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I've written recently about a general purpose method called DNS Response Policy Zones (DNS RPZ) for publishing and consuming DNS reputation data to enable a market between security companies who can do the research necessary to find out where the Internet's bad stuff is and network operators who don't want their users to be victims of that bad stuff... During an extensive walking tour of the US Capitol last week to discuss a technical whitepaper with members of both parties and both houses of the legislature, I was asked several times why the DNS RPZ technology would not work for implementing something like PROTECT-IP. more
As we, here in the United States celebrate our independence this Fourth of July, we are reminded that the liberties and freedoms that come with that independence have yet to be won online. As citizens of this country we are blessed with safety and security from threats both foreign and domestic, but those guarantees have not yet extended to our citizenship in the global Internet community. This is true not just for American citizens, but for all Internet users throughout the world. more
NameSmash has interviewed Garth Bruen, Internet security expert and creator of Knujon, on some key issues under discussion during the recent ICANN meetings in San Francisco. Topics include Whois, DNS Security Extensions (DNSSEC) and generic Top-Level Domains (gTLDs) -- issues of critical importance particularly with ICANN's expected roll-out of thousands of new gTLDs in the coming years. more
DNSSEC adoption has been slow, but is now picking up speed, thanks to organizations leading the way. ... While some registries have already signed, some have announced plans to sign and others are still trying to figure out their plan. Either way, DNSSEC is here. How can we make DNSSEC adoption quicker and easier not only for the registry but for individual name owners? more
Earlier this week in a press release, VeriSign said that they are selling their SSL certificate business to Symantec. VeriSign is the dominant player in this market, having absorbed competitor Thawte in 1999, and Geotrust in 2006. Three years ago, when VeriSign decided to divest its non-core businesses, they kept the certificate business. So what's changed? more
In 2008 KnujOn published a report indicating that 70 ICANN accredited Registrars had no publicly disclosed business location. The fundamental problem was one of community trust and consumer faith. Registrars extend their legitimacy to their domain customers who then transact and communicate with the public. more
With the Online Trust Alliance Town Hall Meeting and Email Authentication Roundtable next week as well as the RSA Conference, I decided to pause and think about where we are and where we might be headed with regard to email authentication. Over the years, many of us have collectively worked to provide a framework for authenticating email... more
Recent collaborative test by Core Competence and Nominet have concluded that 75% of common residential and small SOHO routers and firewall devices used with broadband services do not operate with full DNSSEC compatibility "out of the box". The report presents and analyzes technical findings, their potential impact on DNSSEC use by broadband consumers, and implications for router/firewall manufacturers. Included in its recommendations, the report suggests that as vendors apply DNSSEC and other DNS security fixes to devices, consumers should be encouraged to upgrade to the latest firmware. more
As far as facebook is concerned, your email is your identification. This is true for other social networks like linkedin, and is slowly catching on to many other Web 2.0 services. It actually makes a lot of sense that your unique identifier (your "ID") would be your email -- it's unique by definition, it's easy to remember and most services need the email information anyway... So if email is destined to become the equivalent of your social security number or identification number (depending on which country you live in) how do we proof check that the email address we typed does not contain any typos? more
A recent story today about discussions for an official defense Botnet in the USA prompted me to post a question I've been asking for the last year. Are some of the world's botnets secretly run by intelligence agencies, and if not, why not? Some estimates suggest that up to 1/3 of PCs are secretly part of a botnet. The main use of botnets is sending spam, but they are also used for DDOS extortion attacks and presumably other nasty things like identity theft. But consider this... more
ICANN has been wrangling about WHOIS privacy for years. Last week, yet another WHOIS working group ended without making any progress. What's the problem? Actually, there are two: one is that WHOIS privacy is not necessarily all it's cracked up to be, and the other is that so far, nothing in the debate has given any of the parties any incentive to come to agreement. The current ICANN rules for WHOIS say, approximately, that each time you register a domain in a gTLD (the domains that ICANN manages), you are supposed to provide contact information... WHOIS data is public, and despite unenforceable rules to the contrary, it is routinely scraped... more
A student at a well-known US university wrote me and asked whether, given the huge national interest in getting the industry to unite behind (at least) one format, did I think that the FTC should've played a stronger role in pushing the industry to adopt an authentication format? I said: Nope. Part of the reason it's taking so long to agree on a standard is that the process is infested with academic theoreticians who are more interested in arguing about hypotheticals and pushing their pet spam solutions than in doing something useful... more
My OECD paper on spam problems in developing economies is now linked from the OECD Anti-Spam Toolkit page, as part of section 8 of the Anti-Spam Toolkit (Outreach). This ZDNet article provides a reasonably good summary of my paper as well. I welcome comments and suggestions from CircleID readers. "Spam is a much more serious issue in developing countries as it is a heavy drain on resources that are scarcer and costlier in developing countries than elsewhere..." more
There is a published spoofing attack using homographs IDN. By using a Cyrillic SMALL LETTER A (U+430), Securnia is able to pretend to be http://www.paypal.com/. Actually this is well-documented in RFC 3490 under the Security Consideration: "To help prevent confusion between characters that are visually similar, it is suggested that implementations provide visual indications where a domain name contains multiple scripts. Such mechanisms can also be used to show when a name contains a mixture of simplified and traditional Chinese characters, or to distinguish zero and one from O and l..." more
As an advisory committee, our focus is to give ICANN and the community our best advice regarding security and stability issues for the domain name system and the addressing system. We are not a standards, regulatory, judicial or enforcement body; those functions belong elsewhere. As we all know, VeriSign is in the process of suing ICANN on a number of matters, including ICANN's response to their registry change last September. Although VeriSign now contends that a number of us on the committee are "Site Finder co-conspirators" the next steps are really up to the ICANN board, the ICANN staff and the many members of the technical and operating community who run the domain name system. I'll be happy to interact with the members of the community here on CircleID as time permits. more