cryptanalysis
6 posts tagged cryptanalysis.
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How Q-Day Breaks Everything: Shor's Algorithm and the Simultaneous Fall of RSA, Diffie-Hellman, and ECC
RSA, Diffie-Hellman, DSA, and elliptic curves share one abelian period. A single quantum computer running Shor's algorithm reads it and breaks all four at once.
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Two Standards, One Lattice: How ML-KEM and ML-DSA Would Break
ML-KEM and ML-DSA rest on one hard problem, Module-LWE, measured by one ruler. Here is how that ruler would slip -- and why one slip debits both standards.
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How RSA Would Break: Why Factoring Is the Slow Path and Coppersmith Is the Fast One
Everyone says you break RSA by factoring the modulus. That is the slowest path. A structural tour of the fast lane, the slow lane, and the quantum one.
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How SHA-2 and SHA-3 Would Break: Merkle-Damgard Collisions, Length Extension, and the Sponge's Algebraic Frontier
SHA-2 and SHA-3 have never broken, yet each construction already dictates how it would fall -- collisions, length extension, and the sponge algebraic frontier.
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The Fortress and the Afterthought: How AES Would Break at Its Key Schedule
AES is not broken -- but if it ever were, the crack would start at its linear key schedule, not its celebrated round function. A structural cryptanalysis tour.
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The Log Was Never the Weak Part: How Discrete-Log Cryptography Actually Breaks
For a well-chosen group the discrete log is optimally hard. Every faster break exploits the group's structure, not the log -- only Shor survives a clean one.