Hacker Blogs
Work in progress: 15,409 of 181,233 sites checked so far, more every week · updated 2 Nov 2026Missing a blog? Tell us

Top all-time · #1180

P

Philip Zimmermann

Personal blog · philzimmermann.comsecurityhistory

Philip Zimmermann writes Phil Zimmermann's Home Page, a personal blog at philzimmermann.com about security and history. Since 2008, 61 different Hacker News readers have linked it 83 times, most often “Why I Wrote PGP (1999)”. No feed was found, so read it on the site itself.

No feed foundVisit the blog
83mentions?
61HN people?
2008–2026first – last linked?
Links on Hacker News per year · peak 11 in 2023

Home page for Philip Zimmermann, creator of PGP (Pretty Good Privacy), the most widely used email encryption software in the world

Most-linked posts?

  1. Why I Wrote PGP (1999)
    11 people · 21 mentions · first linked 2014-07-22
  2. Author's Preface to the Book: “PGP Source Code and Internals”
    8 people · 8 mentions · first linked 2017-10-03
  3. Why I Wrote PGP (1999)
    7 people · 8 mentions · first linked 2012-05-05
  4. Human-oriented base-32 encoding
    6 people · 9 mentions · first linked 2017-02-26
  5. Why I Wrote PGP (1999)
    5 people · 5 mentions · first linked 2021-08-08
  6. Beware of snake oil
    4 people · 4 mentions · first linked 2011-04-19
  7. PGP Marks 30th Anniversary
    3 people · 3 mentions · first linked 2021-06-07
  8. /docs/human-oriented-base-32-encoding.txt
    2 people · 2 mentions · first linked 2013-02-20
  9. How to Contact Phil
    2 people · 2 mentions · first linked 2022-01-28
  10. PGP
    2 people · 2 mentions · first linked 2021-06-08

What Hacker News says?

  1. In one sense, the anti-crypto forces are not yet being as crazy as they have been at certain times in the past. People often forget that the federal government wanted to put Phil Zimmerman in prison over PGP in the nineties. [1] In another sense, this is much crazier. There wasn't much at stake commercially in the nineties, but today, legislatively screwing up crypto could compromise trillions of dollars worth of co…

    Comment linking /EN/news/PRZ_case_dropped.html

    on “Oppose the Earn IT Act”
  2. Submitted Why I Wrote PGP (1999) as a story · 422 points

    HN discussion
  3. True. But pretty good privacy might be worth considering in this context - it was at one point published as a book after all... https://philzimmermann.com/EN/essays/BookPreface.html

    Comment linking /EN/essays/BookPreface.html

    on “All public GitHub code was used in training Copilot”
  4. Submitted Why I Wrote PGP (1999) as a story · 257 points

    HN discussion
  5. https://www.philzimmermann.com/EN/essays/WhyIWrotePGP.html "Why I Wrote PGP", by Philip Zimmermann We really need to emphasize the envelope metaphor a lot more. It's much easier for non-technical propel to understand than any discussion of key/signing/etc.

    Comment linking /EN/essays/WhyIWrotePGP.html

    on “Times Pulls Article Blaming Encryption in Paris Terror Attack”
  6. Submitted Why I Wrote PGP (1991, revised 1999) as a story · 189 points

    HN discussion
  7. And zbase32 ( https://philzimmermann.com/docs/human-oriented-base-32-encod... ), which is my own preference for still being case-insensitive and thereby able to be used in subdomain names or email addresses.

    Comment linking /docs/human-oriented-base-32-encoding.txt

    on “Linus on Git and SHA-1”
  8. Submitted PGP Marks 30th Anniversary as a story · 185 points

    HN discussion
  9. It's not a legend, it's easy enough to confirm. https://philzimmermann.com/EN/essays/BookPreface.html

    Comment linking /EN/essays/BookPreface.html

    on “Why I Wrote PGP (1999)”
  10. Submitted Why I Wrote PGP (1999) as a story · 149 points

    HN discussion
  11. The same sort of play was made after the Oklahoma City bombing: https://www.philzimmermann.com/EN/essays/WhyIWrotePGP.html

    Comment linking /EN/essays/WhyIWrotePGP.html

    on “Why Apple Is Right to Challenge an Order to Help the F.B.I”
  12. Submitted Why I Wrote PGP (1999) as a story · 76 points

    HN discussion
  13. The line at the end that really hit me was this: > Almost all the attackers were known to the authorities, and if they had been watched, their use of encryption programs would have itself invited closer scrutiny. This is precisely the scenario that Phil Zimmermann (creator of PGP) and others have been warning about (and working against) for decades. As Zimmermann said in a 1999 essay linked here not long ago, "What…

