Hacker News: doomjunky

New comment by doomjunky in "AWS to begin charging for public IPv4 addresses"

doomjunky — Fri, 04 Aug 2023 13:28:10 +0000

IP is not a text format (like HTTP). It's a binary format where each field of the IPv4 header has an exactly defined offset and length. The source IP address is placed at offset 96 and has a length of 32 bit, the destination IP address sits right afterwards with the same length. Changing anything will result in new protocol definition, et voilà that's IPv6.

https://en.wikipedia.org/wiki/Internet_Protocol_version_4#He...

New comment by doomjunky in "Conversation skills essentials"

doomjunky — Tue, 03 Jan 2023 04:42:47 +0000

One is about ideas the other is about values.

New comment by doomjunky in "High Contrast Imaging of the Exoplanet HIP 65426 b from 2-16 μm"

doomjunky — Sat, 03 Sep 2022 22:24:58 +0000

109 autors

New comment by doomjunky in "Is “KAX17” performing de-anonymization Attacks against Tor Users?"

doomjunky — Tue, 07 Dec 2021 14:48:26 +0000

They don't need correlation. Operating large numbers of nodes gives them a high enough probability that all three hops may be under their control thus they can observe the entire route.

New comment by doomjunky in "Rise of the war machines: Charting the evolution of military technologies"

doomjunky — Sat, 30 Oct 2021 20:06:49 +0000

I was astonished about the rapid expansion of the list of cyber warfare forces in recent years and by the incredible mass of cyber warfare capabilities of the United States.

https://en.wikipedia.org/wiki/List_of_cyber_warfare_forces

New comment by doomjunky in "Ask HN: Best way to host a website for 500 years?"

doomjunky — Sat, 23 Oct 2021 14:39:53 +0000

Only 500 years or better through the dark age of the Galactic Empire?

The Seldon Plan:

1. Start a foundation.

2. Locate it at the outer rimes of the civilised galaxy.

3. Implement a technocratic cult governed by a dynasty of priests.

4. Engage in psychohistorical research for envisioning future risks.

New comment by doomjunky in "Those who witnessed Castle Bravo looked into Armageddon"

doomjunky — Mon, 13 Sep 2021 16:27:15 +0000

The Tzar-bomb was not an fission-based A-bomb, it was a fusion-based H-bomb. This type of nuke has typically much less fallout.

https://en.wikipedia.org/wiki/Tsar_Bomba https://en.wikipedia.org/wiki/Thermonuclear_weapon https://en.wikipedia.org/wiki/Nuclear_weapon_design

New comment by doomjunky in "Large-Scale Abuse of Contact Discovery in Mobile Messengers [pdf]"

doomjunky — Tue, 20 Apr 2021 14:36:42 +0000

This dark pattern is called the ratchet. https://news.ycombinator.com/item?id=16689663

New comment by doomjunky in "Whistleblowers: Software keeping inmates in Arizona prisons beyond release dates"

doomjunky — Mon, 22 Feb 2021 20:30:16 +0000

For the sake of completeness:

"Prisoners released early by software bug (2015)" https://www.bbc.com/news/technology-35167191

New comment by doomjunky in "Cambridge Bitcoin Electricity Consumption Index"

doomjunky — Wed, 10 Feb 2021 22:59:36 +0000

Cash also enables ransome.

New comment by doomjunky in "Voyager 2 is back online after eight months of radio silence"

doomjunky — Wed, 04 Nov 2020 17:10:37 +0000

Anybody wondering why earth is closer to yovager than pluto? CGP Grey has a good explanation https://youtu.be/SumDHcnCRuU

New comment by doomjunky in "YouTube-dl has received a DMCA takedown from RIAA"

doomjunky — Sat, 24 Oct 2020 21:33:32 +0000

I'm in no favour for the RIAA but just imagine. It would be a 300IQ move if that specific pull request was engineered by RIAA themself.

Please pull that test case... Fooled! Now there is a legal reason. Here is the DCMA takedown notice.

New comment by doomjunky in "Ban All Ransomware Payments, in Bitcoin or Otherwise"

doomjunky — Thu, 22 Oct 2020 13:57:03 +0000

This law can't even be enforced because the criminal can easily generate a new addresse for every new victim.

