Re: Minimize key size for sending only 10 messages

In article <1145347203.015338.88700@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
Ulf Reiman <ulf.reiman@xxxxxxxxx> wrote:
If I want to have a secure system, as always.
Moreover, want to minimize the key length in the nodes, for sending
data over a wireless network.
The keys will be used to sent only 10 messages, is there any info about
suitably algorithm, and keysize?

The choice of keysize and encryption algorithm is a tradeoff between
the computation required and the security level you need. You have
not defined the security level you need, so we can't really make
any recommendation.

There really isn't any such thing as a "secure system": all
there are are systems that are more difficult to get access to.
You could build a 10 metre thick and 40 metre high wall around your
house, and that might keep out casual intruders, but it would not
stop someone who brought in a crane with wrecking ball.
.

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