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jsc

155 karma · joined March 21, 2008

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jsc··on Faster Space-Efficient Algorithms for Subset Sum, K-Sum and Related Problems
This is actually slower than previous art, but with proven complexity. Namely the algorithm in http://eprint.iacr.org/2011/474.pdf runs in time 2^0.72n and constant memory, but is heuristic only.
jsc··on Periodis Web – A Historical Atlas and Gazetteer of Europe from Year 1 to 2000
Frontiers of Europe from -500 to 2013.

https://itunes.apple.com/app/id543207391

jsc··on An implementation of Fully Homomorphic Encryption
see Table 3 in http://eprint.iacr.org/2011/440.pdf
jsc··on Divisibility by 7
This is essentially Montgomery reduction, widely used in cryptographic implementations.

http://en.wikipedia.org/wiki/Montgomery_reduction

jsc··on Ask HN: Best Philosophical Books?
Actually Jean-Francois Revel did not have a PhD (he explains why in his autobiography "Le voleur dans la maison vide").
jsc··on Why RSA encryption padding is critical (cool RSA implementation flaw)
A generalization of the attack (and many more attacks) is given in: http://crypto.stanford.edu/~dabo/papers/RSA-survey.pdf
jsc··on You weren't meant to have a boss
Great essay.

I work at university (as assistant prof. in CS, not in US), and it feels a lot like working in a big corporation.

The difference is that we are free to do what we want. But this is because nobody cares about what we do, so it might be even worse in the long term.