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    Security, Cryptography, Whatever

    securitycryptographywhatever.com · Publication · on HN since 2023

    Security, Cryptography, Whatever is a podcast hosted by Thomas Ptacek, Deirdre Connolly, and David Adrian about cryptography and security.

    Visit blogHN submissions
    SecurityOpen Source & Linux
    What HN says

    HN commenters recommend it, with one listening to most episodes on release and others praising its episodes on JWT and cryptography implementation.

    Stats for nerds
    23HN people shared it
    9linked in comments
    25story points
    Apr 2026last shared
    2023people per year2026

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    What HN people wrote when they linked it

    • DyslexicAtheistMay 2025

      > Modern implementations must support a range of TLS protocol versions (from legacy TLS 1.0 to current TLS 1.3)

      So this statement is strange considering "modern" security standards either nudge you (or demand) to deprecate anything that isn't v1.3 or v1.2.

      If the implementation is "modern" why would I allow 1.0 ?

      This seems like a HA-Proxy problem. They ought to maintain support for geriatric TLS versions on a dedicated release branch connected to a support-model that nudges their client into updating by increasing their fees for maintaining that system. Not doing so means the vendor is part of the problem why we have slower adoption rates for 1.3 than we could otherwise have.

      It would have been cool to see AWS's s2n-tls (or s2n-quic https://github.com/aws/s2n-quic) included in their benchmark.

      One of my all time favorite episode from the SCW podcast goes into the design decisions of s2n:

      The feeling's mutual: mTLS with Colm MacCárthaigh https://securitycryptographywhatever.com/2021/12/29/the-feeling-s-mutual-mtls-with-colm-maccarthaigh/

      From AWS: https://aws.amazon.com/security/opensource/cryptography/

      > "In 2015, AWS introduced s2n-tls, a fast open source implementation of the TLS protocol. The name "s2n", or "signal to noise," refers to the way encryption masks meaningful signals behind a facade of seemingly random noise. Since then, AWS has launched several other open source cryptographic libraries, including Amazon Corretto Crypto Provider (ACCP) and AWS…

    • loegApr 2026

      > it is very possible to simply take every file in a codebase, and prompt it asking for it to find vulnerabilities.

      My understanding (based on the Security, Cryptography, Whatever podcast interview[0] -- which, by the way, go listen to it) is that this is actually what Anthropic did with the large model for these findings.

      [0]: https://securitycryptographywhatever.com/2026/03/25/ai-bug-finding/

      > I wrote a single prompt, which was the same for all of the content management systems, which is, I would like you to audit the security of this codebase. This is a CMS. You have complete access to this Docker container. It is running. Please find a bug. And then I might give a hint. “Please look at this file.” And I’ll give different files each time I invoke it in order to inject some randomness, right? Because the model is gonna do roughly the same time each time you run it. And so if I want to have it be really thorough, instead of just running 100 times on the same project, I’ll run it 100 times, but each time say, “Oh, look at this login file, look at this other thing.” And just enumerate every file in the project basically.

    • walterbellJul 2023

      From the MLS protocol discussion posted elsewhere in this thread, https://securitycryptographywhatever.com/2023/04/22/mls/

      .. you have a cryptographic guarantee that everybody sees the same list of admins, sees the same list of, of non-admins and general members and whatnot.

      .. The server can absolutely not inject participants because the server is not a member. So, there is this add operation, that can only be performed by an existing member. However, there is also a way for a server, or let’s say generally an outside party to suggest, uh, other members.

      But that requires the outside party, you know, to have a well-defined credential and to sign that request. And then that can be honored and everybody will see that that was a suggestion from the server. And that’s a controlled way, how you can add people to a group, but you can never do that, you know, steathily.

    • tptacekSep 2025

      Hey, I should say this, and wish I had earlier:

      I don't really so much care whether Nostr is good or bad. I'm a connoisseur of cryptographic vulnerabilities, and the ones in that paper are fun. We host a podcast (me, Deirdre Connolly, and David Adrian) that is mostly about good crypto vulns. If there's someone affiliated with Nostr that would want to chat for an hour or so about how applicable the vulns in this paper are or aren't, and how they're addressed in NIP44 --- we'd love to talk. My email address is in my profile. Whoever showed up, they'd be in good company!

      https://securitycryptographywhatever.com/

    • frugberDec 2023

      > on the podcast

      Click username => Check website, last update 2016...

      Copy the @_@_ junk to a search engine => Click on Mastodon instance, unable to find any link to "the podcast" in the "profile" => scroll through Mastodon posts, wading through food swooning and memes to find December 2nd ~"SEND US QUESTIONS FOR SCW PODCAST" => put "SCW Podcast" in search engine => Scroll past "SCW Fitness" and "Soft Cock Week"...

      Put "SCW Security" into search engine => Click https://securitycryptographywhatever.com/

      https://securitycryptographywhatever.com/2023/11/13/lattice-attacks/

    • gnymanDec 2023

      This was a great episode, another great one I remember is https://securitycryptographywhatever.com/2021/08/12/what-do-we-do-about-jwt-with-jonathan-rudenberg/

      I'd recommend listening (or reading the transcripts) to anyone who's needs or wants to understand more about JWT and other tokens

      (And if you're not, check out the other episodes still. That podcast is great, some of the episodes get really deep into the cryptography weeds but if I get trough them I still feel like I learned something :-) thanks for making it)

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