What is DNSSEC?
What it does:
- Signs DNS records with cryptographic keys
- Resolvers can verify signatures
- Detects tampering or forged responses
How it works:
- Domain owner signs records with private key
- Public key published in DNS
- Resolvers verify signature chain from root
Protection provided:
- Prevents DNS cache poisoning
- Prevents man-in-the-middle DNS attacks
- Ensures authenticity of DNS data
Limitations:
- Does not encrypt DNS queries
- Does not hide what you are looking up
- Adds complexity to DNS management
Official seal on registry documents. Verifies the documents have not been altered.
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