Re: Can encrypted data be indexed?

From: lyal (lyalc_at_no.spam.no.ozemail.com.au)
Date: 03/31/04 

Date: Wed, 31 Mar 2004 19:05:05 +1000

"Joe Cosby" <joecosby@SPAMBLOCKmindspring.com> wrote in message
news:08sj60pbqtovq8t8gfv3d8to8cq2fqvt5n@4ax.com...
>
> Given a set of data like strings in a database, is there a practical
> way to index the data? That is, given a text string like "Foo" which
> encrypts as "#F)" or something, is there a way to quickly look up
> "Foo" in the encrypted data collection?

Why not use the index to partially define the key(s) as well as uniquely
identify the message?
As long as neither the index nor encrypted data are not altered the
plaintext can only be recovered with knowledge of the secret key.
see www.key2it.com.au for an example (caveat - I am involved with the
company)

Lyal

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