Hi,
I have a query related to decrypting the packets when Diffie-Hellman is
used for key exchange.
Summary of DH working (as everyone knows):
---------------------
Host-A, Host-B will share Generator G, and Prime root P.
Also the random secret values are generated independently - Xa, Xb.
Now ,
Ya = G^Xa % P.
Yb = G^Xb % P.
And they will exchange Ya, Yb.
So,
Key at Host-A = Yb^Xa % P.
Key at Host-B = Ya^Xb % P.
Query:
------
I know wireshark cannot decode these packets, as it will not know the
random secret generated locally - Xa and Xb.
But is there any chance for us to know these values (or atleast one of
these values Xa or Xb)? If I host the apache
server (for https) on my machine, is there a specific location where
these values are stored or logged (at least till
the time it completes the key calculation)?
Appreciate any advice.
--
Thanks,
Nilesh
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