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Orr Dunkelman

@CryptoOrrDun@ioc.exchange
mastodon 4.8.0-alpha.3+glitch
  • Open on ioc.exchange

CS, Cryptography, Cryptanalysis, Privacy, Biometrics, Computer Security.

Personal account at @mkilmo @tooot.im (though mostly in Hebrew).

Also @CryptoOrrDun@ioc.exchange (on twitter).

0 Followers
0 Following
17 Posts
Joined November 11, 2022
Website:
https://www.cs.haifa.ac.il/~orrd
Pronouns:
He/Him
Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 2mo ago
Replying to
@SteveBellovin@infosec.exchange @cryptomancer The short answer: They improve an attack from 2013 (Derbez et al.), based on our improvement from 2010, of an attack by Demirci and Selcuk. They save a byte guessing in a very innovative way, but I am not sure that the true gain is x200 to x800 (or more precisely, I am sure that the ALGORITHMIC gain is not that big, but as they can access smaller tables, then it may be faster in real life).
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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 43mo ago

Linux is the worst form of OS - except for all the others that have been tried.

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 33mo ago

et tu brute force?

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 34mo ago

IKEA Israel informs costumers that their usernames and passwords (and some more data) was lost to a data breach.

What surprises me the most is not the fact that in 2021 they had a system with passwords.

I am shocked to learn that unlike the IKEA brand, the passwords were stored in a complete form, and not as a sequence of characters that you need to assemble on your own.

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 35mo ago

From the assembler to the C
After malloc you must free

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 42mo ago

So conservatives view affirmative actions as privilege descalation attacks?

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 33mo ago

"Did you assume my sender?" - how some mailer make it hard for spam filters.

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 34mo ago

@hananc@tooot.im Bullshit.

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 41mo ago

So, should we all agree to call them data satanists?

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 42mo ago

Well, how broken is academic publishing?

I got a spear-phishing email posing as a colleague who needs access to a paper behind a paywall.

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 43mo ago

Sorry. Your reviews will be slightly delayed (third demonstration in three days)

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 43mo ago

@SteveBellovin@mastodon.lawprofs.org In the 90's the news on the Israeli radio would remind you that today is the birthday of Leonardo da Vinci, so computer owner are advised against turning on their machines due to the Mona Lisa virus.

Try explaining your students in the computer security course what is a broadcast radio station.

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 22mo ago

@37edo@tooot.im @mkilmo@tooot.im
1. זה היה בשביל הצחוק.
2. הרגלי תכנות נכונים הם די חשובים - וזה אומר שאחרי שביצעת malloc אחריותך לבצע free.

נכון, לא חייבים, אבל אתה בעצם סומך על זה שמישהו ינקה אחריך, וזה 1. לא תמיד נכון (תהיינה פלטפורמות שזה לא יקרה) ו-2. אתה מגדיל את הנחות האמון שלך. וזה לא מומלץ.

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 33mo ago

@bruteforce@mamot.fr Go home Yankees!

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 35mo ago

@mattblaze@federate.social went out to rake in the garden while blasting Vivaldi's the four seasons.

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 40mo ago

So, Daniel Ellsberg passed away. And this is an opportunity to ask who did a greater service to the US by publishing confidential information:

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Open post
Orr Dunkelman @CryptoOrrDun@ioc.exchange
· 41mo ago

If your http server doesn't answer with this .jpg to any request, don't speak with me.

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