Re: Which is the Fastest (Secure) Way to Exchange 256-bit Keys?
- From: "Pubkeybreaker" <pubkeybreaker@xxxxxxx>
- Date: 22 Feb 2007 06:00:43 -0800
ashish.sharma.ait@xxxxxxxxx wrote:
Hi,
I need a fast way to exchange 256-bit keys, which I would be using in
AES CTR mode for decrypting streams.
What is the fastest option for:
1. Max possible throughput on General Purpose PCs ?
2. Max possible throughput on ARM 7?
3. Min possible latency on General Purpose PCs ?
I'm again not looking for any Standards' Compliance. Something
adequately safe for the next 10-15 Yrs should do.
Pointers to Open-Source Libraries would be very helpful.
I've already got TFM in mind, but I'm looking for something C# based.
Allow me to point out that, in general, the computational speed does
not matter
for key establishment/exchange.
Communication latencies are so much longer than computation times that
they are
the binding constraint regardless of whether you are using RSA, DH,
ECDH, or ECMQV.
Indeed, I would suggest protocols that minimize the *number* of
message exchanges,
rather than focus on computation speed. (i.e. MQV is expensive)
.
- References:
- Which is the Fastest (Secure) Way to Exchange 256-bit Keys?
- From: ashish . sharma . ait
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