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Entropy Attacks
The conventional wisdom is that hashing more entropy sources can't hurt: if H is any modern cryptographic hash function then H(x,y,z) is at least as good a random number as H(x,y), no matter how awful z is. So we pile one source on top of another, hashing them all together and hoping that at least one of them is good.
#nsa #nist #des #dsa #dualec #sigintenablingproject #nistpqc #foia 2022.01.29: Plagiarism as a patent amplifier: Understanding the delayed rollout of post-quantum cryptography. #pqcrypto #patents #ntru #lpr #ding #peikert #newhope 2020.12.06: Optimizing for the wrong metric, part 1: Microsoft Word: Review of "An Efficiency Comparison of Document Preparation Systems Used in Academic Research and Development" by Knauff and Nejasmic. #signatures #ecc #elgamal #schnorr #ecdsa #eddsa #ed25519 2014.02.13: A subfield-logarithm attack against ideal lattices: Computational algebraic number theory tackles lattice-based cryptography.
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