571 reputation
312
bio website davidlowryduda.com
location Providence, RI
age 25
visits member for 2 years, 9 months
seen Feb 12 at 3:26

I'm working on my Math PhD at Brown University. I've finished my second year, and now I pursue my interests in analytic number theory. In particular, I study automorphic forms under Dr. Jeff Hoffstein.

I happen to loosely update a math blog at mixedmath.wordpress.com. I put a lot of MSE things on there too, though a lot of the material caters to whatever class I'm teaching at the time (this fall, calc I).


Feb
12
awarded  Taxonomist
Jul
13
awarded  Yearling
Jul
13
awarded  Yearling
Jun
13
awarded  Nice Question
Apr
12
awarded  Citizen Patrol
Mar
24
awarded  Nice Answer
Dec
10
asked What other one-way functions are used in cryptosystems?
Sep
10
awarded  Scholar
Sep
10
accepted About Cryptography in a Character Language
Sep
10
answered Basic explanation of Elliptic Curve Cryptography?
Sep
2
awarded  Nice Answer
Sep
2
answered Is modern encryption needlessly complicated?
Aug
10
awarded  Editor
Aug
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awarded  Critic
Aug
10
comment The use of cribs
@Paulo I have updated my question. But I would like to point out a few things in case my new question is too long for your tastes. You say it's not interesting because of Kerckhoff's Principle - yet historically many countries have broken many other countries' encryption schemes. And they spend millions of dollars doing so. Now, we have things like RSA, El Gamal, etc - this is true. But it was not always true, and I am shocked that you think we should discount all history and historical code breaking because of a few schemes that we are pretty certain are hard to break today.
Aug
10
comment The use of cribs
@Paulo If you are asking me, do I personally have a great need to break unknown schemes, then the answer is no. I do want to learn how this was historically done. And to be honest, I'm a graduate mathematician at Brown, and I have a group of friends that creates ciphers for the others to break. So in a sense, yes, but it's not imperative.
Aug
10
revised The use of cribs
added 2559 characters in body
Aug
10
asked The use of cribs
Jul
28
comment About Cryptography in a Character Language
Unless I am mistaken, Japanese and Chinese are completely different written languages, functionally speaking. The various Japanese kana alphabets are entirely syllabic and phonetic. Although they have more than 26 characters, they only have 48 each. Chinese is typically written via pictograms and ideograms, and there are dozens of thousands of different symbols. I am very familiar with Codebreakers and Japanese ciphers, but I do not think that such techniques lend themselves easily to Chinese. But I do not know much about Chinese, so perhaps I am wrong.
Jul
27
awarded  Student