lattice-cryptography
8 posts tagged lattice-cryptography.
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Never Decrypted: Reading the Row Without Revealing Which Row
Private information retrieval lets a server answer your query without ever learning which row you asked for -- the 1995-to-2026 mechanism and its honest cost.
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How Fully Homomorphic Encryption Would Break: The Seams Above the Lattice
Fully homomorphic encryption computes on data it never decrypts. Its likeliest failure is not the post-quantum lattice beneath it, but the scheme layer above.
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Never Decrypted: How Fully Homomorphic Encryption Computes on Ciphertext It Cannot Read
Fully homomorphic encryption computes on data it cannot read. Inside: the mechanism, the noise budget that governs it, bootstrapping, and the honest 2026 cost.
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How the NIST Finalists Broke: Rainbow in a Weekend, SIKE in an Afternoon, and the Graveyard of Post-Quantum Candidates
In 2022 two vetted NIST post-quantum candidates fell to classical math -- Rainbow in a weekend, SIKE in ten minutes. That is the process working, not failing.
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How the Whole Stack Would Break: SIDH, Correlated Assumptions, and the Cryptography We Are Betting the Next Thirty Years On
No post-quantum algorithm is proven hard. The stack's only real defense is a deliberately uncorrelated portfolio of lattice, code, and hash assumptions.
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How Falcon Would Break: NTRU Lattices and the Structure Nobody Fully Trusts
Falcon is NIST's smallest post-quantum signature and its only lattice one still in draft. A structural case for why its likeliest break is NTRU-specific.
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One Event, Three Assumptions, Five Answers: A Field Guide to the Post-Quantum Toolkit
A field guide to the five NIST post-quantum primitives -- ML-KEM, ML-DSA, SLH-DSA, FN-DSA, HQC: math intuition, exact sizes, failures, and decision rules.
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The Thirty-Year Migration Ships in a pip install: How Post-Quantum Cryptography Crossed from Standard to Shipping Code
Post-quantum cryptography spent thirty years reaching a pip install. ML-KEM and ML-DSA shipped in pyca/cryptography v48 weeks ahead of the federal deadline.