    Comment linking /EN/essays/WhyIWrotePGP.html

    on “A Back Door to Encryption Won't Stop Terrorists”
  14. Submitted Phil Zimmermann: Beware of Snake Oil Crypto (1997) as a story · 70 points

    HN discussion
  15. This is exactly why tech/internet companies should have been spending the last year educating people about why encryption is important and just how much of their lives relies on crypto. The FBI has been running their own propaganda campaign, but when James Comey talks about the supposed "need" for backdoors, the common response by the people that understand crypto is to talk about how stupid Comey's suggestion was,…

    Comment linking /EN/essays/WhyIWrotePGP.html

    on “Mark Zuckerberg Backs Apple in Its Refusal to Unlock iPhone”
  16. Submitted Letters to Philip Zimmermann on how human rights groups used PGP to protect against death squads as a story · 12 points

    HN discussion
  17. 1) Sometimes it's not about you . Currently, the NSA (and others, presumably) consider the presence of encryption as part of their is_suspicious() heuristic. Other people do have need for encryption, and by saying "I (currently) have nothing to hide", you are saying that you are fine with a high correlation between "uses encryption" and "is doing something suspicious". More than any other reason, we need to dilute t…

    Comment linking /EN/essays/WhyIWrotePGP.html

    on “Marking HTTP as Non-Secure”
  18. Submitted PGP Marks 30th Anniversary as a story · 11 points

    HN discussion
  19. Phil Zimmermann used postcards as the analogy in his Why I Wrote PGP essay in 1991: https://www.philzimmermann.com/EN/essays/WhyIWrotePGP.html

    Comment linking /EN/essays/WhyIWrotePGP.html

    on “Senate encryption bill draft mandates 'technical assistance'”
  20. Submitted Philip Zimmermann: Why I Wrote PGP (1999) as a story · 5 points

    HN discussion
  21. "What if everyone believed that law-abiding citizens should use postcards for their mail? If a nonconformist tried to assert his privacy by using an envelope for his mail, it would draw suspicion. Perhaps the authorities would open his mail to see what he's hiding. Fortunately, we don't live in that kind of world, because everyone protects most of their mail with envelopes. So no one draws suspicion by asserting the…

    Comment linking /EN/essays/WhyIWrotePGP.html

    on “FBI director: Cover up your webcam”
  22. Submitted Why I Wrote PGP as a story · 4 points

    HN discussion
  23. Woah, I didn't know that Joe Biden was the sponsor of the exact bill that Phil Zimmerman referenced in his essay, “Why I Wrote PGP”. From the OP: “On the other hand, as a senator in the 1990s, Vice President Joe Biden introduced a bill at the FBI's behest that echoes the bureau's proposal today. Biden's bill said companies should "ensure that communications systems permit the government to obtain the plain text cont…

    Comment linking /EN/essays/WhyIWrotePGP.html

    on “FBI pushing for surveillance backdoors on websites”
  24. Submitted Manual to Phil Zimmermans PGPfone Circa 1996 [pdf] as a story · 3 points

    HN discussion
  25. Though it would appear the source of the original PGP software is no longer publicly accessible [1], so how would one know if it was vulnerable? I think the EFF probably meant people using various implementations right? [1] https://philzimmermann.com/EN/findpgp/

    Comment linking /EN/findpgp/

    on “A new set of vulnerabilities affecting users of PGP and S/MIME”
  26. Submitted How to Contact Phil as a story · 3 points

    HN discussion
  27. I'm a fan of z-base-32 for this. https://philzimmermann.com/docs/human-oriented-base-32-encod... Command line tool at https://github.com/tv42/zbase32 $ echo hello, world | zbase32-encode pb1sa5dxfoo8q551pt1yw $ entropy 16 | zbase32-encode y64s31aq6cgjoko9fwbuasf4ce

    Comment linking /docs/human-oriented-base-32-encoding.txt

    on “Understanding and avoiding visually ambiguous characters in IDs”
  28. Submitted PGP Marks 30th Anniversary as a story · 3 points

    HN discussion
  29. Well, ask the creator of PGP: > Whatever it is, you don't want your private electronic mail (email) or confidential documents read by anyone else. https://www.philzimmermann.com/EN/essays/WhyIWrotePGP.html It was designed for private electronic mail . Or the PGP FAQ linked by the MIT keyserver: > PGP is a program that gives your electronic mail something that it otherwise doesn't have: Privacy. https://pgp.mit.edu/i…

    Comment linking /EN/essays/WhyIWrotePGP.html

    on “Why can't my mom email me?”
  30. Submitted Why I Wrote PGP (1991) as a story · 3 points

    HN discussion

Search all of HN for philzimmermann.com

Linked by the same people?