Domain Name System Security Extensions

The Domain Name System Security Extensions (DNSSEC) is a suite of Internet Engineering Task Force (IETF) specifications for securing certain kinds of information provided by the Domain Name System (DNS) as used on Internet Protocol (IP) networks. It is a set of extensions to DNS which provide to DNS clients (resolvers) origin authentication of DNS data, authenticated denial of existence, and data integrity, but not availability or confidentiality.

Overview

The original design of the Domain Name System (DNS) did not include security; instead, it was designed to be a scalable distributed system. The Domain Name System Security Extensions (DNSSEC) attempts to add security, while maintaining backwards compatibility. RFC 3833 documents some of the known threats to the DNS and how DNSSEC responds to those threats.

DNSSEC was designed to protect applications (and caching resolvers serving those applications) from using forged or manipulated DNS data, such as that created by DNS cache poisoning. All answers from DNSSEC protected zones are digitally signed. By checking the digital signature, a DNS resolver is able to check if the information is identical (i.e. unmodified and complete) to the information published by the zone owner and served on an authoritative DNS server. While protecting IP addresses is the immediate concern for many users, DNSSEC can protect any data published in the DNS, including text records (TXT), mail exchange records (MX), and can be used to bootstrap other security systems that publish references to cryptographic certificates stored in the DNS such as Certificate Records (CERT records, RFC 4398), SSH fingerprints (SSHFP, RFC 4255), IPSec public keys (IPSECKEY, RFC 4025), and TLS Trust Anchors (TLSA, RFC 6698).

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Domain_Name_System_Security_Extensions

Latest News for: dnssec

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Observing DNSSEC key life cycles (APNIC Pty Ltd)

Public Technologies 20 Sep 2021

Earlier (but not 'early') in my career I had a hand in developing the Domain Name System Security Extension (DNSSEC) ... But DNSSEC was a research project, so in place of requirements, developers set expectations of what needed to be done and what could be done to solve the DNS security problem ... What can we learn from DNSSEC key lifecycles?.

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Multi-Signer DNSSEC models (APNIC Pty Ltd)

Public Technologies 25 Aug 2021

If these organizations are additionally deploying DNS Security Extensions (DNSSEC - a system to verify the authenticity of DNS data), this can pose some challenges depending on the specific features in use ... The zone transfer model can support DNSSEC just fine, has been deployed in the field successfully, and is well understood.

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Assessing DNSSEC with EdDSA (APNIC Pty Ltd)

Public Technologies 18 Jun 2021

Using ECDSA with curve P-256 in DNSSEC has some advantages and disadvantages relative to using RSA with SHA-256 and with 3,072-bit keys ... This is relevant because DNSSEC stores and transmits both keys and signatures.'. RFC 6605, Elliptic Curve Digital Signature Algorithm (DSA) for DNSSEC, P ... The DNSSEC test uses three URLs.

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DNSSEC: How It Works & Key Considerations (Akamai Technologies Inc)

Public Technologies 19 Mar 2021

One primary example is Domain Name System Security Extensions (DNSSEC) ... DNSSEC was thus introduced to add a layer of authenticity and integrity to DNS responses ... DNSSEC Basics. Unlike TLS-secured protocols, DNSSEC does not encrypt data over the wire ... DNSSEC protects against this attack vector by introducing the Next Secure (NSEC) record ... Why DNSSEC?.

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Putting DNSSEC signers to the test: Knot vs Bind (APNIC Pty Ltd)

Public Technologies 25 Feb 2021

In 2010, it was an easy decision to use a commercial DNSSEC signer to deploy DNSSEC on APNIC's reverse zones ... In 2019, RFC8664 (Algorithm Implementation Requirements and Usage Guidance for DNSSEC) was released ... The whole process took about a week to complete, without breaking the DNSSEC chain of trust ... Automatic DNSSEC zone signing.

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How to get own authoritative Nameservers? + offer DNSSEC to customers.

Web Hosting Talk 04 Jan 2021

1 ... 2. "You need to be able to offer DNSSEC to all your customers for the ccTLD domains. If you're unable to do so you need to point the customers to where they can get DNSSEC added to their domain name.." ... ....

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DNSSEC: The long and bumpy road of algorithm deployment (APNIC Pty Ltd)

Public Technologies 01 Dec 2020

DNS Security Extensions (DNSSEC) support a range of cryptographic signing algorithms, from modern Edwards curve-based algorithms such as Ed25119, to DSA/SHA1 from the 1990s. These algorithms are at the heart of DNSSEC but need to be replaced occasionally.

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Why has DNSSEC increased in some economies and not others?

Public Technologies 10 Jul 2020

Why is DNSSEC penetration so low in Japan? ... According to those we interviewed, this 55% jump in 2018 was the result of the regulatory body, the Telecommunications Information Technology Commission (CITC), setting key performance indicators for the penetration rate of DNSSEC validation and enforcing DNSSEC validation for ISPs.

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Lessons from deploying DNSSEC in Mongolia

Public Technologies 04 May 2020

To secure this, we have secured our domain name using Domain Name Security Extensions (DNSSEC) - a set of security extensions I learned about during the workshop ... The most essential part of deploying DNSSEC was to understand what it is and how it works ... From my experience, deploying DNSSEC on the authoritative server was not complicated.

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cPanel DNSSEC & Openprovider DNS in your own DNS Manager For WHMCS 2.14.0!

Web Hosting Talk 29 Apr 2020

1. Last Call. 20% OFF Custom Projects. Let�s face it. when you run a web hosting business, the sole fact of whether you use the perfectly reliable software or not may be a life-or-death situation for the entire company ... 2 ... Feel free to take advantage of the newly introduced DNSSEC support for cPanel servers to enhance their safety ... 3 ... Control Panels ... CMS .

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Microsoft to add DANE and DNSSEC support to Exchange Online servers

ZDNet 08 Apr 2020

Support for both protocols to roll out in two phases, with the last completing by the end of 2021 ... .

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Deploying DNSSEC in a large enterprise

Public Technologies 25 Feb 2020

The Domain Name System Security Extensions (DNSSEC) is a suite of specifications for securing certain kinds of information provided by the Domain Name System (DNS) ... Deploying DNSSEC at Salesforce ... At Salesforce, we started our DNSSEC deployment by analysing our zones and finding third-party providers that satisfied our DNSSEC requirements.

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Internet’s safe-keepers forced to postpone crucial DNSSEC root key signing ceremony – no, not a ...

The Register 13 Feb 2020

Online security process stalled by offline security screw-up The organization that keeps the internet running behind-the-scenes was forced to delay an important update to the global network – because it was locked out of one of its own safes ... .

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Why dynamic DNS mapping prevents DNSSEC deployment

Public Technologies 31 Jan 2020

To address its security challenges, DNS Security Extensions (DNSSEC) were introduced to augment the authenticity and integrity of the original DNS design, where each DNS record (set) is signed by the signer's private key and the signature (RRSIG record) is validated via the signer's public key (DNSKEY record) ... Why DNSSEC deployment remains so low.

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SHA-1 chosen prefix collisions and DNSSEC

Public Technologies 17 Jan 2020

SHA-1 is deprecated but still used in DNSSEC, and this collision attack means that some attacks against DNSSEC are now merely logistically challenging rather than being cryptographically infeasible ... Attackers can use a SHAmbles prefix collision to spoof the DNS despite DNSSEC ... A DNSSEC signature covers a bit more than just the signed records.