Matthew Green
banner
matthewdgreen.bsky.social
Matthew Green
@matthewdgreen.bsky.social
I teach cryptography at Johns Hopkins. https://blog.cryptographyengineering.com
But are they after tonight?
November 10, 2025 at 4:45 AM
Certainly aren’t going to be any deals in the future now that the GOP knows the Dems will just unilaterally cave.
November 10, 2025 at 4:44 AM
On the other hand, the real world is noisy and messy and people tend to move around when you’re executing multi-hour side channel attacks.
November 3, 2025 at 12:52 PM
This is from a recent eprint on side channel analysis. Excellent work and no shade intended. eprint.iacr.org/2025/559
Is Your Bluetooth Chip Leaking Secrets via RF Signals?
In this paper, we present a side-channel attack on the hardware AES accelerator of a Bluetooth chip used in millions of devices worldwide, ranging from wearables and smart home products to industrial ...
eprint.iacr.org
November 2, 2025 at 9:50 PM
I’m not in NYC and yet somehow I have very strong generalizable feelings about most of the other candidates.
November 2, 2025 at 9:48 PM
I’ve been throwing it at hard research problems and also giving them to my PhD students to see who wins. Don’t tell them.
November 1, 2025 at 6:14 PM
Oh I’d be willing to get with today’s neural nets you could do it with camera video.
November 1, 2025 at 5:48 PM
That’s Wisconsin cheddar when everyone knows New York would use Cabot.
November 1, 2025 at 5:33 PM
Yeah it’s getting pretty good unfortunately. But please please check the code carefully because it will introduce bugs that are so bizarre you’d view them as backdoors if a human did them.
November 1, 2025 at 5:32 PM
Deep sea divers also love it.
November 1, 2025 at 5:30 PM
Reposted by Matthew Green
The trajectory for digital ID and infrastructure was mainly stagnant for years because of the lack of public demand for it (for obvious reasons). But once governments and businesses saw ways to use it to allegedly prevent fraud and age gate the web, that was a large incentive to roll this out faster
October 31, 2025 at 11:30 AM
Reposted by Matthew Green
The PRF extension is designed to be used for end-to-end encryption. It's a good fit for them!

bitwarden.com/blog/prf-web...
PRF WebAuthn and its role in passkeys | Bitwarden
Accessing and unlocking the Bitwarden vault with a passkey leverages an extension for WebAuthn called the pseudo-random function or PRF. Learn more about this leading-edge standard and how it may impa...
bitwarden.com
October 30, 2025 at 1:21 PM