digital-signatures
4 posts tagged digital-signatures.
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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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How SLH-DSA Would Break: The Signature That Can Only Fall If a Hash Falls First
SLH-DSA has almost no attack surface of its own. A structural tour of FORS, WOTS+ hypertrees and tweakable hashes, and why it fails only if SHA-2 or SHAKE does.
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The Math Held; The Interface Leaked: A Field Guide to Digital Signatures
ECDLP and RSA held; the nonce, the canonical form, and the verifier broke instead. A field guide to ECDSA, EdDSA, RSA-PSS, determinism, and malleability.
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One Number, Used Twice: How a Repeated Nonce Hands Over Your Private Key -- and How Determinism Takes It Back
A repeated ECDSA nonce leaks your private key with grade-school algebra; a reused AES-GCM IV forges ciphertext. Why -- and how determinism fixes both.