Use dev-python/cryptography to enable low-level DNSSEC RSA, DSA, ECDSA and EdDSA signature validation.

Packages describing “dnssec” as local USE flag

Package “dnssec” Flag Description
dev-python/dnspython Use dev-python/cryptography to enable low-level DNSSEC RSA, DSA, ECDSA and EdDSA signature validation.
net-dns/dnsmasq Enable support DNSSEC validation and caching.
net-vpn/libreswan Use DNSSEC resolver (requires net-dns/unbound)

All packages providing a “dnssec” USE flag (3)