12,508 reputation
11352
bio website vyznev.net
location Helsinki, Finland
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visits member for 3 years, 4 months
seen 1 hour ago

I'm a PhD student in biomathematics, working on stochastic individual-based models of evolution in spatially structured populations. My other interests include cryptography, programming games and puzzles, photography and graphic design.

Vote for me in the Mathematics.SE 2014 moderator election!


I'm the main author and maintainer of the Stack Overflow Unofficial Patch (SOUP), a user script for browsers with GreaseMonkey-compatible user script support (Firefox, Chrome, Opera, possibly Safari) that fixes or works around a number of outstanding issues with the Stack Exchange user interface.

I tend to answer a lot more questions than I ask. Some answers I'm rather proud of:

CC-Zero Please consider any (original) code I post to Stack Overflow and other Stack Exchange sites to be released under CC-Zero unless stated otherwise. You may do whatever you want with it and don't have to credit me in any way, although of course that would be nice.


Aug
28
answered Solution with high decryption cost and low encryption cost
Aug
28
comment Solution with high decryption cost and low encryption cost
Alas, this does not meet the 100,000+ messages/sec encryption requirement, at least not if the messages have different keys.
Aug
28
revised How would you encrypt-then-MAC when using pen-and-paper and a Caesar cipher?
edited tags
Aug
28
comment Good challenges for a crypto competition for teenagers
Sure you can do visual crypto without a computer. Just get some semitransparent graph paper and color in the squares. The resolution won't be too great, but you should be able to make some recognizable images.
Aug
28
revised Good challenges for a crypto competition for teenagers
nicer link syntax
Aug
28
wiki created education description
Aug
28
wiki created education excerpt
Aug
28
revised Good challenges for a crypto competition for teenagers
better title, misc. copyedits, add paragraph asking for specific expertise, better tags
Aug
28
reviewed Leave Open Good challenges for a crypto competition for teenagers
Aug
28
comment Good challenges for a crypto competition for teenagers
Honestly, I think this could be a good subjective question, and I don't think the closing reason quoted by @e-sushi really applies (as the question is really asking for answers based on expertise, not for purely personal opinions). That said, the current bunch of answers isn't particularly inspiring. I really wish someone would come up with at least one really good, comprehensive answer to set the proper tone here.
Aug
22
awarded  Yearling
Aug
19
reviewed Leave Open Simple proof that shows AES is not a uniform permutation on any n-bit string?
Aug
19
reviewed Leave Open Rely on NSA Suite B Cryptography?
Aug
9
answered How many degrees of freedom up my sleeve?
Aug
9
reviewed Leave Open How many degrees of freedom up my sleeve?
Aug
9
reviewed Close Algebraic Normal Form Piccolo
Aug
9
reviewed Leave Open AES256-CBC vs AES256-CTR in SSH
Aug
9
reviewed Close Currently i am doing decryption for RSA encoding and i face some problem with it
Aug
9
reviewed Leave Open Theoretical attack on RSA
Aug
9
comment Recover from compromised shares with Shamir Secret Sharing
+1. Of course, it's worth noting that the dealer still needs to be trusted; a malicious dealer could construct their polynomial with a non-zero constant term, thereby changing the secret (potentially to one of their choosing, if they can guess the original secret).