The original design of the Domain Name System did not include any security features. It was conceived only as a scalable distributed system. The Domain Name System Security Extensions (DNSSEC) attempt … See more

DNSSEC works by digitally signing records for DNS lookup using public-key cryptography. The correct DNSKEY record is authenticated via a chain of trust, starting with a set of … See more

Cryptographically proving the absence of a domain requires signing the response to every query for a non-existent domain. This is not a … See more

• RFC 2535 Domain Name System Security Extensions
• RFC 3225 Indicating Resolver Support of DNSSEC
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DNS is a critical and fundamental Internet service, yet in 1990 Steve Bellovin discovered serious security flaws in it. Research into securing it began, and progressed … See more

The Internet is critical infrastructure, yet its operation depends on the fundamentally insecure DNS. Thus, there is strong incentive to secure DNS, and deploying DNSSEC is generally considered to be a critical part of that effort. For example, the U.S. National … See more

DNSSEC deployment requires software on the server and client side. Some of the tools that support DNSSEC include:
• Windows 7 and Windows Server 2008 R2 include a "security-aware" stub resolver that is able to differentiate between secure and … See more