Cryptography
Henno Brandsma's user avatar
Henno Brandsma's user avatar
Henno Brandsma's user avatar
Henno Brandsma
  • Member for 12 years, 3 months
  • Last seen more than 1 year ago
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About

Henno Brandsma (1970-2022)

Got a PhD in topology in 98, now a cryptographer and security researcher.

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99
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29
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24
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61
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24
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20
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50
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13
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11
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Top posts
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All Questions Answers
Score Newest
answer
17
Why is PuTTYgen-created RSA public exponent(e) not in {3,17,65537}?
Nov 25, 2015
answer
15
How is LUKS dm-crypt secure if the key is stored with the encrypted data?
Feb 22, 2014
answer
11
How to attack a classical cipher using known partial plaintext?
Oct 12, 2011
answer
9
What are the main weaknesses of a Playfair cipher, if any?
Oct 1, 2012
answer
8
AES Inverse Key Schedule
Dec 22, 2015
answer
8
Understanding MACs and why cleartext is sent over
Jul 8, 2018
answer
7
What causes first block of AES decryption to be garbled, even with correct IV?
Sep 16, 2011
answer
6
What are preimage resistance and collision resistance, and how can the lack thereof be exploited?
Nov 12, 2011
answer
6
AES column mixing and S-Box confusion
Dec 11, 2013
answer
6
Why is the XOR of plaintexts equal to the XOR of ciphertexts with a two time pad?
Nov 8, 2015
Top network posts
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104
Elementary proof that $\mathbb{R}^n$ is not homeomorphic to $\mathbb{R}^m$
99
A map is continuous if and only if for every set, the image of closure is contained in the closure of image
92
How secure is Chrome storing a password?
84
Projection map being a closed map
72
Is $\mathbb R^3$ the square of some topological space?

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