DNS-over-TLS has recently become a welcome addition to the range of security protocols supported by DNS. It joins TSIG, SIG(0) and DNSSEC to add privacy, and, in the absence of validating stub resolvers, necessary data integrity on the link between a full-service resolver and the users' stub resolver. (The authenticated source feature of TLS may also offer some additional benefits for those of a nervous disposition.) Good stuff. What is not good stuff is... more
The DNS system is, unfortunately, rife with holes like Swiss Cheese; man-in-the-middle attacks can easily negate the operation of TLS and website security. To resolve these problems, the IETF and the DNS community standardized a set of cryptographic extensions to cryptographically sign all DNS records... Now that these standards are in place, how heavily is DNSSEC being used in the wild? How much safer are we from man-in-the-middle attacks against TLS and other transport encryption mechanisms? more
Do you have a great idea about DNSSEC or DANE that you'd like to share with the wider community? If so, and you're planning to be in Barcelona, Spain for ICANN63 in October 2018, submit a proposal to present your idea at the DNSSEC Workshop! Send a brief (1-2 sentence) description of your proposed presentation to [email protected] by Friday, 07 September 2018. more
The APNIC Blog has recently published a very interesting article by Willem Toorop of NLnet Labs on the relationship between Security Extensions for the DNS (DNSSEC) and DNS over Transport Layer Security. Willem is probably being deliberately provocative in claiming that "DoT could realistically become a viable replacement for DNSSEC." If provoking a reaction was indeed Willem's intention, then he has succeeded for me, as it has prompted this reaction. more
The period around the end of the nineteenth century and the start of the twentieth century saw a number of phenomenal advances in the physical sciences. There was J.J. Thompson's discovery of the electron in 1897, Max Planck's quantum hypothesis in 1900, Einstein's ground-breaking papers on Brownian motion, the photoelectric effect and special relativity in 1905, and Ernest Rutherford's study of the nucleus published in 1911 to mention but a few of the fundamental discoveries of the time. more
Ten years ago, I wrote an article that looked back on the developments within the Internet over the period from 1998 to 2008. Well, another ten years have gone by, and it's a good opportunity to take a little time once more to muse over what's new, what's old and what's been forgotten in another decade of the Internet's evolution... The evolutionary path of any technology can often take strange and unanticipated turns and twists. more
With the DNSSEC Root Key Rollover coming up on October 11, how prepared are we as an industry? What kind of data can we collect in preparation? What is the cost-benefit (or not) of implementing DANE? What can we learn from an existing rollover of a cryptographic algorithm? All those questions and more will be discussed at the DNSSEC Workshop at the ICANN 62 meeting in Panama City, Panama, on Monday, June 25, 2018. more
It's been nearly two months since the high profile BGP hijack attack against MyEtherwallet, where crypto thieves used BGP leaks to hijack MEW's name servers, which were on Amazon's Route53, and inserted their own fake name servers which directed victims to their own fake wallet site, thereby draining some people's wallets. It generated a lot of discussion at the time... What isn't fully appreciated is that attack has, in fact, changed the game somewhat... more
Would you like to share information about how you are using DNSSEC with the wider technical community? Do you have an idea for how to make DNSSEC or DANE work better? Or work with new applications? If so - and if you will be attending ICANN 62 in Panama City, Panama from 25-28 June 2018 - then please consider sending in a proposal to participate as a speaker in the ICANN 62 DNSSEC Workshop! more
March has seen the first of the DNS Operations, Analysis, and Research Center (OARC) workshops for the year, where two days of too much DNS is just not enough! These workshops are concentrated within two days of presentations and discussions that focus exclusively on the current state of the DNS. Here are my impressions of the meeting. more
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