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Cloudflare's transition to a public Certificate Authority represents a critical infrastructure shift toward post-quantum cryptography, specifically addressing scalability issues with large signatures via Merkle Tree Certificates. This move directly impacts the Web PKI ecosystem by enabling high-scale issuance of quantum-resistant certificates while maintaining backward compatibility for legacy devices. The initiative is essential for mitigating "harvest now, decrypt later" threats and establishing a robust foundation for the internet's security in the post-quantum era.
Cloudflare Launches Public Certificate Authority to Secure the Web Against Quantum Threats

Cloudflare is becoming a public Certificate Authority (CA) to secure the web against quantum threats by introducing an open, automated, and high-scale issuance service. This initiative will provide both classical TLS certificates and next-generation Merkle Tree Certificates (MTCs) to prevent widespread web outages and combat "harvest now, decrypt later" adversary campaigns. By acquiring GlobalSign's Root CA key material and applying for inclusion in major root programs, Cloudflare aims to establish immediate backward compatibility and build standing under emerging browser policies. The post Cloudflare Launches Public Certificate Authority to Secure the Web Against Quantum Threats appeared first on Quantum Computing Report.
Connectivity cloud company Cloudflare (NYSE: NET) has announced its intention to become a public Certificate Authority (CA), introducing an open, automated, and high-scale issuance service designed to transition the Web Public Key Infrastructure (Web PKI) into the post-quantum era. Announced during the company’s annual Birthday Week, the initiative establishes an independent, globally…
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