Posts
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End of 10
Maybe an opportunity to consider switching to Linux for some Windows 10 users.
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Reading a 48-year old paper
The seminal Rivest, Shamir, Adleman (RSA) paper from 1977. A blast from the past, and a real treat (especially for a student of cryptography) to finally read it!
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DIY invmod
def invmod(a, n): """Return s, the inverse of a: gcd(a,n)=1=as+nt.""" d, s, t = egcd(a, n) assert d == 1 return s % n -
Beware the STN
Do those of us who work in tech have moral duties? If you don’t think so, I can recommend a paper that might change your mind.
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Can you still see the penguin??
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ECB CBC WTF
For anyone studying block cipher modes of operation, consider testing what you know with this hands-on challenge – hosted on the excellent CryptoHack platform.
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cryptopals challenge 12
This was a fun one involving a chosen plaintext attack on an ECB oracle, so worth a short write-up.
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Four years of self-directed study
Books I read, courses I took, and hands-on challenges I can recommend since career-pivoting in 2021. Sharing here in case it helps others chart their own learning.
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M136279841 found
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An (abridged) origin story
How did I get into software and security? Certainly not the direct route, if there is such a thing.
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On secure coding training
Can secure coding be learned? Can it be taught?
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Loren Kohnfelder's book
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