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25 Sep 2019
Earlier this year I gave a talk as a UASG Ambassador at the eco talk at the CSA summit in Cologne. We did a video interview which they finally finished editing and put on their web site here. eco have a little more info their web site at https://www.dotmagazine.online/issues/digital-identities/ipv6/EAI. The camera angle is a little odd but other than that I think it came out well.
22 Aug 2019
Apropos of recent news stories about a blockchain based voting system that was hacked before its first election, someone asked: Perhaps final recognition that a lot of blockchain is hype? Or simply an interesting side-story? A blockchain can ensure that the lies you see are the same lies that were published, but that doesn't have much to do with voting. Voting has a very peculiar security model -- you need to verify that each person voted at most once, you need to count all of the votes for each candidate, and you need not to link the two. A lot of very bad voting systems are built by people who wrongly assume that its security model is similar to something else, which it is not. An obvious example is Diebold who built voting machines that worked like ATMs, which was a disaster, since the way you audit ATMs depends on the details of each transaction being linked to the person doing it. Paper ballots have a lot to recommend them. It's easy for poll workers to observe that each voter puts one ballot into the box, they're relatively easy to count (we use mark sense machines here) and compared to the spaghetti code in direct recording machines, they're quite tamper resistant.
17 Mar 2019
24 Jan 2019
05 Sep 2018
I have recently become aware of a blog post from Recorded Future that attempts to analyse the effects of the GDPR on online security. Unfortunately, it starts by asking an irrelevant question, and then goes on to use irrelevant metrics to come to a meaningless answer. The premise of Recorded Future's article -- that spammers would send more spam and register more domains because GDPR came into effect -- tells us nothing useful about how GDPR affects anything. It's the wrong question, it's not a question most security people are concerned with, and it ignores how spam and spammers work.
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