Daniel Mangum
@danielmangum.com
📤 822
đź“Ą 270
đź“ť 1435
big fan of computers and human beings.
pinned post!
**This Website is Hosted on Bluesky** This weekend I found myself digging through the AT Protocol specifications and the Bluesky Personal Data Server (PDS) implementation. In doing so, I discovered that I could setup a website that is fully hosted on Bluesky.
danielmangum.com/posts/this-w...
over 1 year ago
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fridays are for demos!
about 6 hours ago
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let’s build something great this week!
4 days ago
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fridays are for demos!
8 days ago
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every time I travel through the Minneapolis airport, I stop and pay my respects to the Panda Express, where I once found myself spending the night sleeping on one of its very uncomfortable benches.
8 days ago
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reposted by
Daniel Mangum
Mike Szczys
9 days ago
If you're at the RISC-V summit in Minneapolis,
@danielmangum.com
's talk tomorrow is a can't miss!
add a skeleton here at some point
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Come to my talk at RISC-V Summit tomorrow to see me connect things to the internet that probably shouldn’t be connected to the internet.
9 days ago
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my goodness minneapolis is an incredible city.
10 days ago
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the number of wires will continue increasing until morale improves.
12 days ago
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let’s build something great this week!
12 days ago
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Looking forward to
@linuxfoundation.org
#OSSummit
this week! I’ll be giving a fun talk at the
@riscvinternational.bsky.social
Mini Summit on Thursday on connecting the Pinecil soldering iron to the internet using Zephyr and
@canonicalltd.bsky.social
/
@golioth.io
. Reach out to you’d like to chat!
12 days ago
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somehow I always find myself soldering with an hour or less before I need to leave for the airport.
12 days ago
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let’s build something great this week!
25 days ago
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transatlantic flights are the best time for some hardware hacking.
25 days ago
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it’s race day!
28 days ago
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fridays are for demos!
29 days ago
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let’s build something great this week!
about 1 month ago
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hackernews debating today’s marathon world record feels like a weird collision of worlds for me.
about 1 month ago
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the sub-2 marathon barrier is no more!
about 1 month ago
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it’s race day!
about 1 month ago
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fridays are for demos!
about 1 month ago
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they really told the TRINAMIC marketing team at ADI to go all out.
about 1 month ago
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let’s build something great this week!
about 1 month ago
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happy boston marathon eve to all who celebrate.
about 1 month ago
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looks like we’re doing orange site this weekend.
about 1 month ago
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reposted by
Daniel Mangum
**Floating Point Fun on Cortex-M Processors** New post in which I explore floating point ABIs on Arm Cortex-M processors, using the
@nordicsemi.com
nRF52840 as an example, and demonstrate how one might go about dynamically enabling the FPU during program execution.
danielmangum.com/posts/floati...
about 1 month ago
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fridays are for demos!
about 1 month ago
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**Floating Point Fun on Cortex-M Processors** New post in which I explore floating point ABIs on Arm Cortex-M processors, using the
@nordicsemi.com
nRF52840 as an example, and demonstrate how one might go about dynamically enabling the FPU during program execution.
danielmangum.com/posts/floati...
about 1 month ago
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new blog post tomorrow.
about 1 month ago
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ICYMI: Last week I wrote about the PSA Crypto API, how it enables leveraging security features across heterogeneous hardware, and why it may ease the transition to post-quantum cryptography on MCU-class devices.
danielmangum.com/posts/psa-cr...
about 2 months ago
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let’s build something great this week!
about 2 months ago
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I say this as someone who loves Christopher Nolan movies so much that four of my top five favorite movies are ones he directed… Project Hail Mary is better than Interstellar. I will not be taking further questions at this time.
about 2 months ago
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1: "what are you in for?" 2: *takes a long drag on cigarette* ... "I ran strings(1) on a binary library with a license that expressly forbid reverse engineering"
about 2 months ago
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reposted by
Daniel Mangum
**PSA Crypto: The P is for Portability** New post in which I provide an overview of the PSA Crypto API, describe how implementations differ across hardware ( e.g.
@nordicsemi.com
vs. Espressif), and look ahead to upcoming Post-Quantum Crypto on constrained devices.
danielmangum.com/posts/psa-cr...
about 2 months ago
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**PSA Crypto: The P is for Portability** New post in which I provide an overview of the PSA Crypto API, describe how implementations differ across hardware ( e.g.
@nordicsemi.com
vs. Espressif), and look ahead to upcoming Post-Quantum Crypto on constrained devices.
danielmangum.com/posts/psa-cr...
about 2 months ago
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fridays are for demos!
about 2 months ago
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new blog post tomorrow.
about 2 months ago
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"Terminology for Constrained-Node Networks" (IETF Draft RFC 7228bis) has some useful classifications of devices on dimensions of RAM / flash, upgradability, isolation, secret shielding, available power, networking capabilities, bandwidth, and more.
www.ietf.org/archive/id/d...
about 2 months ago
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what a joy to think deeply and understand.
about 2 months ago
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been a while since I used cloud run and I actually really like how they haven’t abstracted that functions are just containers they build for you. makes it pretty easy to move from code to container in the future.
about 2 months ago
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let’s build something great this week!
about 2 months ago
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fridays are for demos!
about 2 months ago
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let’s build something great this week!
2 months ago
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let’s build something great this week!
2 months ago
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fridays are for demos!
2 months ago
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let’s build something great this week!
2 months ago
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new hardware day.
3 months ago
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top two takeaways from my two week europe excursion: 1. The secure element / MCU TEE market is too fragmented. 2. London is a top 5 running city in the world, and Nuremberg is top 30.
3 months ago
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first race outside the US: victoria park half marathon.
3 months ago
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reposted by
Daniel Mangum
Nick Gerace
3 months ago
"Golioth is now a part of Canonical"
blog.golioth.io/golioth-is-n...
loading . . .
Golioth is now a part of Canonical
We are thrilled to share that Golioth is now a part of Canonical, the company behind Ubuntu and a global leader in open source.
https://blog.golioth.io/golioth-is-now-a-part-of-canonical/
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reposted by
Daniel Mangum
**Fooling Go's X.509 Certificate Verification** New post on why verifying X.509 certificates in Go sometimes fails with seemingly identical CA certificates, and why different behavior in tools like OpenSSL further complicates the matter.
danielmangum.com/posts/foolin...
loading . . .
Fooling Go's X.509 Certificate Verification
Below are two X.509 certificates. The first is the Certificate Authority (CA) root certificate, and the second is a leaf certifcate signed by the private key of the CA. ca.crt.pem -----BEGIN CERTIFICA...
https://danielmangum.com/posts/fooling-go-x509-certificate-verification/
3 months ago
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