What is Hackers' Pub?

Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.

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OK, I think I have a reasonably efficient table driven implementation of the 100baseTX scrambler LFSR, capable of predicting future scrambler states with offsets of up to 2^30-1 in constant time.

I still don't grok the math. I ended up doing this by essentially bruteforcing the algebraic solution, creating a class representing a 11th-order polynomial with boolean coefficients symbolically and evaluating the LFSR in a loop 1, 2, 4, 8, 16, etc. times.

The table generator logic would keep track of which starting bits had been xor'd into which state bits, move state bits as the LFSR advanced, cancel out double XORs, etc.

In the end I got a 30 x 11 lookup table that I can just iterate over and xor.

github.com/ngscopeclient/scope

The journey was definitely not the cleanest mathematically, but I've tested pretty thoroughly and it gives identical results to iterating the LFSR.

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♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

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Dear Fedi friends, it's official. I have become a Fediverse "reply guy" offering unsolicited tech advice.

I just realized this now (re: https://mastodon.social/@_elena/115848079534897140) 😂​

Sorry! But also... not sorry?

Hope you're all having a lovely day!

My number one objective today is not to slip and fall because sidewalks in Paris are an icy death trap (at least in this neighborhood)

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Thanks everyone who were at the Post-Platform Digital Publishing workshops at ! It was great to meet you all, and talk about RSS feeds for DIY digital publishing, AI crawlers, online and offline piracy methods, and more stuff. We added a short summary of what we discussed during the workshops to the PPDPT wiki: toolkit.wellgedacht.org/doku.p

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개인의 양심은 한 생의 가치관을 따라 켜켜이 쌓이고, 때로는 외압과 권력 앞에 무너지기도 한다. 그러기에 우리 헌법이 개인의 양심의 자유를 헌법의 이름으로 보호하고자 하는 것이다. 과정에서 다소 흔들렸을지라도, 한 사람이 생의 절반을 신념을 지키기 위해 버텼다. www.hani.co.kr/arti/opinion...

얼마나 더 ‘양심’적이어야 하나 [똑똑! 한국사회]

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Fun fact: Student loans in Canada are forcing young and old people to file bankruptcy. This is so fucked up folks.

They are destroying people's lives. The interest is higher than the banks. Mark Carney needs to deal with this fucked up mess that S Harper made with the banks.

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인생의 작은 지혜들

1. 실패는 경험의 또 다른 이름이다
2. 내일의 꿈을 위해 오늘 작은 한 걸음을 내딛어라
3. 자신을 사랑하는 것이 가장 큰 성공이다
4. 긍정의 마음은 모든 어려움을 이겨낸다
5. 후회보다는 도전을 선택하라
6. 작은 것에 감사할 줄 아는 태도가 진정한 행복이다

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개인의 양심은 한 생의 가치관을 따라 켜켜이 쌓이고, 때로는 외압과 권력 앞에 무너지기도 한다. 그러기에 우리 헌법이 개인의 양심의 자유를 헌법의 이름으로 보호하고자 하는 것이다. 과정에서 다소 흔들렸을지라도, 한 사람이 생의 절반을 신념을 지키기 위해 버텼다. www.hani.co.kr/arti/opinion...

얼마나 더 ‘양심’적이어야 하나 [똑똑! 한국사회]

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@whitequark✧✦Catherine✦✧ so I'm working on a portable network diagnostic tool à la Linkrunner on RP2350+WizNet.
I'm about to rewrite my janky proof-of-concept (micropython+LWIP+terrible hacks) into rust, and smoltcp is not only right there and beautifully readable, but also @TalesFromTheArmchairPeter Hartley has written a lovely minimal driver for W5x00 for me to build on.
Exciting to have nice tools to work with!

Hopefully I can get it polished up enough to contribute LLDP (and later CDP) support to smolTCP upstream! Unless it's too niche to be wanted.

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✏️ 5 accessibility checks to run on every component zeroheight.com/blog/5-accessib

I guest-posted on zeroheight's blog about accessibility of components!

(note: WCAG compliance is claimed on full pages/processes only)

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@ 아이폰 좋은점에 또 에어드랍을 들던거 같기도 한데 그거 갤럭시도 설정 어찌저찌하면 할수 있다고 읍내에서 그랬었던

제가 아이폰 11년째 사용 중인 유저인데요
배터리 탈락 문제 때문에 에어드랍을
단 한 번도 켜보고 다녀본 적이 없습니다

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