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In my last article, I described efforts underway to standardize new cryptographic algorithms that are designed to be less vulnerable to potential future advances in quantum computing. I also reviewed operational challenges to be considered when adding new algorithms to the DNS Security Extensions (DNSSEC). In this post, I'll look at hash-based signatures, a family of post-quantum algorithms that could be a good match for DNSSEC from the perspective of infrastructure stability. more
On January 14, 2021, the Office of the United States Trade Representative (USTR) released its 2020 Review of Notorious Markets for Counterfeiting and Piracy (the Notorious Markets List, or NML). This publication enumerates online and physical markets that have been reported to engage in trademark, counterfeiting, and copyright infringement at scale. For the first time, the NML documents show how internet platforms play a part in bringing illicit goods into the US. more
As chance has it, the attempt by NTIA to create a fake Trump Open 5G Security Framework MAGAverse as they headed out the door on 15 January is being followed this week by the global meeting of 3GPP SA3 (Security) to advance the industry's real open 5G security Framework. Designated TSGS3-102e (the 102nd meeting, occurring electronically), it continues the practice of assembling companies, organisations, and agencies from around the world every 8 to 12 weeks to focus on 5G security for current and future releases of 5G infrastructure. more
We all use the Internet daily. Practically every element of our reality has its equal in the virtual realm. Friends turn into social media contacts, retail establishments to e-commerce shops, and so on. We can't deny that the way the Internet was designed, to what it has become, differs much. One example that we'll tackle in this post is the seeming loss of connection between domains and their distinguishable owners. more
A name collision occurs when a user attempts to resolve a domain in one namespace, but it unexpectedly resolves in a different namespace. Name collision issues in the public global Domain Name System (DNS) cause billions of unnecessary and potentially unsafe DNS queries every day. A targeted outreach program that Verisign started in March 2020 has remediated one billion queries per day to the A and J root name servers, via 46 collision strings. more
In my previous post, I described the first broad scale deployment of cryptography in the DNS, known as the Domain Name System Security Extensions (DNSSEC). I described how a name server can enable a requester to validate the correctness of a "positive" response to a query -- when a queried domain name exists -- by adding a digital signature to the DNS response returned. more
As one of the earliest protocols in the internet, the DNS emerged in an era in which today's global network was still an experiment. Security was not a primary consideration then, and the design of the DNS, like other parts of the internet of the day, did not have cryptography built in. Today, cryptography is part of almost every protocol, including the DNS. And from a cryptographer's perspective, as I described in my talk at last year's International Cryptographic Module Conference (ICMC20), there's so much more to the story than just encryption. more
Two months ago, the Federal Bureau of Investigation (FBI) alerted the public to a list of domains that could easily be mistaken to be part of its network. The list of artifacts contained a total of 92 domain names, 78 of which led to potentially malicious websites, while the remaining 14 have yet to be activated or are no longer active as of 23 November 2020. more
There is a new threat in town known as "SAD DNS" that allows attackers to redirect traffic, putting companies at risk of phishing, data breach, reputation damage, and revenue loss. What is SAD DNS? No, it isn't the domain name system (DNS) feeling moody, but an acronym for a new-found threat -- "Side-channel AttackeD DNS" discovered by researchers that could revive DNS cache poisoning attacks. more
Over the past several years, questions about how to protect information exchanged in the DNS have come to the forefront. One of these questions was posed first to DNS resolver operators in the middle of the last decade, and is now being brought to authoritative name server operators: "to encrypt or not to encrypt?" It's a question that Verisign has been considering for some time as part of our commitment to security, stability and resiliency of our DNS operations and the surrounding DNS ecosystem. more
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