post-quantum

Quantum Computers Need Vastly Fewer Resources Than Thought to Break Vital Encryption

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Recent research shows that building a quantum computer capable of breaking 256-bit elliptic-curve cryptography (ECC) requires far fewer qubits and resources than previously estimated, potentially compromising critical encryption much sooner than expected. One study demonstrated that neutral-atom qubits could break ECC-256 in 10 days with 100 times less overhead, while Google researchers showed quantum circuits breaking ECC on Bitcoin within nine minutes using 20 times fewer resources, highlighting accelerating progress in cryptographically relevant quantum computing.

https://arstechnica.com/security/2026/03/new-quantum-computing-advances-heighten-threat-to-elliptic-curve-cryptosystems/

Cultivating a Robust and Efficient Quantum-safe HTTPS

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Google's Chrome team is rolling out a program to implement quantum-safe HTTPS certificates using Merkle Tree Certificates (MTCs), which increase efficiency and transparency without compromising security. MTCs replace traditional certificate chains, reducing bandwidth usage while adopting post-quantum cryptography. The rollout has three phases: testing MTCs with existing certificates, inviting log operators for public MTCs, and establishing a new root store for MTCs. This initiative aims to ensure a robust, efficient, and scalable approach to enhanced web security amid evolving quantum threats.

https://security.googleblog.com/2026/02/cultivating-robust-and-efficient.html

Future of Quantum-Safe Networks Rests on Interoperable Standards

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The article emphasizes cybersecurity advancements, particularly quantum key distribution (QKD), which is vital for secure, future-proof communications as quantum computing evolves. Establishing interoperable standards is essential for QKD's successful deployment, ensuring security across various industries and maintaining trust in digital infrastructure.

https://www.darkreading.com/endpoint-security/securing-future-building-quantum-safe-networks-today

Why Signal’s Post-quantum Makeover Is an Amazing Engineering Achievement

Signal Protocol has undergone a significant update to enhance its quantum resistance, crucial as quantum computing could undermine current encryption methods. The upgrade introduces a third “Sparse Post Quantum Ratchet” (SPQR), ensuring secure messaging against potential quantum attacks. This complex engineering feat maintains its robust performance while adapting to the challenges posed by larger quantum-safe keys and asynchronous messaging environments. The result is a groundbreaking achievement in cryptography, ensuring user security remains intact amid future technological threats.

https://arstechnica.com/security/2025/10/why-signals-post-quantum-makeover-is-an-amazing-engineering-achievement/

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