I kind did not understand the privacy issues of RFC4941 describbed in
Appendeix A.
To my reading and understanding of RFC4941,
RFC4941 specified to use privacy/temporary address defined as:
temporary address= subnet Prefix|| Randomized interface identifier
Randomized interface identifier=Hash(fixed interface identifier||64
bits random bits)_left64bits;
Compared to the calcualation proposed in
draft-ietf-6man-stable-privacy-addresses-03
RID = F(Prefix, Interface_Index, Network_ID, DAD_Counter, secret_key) ＿
left64bits
They have no essential difference considering secret_key may be random
bits.
I wonder how an attacker can track a host by such randomizide IID?
The only privacy problem I can think of in RFC4941, is that, a host may
have two addresses at the same time, one public fixed address for
server-function,and one temporay address,
But if only temp address is used,how can a host be tracked across network?
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