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J

Jack Kingsman

Personal blog · jacksbrain.com · on HN as jkingsmansecurityprogramming

Jack Kingsman writes Jack's Brain, a personal blog at jacksbrain.com about security and programming. Since 2017, 5 different Hacker News readers have linked it 9 times, most often “A FOXO4-DRI Breakdown – Senescent Cell Apoptosis”. It is still writing: the last post was on 2026-09-27, and you can follow it by feed.

Visit the blog
9mentions?
5HN people?
2017–2026first – last linked?
Links on Hacker News per year · peak 7 in 2017

Too few sampled comments (1) to say how often HN recommends it.?

Why HN links it

The linked posts cover Meshcore's custom key handling and Ed25519 cryptography. The one comment cites the blog while discussing Meshcore's private and public key quirks in Java.

Summarised by Claude from a sample of 1 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.

The blog of Jack Kingsman, a Site Reliability Engineer and geek living in Seattle.

The author on HN?

jkingsman · 1,976 karma · member since 2013

http://jacksbrain.com https://github.com/jkingsman https://keybase.io/jackkingsman Biohacker, developer, nerd. [ my public key: https://keybase.io/jackkingsman; my proof: https://keybase.io/jackkingsman/sigs/KkmLhjehzVC4pTPirRSxU30diNt68EfKvEkQOV9UOvA ]

From their public HN profile, which links to this site.

Most-linked posts?

  1. A FOXO4-DRI Breakdown – Senescent Cell Apoptosis
    3 people · 3 mentions · first linked 2017-04-07

What Hacker News says?

  1. mschuster91 · 2026-05-05
    > I'm 100% certain that you also can do that with raw java.security. I tried that, the problem is Meshcore specific - they do their own weird shit with private and public keys [1]. Haven't figured out how to do the private key import either, because in the C source code (or in python re-implementations) Meshcore just calls directly into the raw ed25519 library to do their custom math... it's a mess. [1] https://jack…

    Comment linking /2026/01/a-hitchhiker-s-guide-to-meshcore-cryptography/

    on “.de TLD offline due to DNSSEC?”
  2. jkingsman · 2025-11-24

    Submitted 'My Body Is My Passport; Verify Me': Fido Auth via Subdermal JavaCard Platform as a story · 2 points

    HN discussion
  3. jkingsman · 2017-11-10

    Submitted Tech Debt in Academia: 3 Keys to Getting Back on Track as a story · 2 points

    HN discussion
  4. mhb · 2017-05-15

    Submitted A FOXO4-DRI Breakdown – Senescent Cell Apoptosis as a story · 2 points

    HN discussion
  5. neworbit · 2017-05-09

    Submitted Promising cell senescence treatment as a story · 2 points

    HN discussion
  6. neverminder · 2017-04-07

    Submitted A FOXO4-DRI Breakdown – Senescent Cell Apoptosis as a story · 1 points

    HN discussion
  7. jkingsman · 2017-03-25

    Submitted The Problem of Tech Debt in Research as a story · 1 points

    HN discussion
  8. jkingsman · 2017-03-17

    Submitted Tech Debt in Research and Academia: 3 Keys for Getting on the Right Track as a story · 1 points

    HN discussion
  9. jkingsman · 2017-03-08

    Submitted The most relatable (and funny) leaks from Vault7 developers as a story · 1 points

    HN discussion

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