Commumity DNS - Anycast Leaders

DNSSEC (DNS SECurity) is an emerging standard that helps users verify the authenticity of remote DNS servers. It provides assurance that the DNS server they are communicating with has been independently verified and is genuine. DNSSEC addresses several challenges in its deployment:

Domain Name Authentication

Registry operators authenticate domain owner keys for TLD zones.

Zone File Management

DNSSEC adds complexity and increases the size of the Zone Data.

User Awareness

Users must be informed and notified about DNSSEC-enabled websites.

Root Server Scaling

DNSSEC, IPv6, IDNs, and new TLDs impact Root Server scaling.

DNSSEC Forms

DNSSEC offers two forms, NSEC and NSEC3, which provide domain name authentication and verification.

An Incremental Approach: NSEC3+OptOut is a variation of DNSSEC that enables incremental compliance within specified timeframes or organizational objectives. It mitigates design vulnerabilities and reduces the impact on non-signed users and zone size.

Limitations and Error Handling

DNSSEC does not provide encryption or prevent snooping on queries, focusing on authentication and verification, and lacks an error correction mechanism but includes error recovery mechanisms to clear out failed verification data.

Chain-of-Authentication and Secure Communication

DNSSEC establishes a "chain-of-authentication," allowing end users to verify the authenticity of received zone data and providing verifiable public keys for secure and trustworthy communication.

Enhancing DNS Security and New Possibilities

DNSSEC strengthens DNS security by validating received DNS data, reducing the risk of DNS-related attacks, and opens up new application possibilities that rely on secure and authenticated DNS data, enhancing overall internet security.