waving android

I am currently a software engineer at Google, where as a member of the Android platform team I build frameworks and user interfaces.

The blog here at is mostly historical; you can find more recent posts on .

Cryptanalysis puzzle

April 1st, 2004



OK, math majors. Here’s a little
cipher for you to break
. (I spent a few hours on it, and came up
with some interesting observations, but no plaintext yet (besides
the obvious first part).) The clock is ticking—how quickly can the
reader(s) of dsandler.org break the encoding?

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