I don't so much "not like him". But, compare cite records:
http://scholar.google.com/scholar?q=Serge+Vaudenay&hl=en...
http://scholar.google.com/scholar?q=hans+dobberton&hl=en...
http://scholar.google.com/scholar?q=Serge+Vaudenay&hl=en...
http://scholar.google.com/scholar?q=hans+dobberton&hl=en...
But he just retired from blogging about netsec and is done with the industry, I think (a lot of ppl get sick of it, I left the sec industry 10+ years ago and never looked back)