DNS Root KSK Rollover Radar & Cryptographic Health
Authoritative operational tracker for the Internet DNS Root Zone Key Signing Key (KSK). Monitors root trust anchor rollovers, cryptographic key ceremonies held at secure Key Management Facilities (KMFs), RFC 5011 automated update state, and the global migration toward elliptic curve cryptography (ECDSA P-256).
Inside the ICANN DNS Root Key Ceremony Architecture
The security of the entire global Domain Name System depends on the root trust anchor: a cryptographic key pair held in tamper-evident Hardware Security Modules (HSMs) situated inside secure Key Management Facilities (KMFs) in Culpeper, Virginia and El Segundo, California.
Every calendar quarter, IANA conducts an open, live-streamed Key Signing Ceremony. To access the master HSM, a quorum of independent volunteers known as Trusted Community Representatives (TCRs) must physically arrive with physical safe deposit box keys and smartcards. No single human being or organization holds unilateral power to decrypt the root keys.
Under RFC 5011, modern validating resolvers automatically learn and trust newly published keys (such as KSK-2024) after a mandatory 30-day standby hold-down timer, preventing widespread outages when old keys are retired.
Root Zone Key Signing Key (KSK) Lifecycle Inventory
| Key Tag | Key Label | Lifecycle State | Algorithm & Size | Generated | Activated | Retired | SHA-256 Digest (RFC 7958) | Operational Role |
|---|---|---|---|---|---|---|---|---|
| 20326 | KSK-2017 | Active Anchor | Algorithm 8 (RSA/SHA-256) (2048-bit) | 2016-10-27 | 2018-10-11 | Scheduled 2026 | E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC683457104237C7F8EC8D | Current production trust anchor signing the Root Zone ZSK and root delegations worldwide. |
| 38445 | KSK-2024 | Published / Standby | Algorithm 8 (RSA/SHA-256) (2048-bit) | 2024-04-25 | Pending Rollover Completion | Active Horizon | 5F4C74B1E91C63B4F329411985474D95726B1E63C2522B0033B3673B8A8A1C90 | Successor trust anchor published in the root zone to enable RFC 5011 automated validator synchronization. |
| 19036 | KSK-2010 | Revoked / Retired | Algorithm 8 (RSA/SHA-256) (2048-bit) | 2010-06-16 | 2010-07-15 | 2019-01-11 | 49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5 | Inaugural DNS root key that established the signed global DNS hierarchy. Formally revoked. |
Root Zone Delegation Cryptographic Algorithm Distribution
| Cryptographic Algorithm | TLD Delegation Count | Share of Total Root Zone | Architectural Notes |
|---|---|---|---|
| Algorithm 8: RSA/SHA-256 | 1320 | 82.8% | Current root and legacy standard |
| Algorithm 13: ECDSA Curve P-256 | 158 | 9.9% | Fast, compact 64-byte elliptic curve signature |
| Algorithm 15: Ed25519 | 2 | 0.1% | High-speed modern Edwards-curve cryptography |
| Unsigned Delegations | 115 | 7.2% | Legacy ccTLDs without DS records in root |
Audited IANA Key Management Ceremony Log
| Ceremony | Execution Date | Secure Key Management Facility | Operational Quarter | TCRs Present | Audit Verification & Outcome |
|---|---|---|---|---|---|
| #52 | 2025-02-12 | Culpeper, Virginia (East Coast KMF) | Q1 2025 Root Signing | 7 Officers | Successful generation of signed ZSK bundles for Q2 2025 and KSK-2024 readiness validation. |
| #51 | 2024-11-06 | El Segundo, California (West Coast KMF) | Q4 2024 Root Signing | 8 Officers | Executed scheduled ZSK signing and audited HSM safe deposit box tamper seals. |
| #50 | 2024-08-14 | Culpeper, Virginia (East Coast KMF) | Q3 2024 Root Signing | 7 Officers | Routine quarterly root signing ceremony and smartcard credential rollover audit. |
| #49 | 2024-04-25 | Culpeper, Virginia (East Coast KMF) | Milestone KSK-2024 Generation | 9 Officers | Cryptographic generation of the new 2048-bit Root Key Signing Key (KSK-2024, Key Tag 38445). |
Root Trust Anchor Verification Guidelines
System administrators configuring DNSSEC-validating recursive resolvers (BIND 9, Unbound, PowerDNS Recursor, Knot Resolver) can independently verify the root trust anchor using the ICANN trust anchor repository (data.iana.org/root-anchors).
RFC 5011 automated trust anchor update mechanisms automatically configure resolvers to accept KSK-2024 as the primary signing key once ICANN initiates the active rollover cycle, eliminating manual intervention across hundreds of millions of caching nameservers.