list.)
> >
> > Please let me know.
> >
> > Regards,
> > Ranjeet Barve,
> > M.Tech IIT Bombay.
> >
> >
> >
> >
>
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