New comment by doomjunky in "Why American cities can’t keep up with infrastructure maintenance (2017)"

doomjunky — Tue, 06 Oct 2020 19:16:19 +0000

You are the only commenter quoting the horizontal development. So maybe my idea relates to you.

Are you familar with the concept of the Big O notation [1], which computer scientists use to (more or less) describe the "growth" of their algorithms? E.g. when you compare something that growth quadratically O(n²) to something that only growth linear O(n) you will see, that at some point the quadratically growth will grow faster as the linear growth. Forever! The linear growth will never win.

Comparing this to the horizontal sprawl of a city is easy. The area of a city is planar which is mathematically described as quadratic O(n²) but the average growth of the domestic product is just linear O(n). Assuming the maintainance cost of a planar sprawling city growth quadratic while the domestic product only growth linear then the costs will win over the income. Forever!

The conclusion is to limit the horizontal sprawl of a city to linear growth. This means every new house, street, rail road, pipe system, power line and so on must be build inside a diameter to the city's center with a distance which is logaritmic O(lg(n)) on average. The rest must growth vertically.

[1] https://en.wikipedia.org/wiki/Big_O_notation [2] https://www.statista.com/graphic/1/268750/global-gross-domes...

New comment by doomjunky in "CRDTs are the future"

doomjunky — Tue, 29 Sep 2020 12:50:38 +0000

It's feels like this document is heavy as ten years of work, thanks.

New comment by doomjunky in "Basics of Haskell – Code and exercises"

doomjunky — Mon, 27 Jul 2020 16:06:05 +0000

Haskell is actually very easy.

This is just my heuristic but Haskell has just 25 keywords. For comparison: C 32, Java 53, C++ 83 and C# 102. What makes Haskell confusing are the 115 GHC language extensions. Each is basically a new concept to learn. Every time i join a new and sufficiently large project, I stumble across an extension that I am not familiar with.

https://downloads.haskell.org/~ghc/latest/docs/html/users_gu...

New comment by doomjunky in "Basics of Haskell – Code and exercises"

doomjunky — Mon, 27 Jul 2020 15:35:33 +0000

The programming course at my university taught us the fundamental paradigmens. The languages were chosen only as examples.

Imperativ / OOP => Java

Functional => Haskell

Logic => Prolgo

New comment by doomjunky in "Hackers take over prominent Twitter accounts in simultaneous attack"

doomjunky — Thu, 16 Jul 2020 05:41:32 +0000

I remember last year around christmas/new year 2018/2019 a similar hack/leak/doxxing took place, targeting 994 (!!) mostly german politicians, celebrities and influencers. Massive amounts of private information (names, addresses, phone numbers, e-mails, DMs, contacts, online profiles, chat logs, private documents and even intimate details) where leaked. The data was published on a wide spread of public pastebins and etherpads. It took ages to take them down. The attacker had set up a labyrinth of links, files and passwords and even structured the data by topics and political parties.

Attack vector: Sim-Swapping. It was too easy. As soon as he got into one account, he got access to it's contacts and more phone numbers.

The attacker (0rbit) was a 20 year old student living at his parents home. He bragged about his hack to a online friend. This friend knew that 0rbit had been raided by the police years earlier. He betrayed him to the investigators and with the exact date of the raid the they were able looked up the old case and reveal his identity.

Previously on HN: https://news.ycombinator.com/item?id=18823286

New comment by doomjunky in "Ask HN: How to get 9-12 years old interested into Science domains through books?"

doomjunky — Sun, 07 Jun 2020 09:35:29 +0000

I got interessted in science not through books but through experiments. Every sunday morning after breakfast our parents made us do simple experiments. After my interest was roused, i became interested in books by myself.

E.g. surface tension experiments: https://www.youtube.com/watch?v=WsksFbFZeeU

New comment by doomjunky in "C Internals"

doomjunky — Wed, 03 Jun 2020 01:52:31 +0000

Where did the author commit to a certain standard? Maybe the author knows all of this but isn't -Wpedantic. Please don't jump to conclusions and assume worst.