Re: HMAC-SHA-1 security question

<osmo.sis@xxxxxxxxx> wrote:
In formula: H = HAMC-SHA-1(K, V).

Now, let us assume an attacker knows H and V. Only the K is unknown.
I'd like to know if there was any possibility to make conclusions
about the secret key K?

I think that would be a major cryptanalytic result. I haven't heard of
anything like that, but then I'm not an expert.

--
Kristian Gjøsteen
.