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Jeffrey Quesnelle

Personal blog · jeffq.com/blogprogrammingsecurityai

Jeffrey Quesnelle writes jeffq, published, a personal blog at jeffq.com about programming, security and ai. Since 2016, 13 different Hacker News readers have linked it 15 times, most often “On the linkability of Zcash transactions”. The last post was in 2023, but the archive is still widely read.

Visit the blog
15mentions?
13HN people?
2016–2024first – last linked?
Links on Hacker News per year · peak 7 in 2018

Most-linked posts?

  1. On the linkability of Zcash transactions
    6 people · 7 mentions · first linked 2017-12-05
  2. The Ethernet PAUSE frame
    3 people · 3 mentions · first linked 2016-08-22

What Hacker News says?

  1. - Fungibility is broken when you have optional privacy--also stuff like this happens http://jeffq.com/blog/on-the-linkability-of-zcash-transactio... -No one but the participants should trust a trusted setup, and even then, it's only if they can vouch for their OPSEC. - B goes to my point that Green is inept as that should have been where they started. - And they were cordial after they talked through the issues and…

    Comment linking /blog/on-the-linkability-of-zcash-transactions/

    on “Email exchange between MIT Media Lab and the IOTA Foundation [pdf]”
  2. Submitted The Ethernet PAUSE frame as a story · 266 points

    HN discussion
  3. > Its main competitor, Zcash -- which isn’t known to have a significant criminal following -- can offer even better privacy protection . On zcash, there was this discussion: http://jeffq.com/blog/on-the-linkability-of-zcash-transactio... which suggested that nearly 31.5% of the hidden transactions in Zcash has some transparent parts to it.

    Comment linking /blog/on-the-linkability-of-zcash-transactions/

    on “The Criminal Underworld Is Dropping Bitcoin for Monero”
  4. Submitted When code is suspiciously fast: adventures in dead code elimination as a story · 116 points

    HN discussion
  5. Zcash has two types of accounts - t-accounts which are transparent accounts and z-accounts which are hidden. Most exchanges don't allow z-accounts so, all the money has to be sent to a t-account. This creates a linkability issues which has been discussed in this blog post: http://jeffq.com/blog/on-the-linkability-of-zcash-transactio...

    Comment linking /blog/on-the-linkability-of-zcash-transactions/

    on “Monero Gold integer undeflow scam”
  6. Submitted On the linkability of Zcash transactions as a story · 16 points

    HN discussion
  7. And only use shielded addresses: http://jeffq.com/blog/on-the-linkability-of-zcash-transactio... At least with Monero you don't have to worry about that because everything is private by default.

    Comment linking /blog/on-the-linkability-of-zcash-transactions/

    on “Bitcoin drug deals could haunt people for years”
  8. Submitted On the linkability of Zcash transactions as a story · 3 points

    HN discussion
  9. Thanks for the info. This malfunctioning behaviour doesn't seem that uncommon though. Here [1] is another story from 2016 with the same root cause. I'd like to know how widespread that non-standard behaviour really is. I could imagine that many small businesses, e.g. cafes, restaurants etc, use cheap consumer switches to manage their guest wifi. Those would seem to be vulnerable. Another thing: Maybe this is nonsens…

    Comment linking /blog/the-ethernet-pause-frame/

    on “USB-C Hubs and Ethernet (2020)”
  10. Submitted On the linkability of Zcash transactions as a story · 2 points

    HN discussion
  11. That post has provided no proof this is indeed a MAC address conflict issue, and as other comments suggest even an actual MAC address duplicate should only cause connectivity issues for said MAC address and no other devices. MAC addresses belong to the NIC and not the machine, and while the OS can override them, it won't do so without express user intervention. I'm especially skeptical of the Ethernet MAC being a du…

    Comment linking /blog/the-ethernet-pause-frame/

    on “After five years I discovered why my network goes down (2020)”
  12. Submitted Language Models vs. the Sat Reading Test as a story · 1 points

    HN discussion
  13. http://rss.slashdot.org/Slashdot/slashdot https://www.raspberrypi.org/feed/ https://www.aclu.org/taxonomy/channel-term/1/feed http://gpuopen.com/feed/ http://feeds.feedburner.com/armdevices?format=xml http://mobilesemi.blogspot.com/feeds/posts/default http://feeds.feedburner.com/cnx-software/blog?format=xml http://boingboing.net/feed http://atomicsupermen.wordpress.com/feed/ http://feeds.feedburner.com/Gizchinacom?f…

    Comment linking /blog/feed/

    on “Ask HN: Share your best OPML/RSS Feeds”
  14. Submitted Foundations of the golden ratio base [pdf] as a story · 1 points

    HN discussion
  15. Submitted Scheduling a conference to minimize attendee preference conflicts [pdf] as a story · 1 points

    HN discussion

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