@fj@mastodon.social
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fj

@fj@mastodon.social

Cryptographic & Security Engineering at Apple.
Previously: Lead iOS Developer https://mastodon.world/@signalapp

Tooting on all things #cryptography, #security, #climate, European #aerospace, #energy and #mobility

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fj, to random
@fj@mastodon.social avatar

Nice analysis by Bruno Blanchet that proves that HPKE with ML-KEM (or any other IND-CCA2 KEM) does provide IND-CCA2 security.

“Bruno models the base mode of HPKE, single shot API in CryptoVerif, and showed that if the KEM is IND-CCA2, then so is HPKE.
Since CryptoVerif is PQ-sound, that proves the security of the HPKE base mode, with the single shot API when the KEM is a post-quantum IND-CCA2 KEM.” via Karthikeyan Bhargavan on the CFRG mailing list

https://gitlab.inria.fr/bblanche/CryptoVerif/-/blob/crypto-library-pq-version/examples/hpke/hpke.base.indcca2.ocv?ref_type=heads

fj,
@fj@mastodon.social avatar

The post-quantum transition is causing us to abstract cryptographic protocols over Key Encapsulation Mechanisms as opposed to Diffie-Hellman-like non-interactive key exchanges.

These two papers on the binding models for KEMs are great reads on the gotchas of working with KEMs and the properties they may or may not have.

https://eprint.iacr.org/2023/1933
https://eprint.iacr.org/2024/523

fj, to random
@fj@mastodon.social avatar

Welcome to the age of AI-translated newsletters.

In the middle of the newsletter, a paragraph is missing and they sent it out with this error: “Unable to perform API call to GPT. Missing original asset text from the source database.”

fj, to random
@fj@mastodon.social avatar

Fascism leading now in 6 swing states, WSJ poll finds

https://www.wsj.com/video/trump-now-leads-biden-in-six-swing-states-poll-finds-key-takeaways/6F1258ED-5C24-46E1-ABD2-27FBBD0798CF.html?reflink=share_mobilewebshare

fj, to random
@fj@mastodon.social avatar

Rare interview of an Israeli reservist that was deployed to Gaza, saw actions motivated by revenge and young soldiers indiscriminately shooting on everything that moves.

“And in this unrestrained violence, all of which is motivated by revenge, the brigade commander was in first place. He is known as "the Tiktok brigade". He endangered us at every moment in this war, without any operational need. And his lieutenant, his hobby inside Gaza was to enter houses and burn them”
https://politicallycorret-co-il.translate.goog/mmm/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp#google_vignette

fj, to random
@fj@mastodon.social avatar

The US Federal Reserve is blocking international requirements on lenders to disclose their strategies for meeting green commitments. US banks will continue to be able to unaccountably fund projects destroying our planet.

https://www.bloomberg.com/news/articles/2024-04-03/fed-blocks-tough-global-climate-risk-rules-for-wall-street-banks

fj, to random
@fj@mastodon.social avatar

Welcome Bulgarians and Romanians to the Schengen family :)

Looking forward to travelling to Sofia next year for without passing any air border checks! https://social.network.europa.eu/

fj, to random
@fj@mastodon.social avatar

Meanwhile in the Silicon Valley Venture Capital Community ...

fj, to TikTok
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US bans , China bans , accelerating a move to SMIC-fabbed ARM chips (from Phytium & Huawei) in government data centers.

Also maybe Alibaba T-Head chips fabbed by TSMC? Data from Bernstein analysts suggests China represented last year almost 40% of all ARM-servers.

https://www.cnbc.com/2024/03/25/chinas-new-guidelines-will-block-intel-and-amd-chips-in-government-computers-ft.html

fj, to climate
@fj@mastodon.social avatar

“Last year, CO2 increased by 3.36 parts-per-million. That’s a 10% greater jump than the previous record, which was set just a few years ago.

In sheer weight, last year’s surge added a record 26 billion tonnes of CO2 to the atmosphere — more than three tonnes per human.”
https://www.nationalobserver.com/2024/03/27/analysis/co2-jumped-record-amount-last-year

fj, (edited ) to random
@fj@mastodon.social avatar

Anna Fontcuberta i Morral from the semiconductor lab is nominated as new EPFL president, succeeding to Martin Vetterli 👏

First woman to preside over a Federal Institute of Technology and beautifully timed that she is a dual-national with a European Union countries at a time where Switzerland will need to negotiate its inclusion in European research programs 🇨🇭❤️🇪🇺

https://www.24heures.ch/epfl-anna-fontcuberta-i-morral-nommee-a-la-presidence-189179594333

fj, to random
@fj@mastodon.social avatar

I had the pleasure to present at !
There was no coverage here on Mastodon, but @durumcrustulum did her legendary live-tweeting of the event over on Bluesky.
https://bsky.app/profile/did:plc:oxwmqopgbm3driwzues7odpz/post/3komugya6kc2z

404mediaco, to random
@404mediaco@mastodon.social avatar

We are very very excited to announce that 404 Media now has full text RSS feeds for our paying subscribers!!! Get your feed link here and learn more about why and how we did this:

https://www.404media.co/404-media-now-has-a-full-text-rss-feed/

fj,
@fj@mastodon.social avatar

@404mediaco Feedbin as the back-end and Web.
Reeder as an app

fj, to random
@fj@mastodon.social avatar

Congrats Anna Lysyanskaya and Jan Camenisch for the Levchin Prize 🏆 for their precursor work on anonymous credentials 🕵️‍♂️

And the team behind Certificate Transparency (including @agl, Al Cutter, Emilia Kasper and Ben Laurie) for deploying it at scale ✍️

image/jpeg

shalf, to random French
@shalf@mamot.fr avatar

Réécouter tout Les Antipodes des Cowboys n'était peut-être pas exactement le meilleur move, pour l'humeur...

fj,
@fj@mastodon.social avatar

@shalf j’ai appris le décès de Karl Tremblay cette semaine, ça m’a détruit.

Je me promenais ce matin dans les rues de Toronto avec L’Amérique Pleure dans les oreilles, quelle puissance.

fj, to random
@fj@mastodon.social avatar

Podcasting faux-pas that causes an instantaneous unsubscribe from me is leaving your notification sounds enabled while recording.

It’s so distracting and makes you check if you didn’t get an email or message.

fj, to random
@fj@mastodon.social avatar

Apple Silicon provides data-independent timing (DIT), in which the processor completes certain instructions in a constant amount of time. With DIT enabled, the processor uses the longer, worst-case amount of time to complete the instruction, regardless of the input data.

Learn how to enable DIT in your cryptographic code: https://developer.apple.com/documentation/xcode/writing-arm64-code-for-apple-platforms#Enable-DIT-for-constant-time-cryptographic-operations

fj, to random French
@fj@mastodon.social avatar

La guerre c'est la paix,
la liberté c'est l'esclavage,
l'ignorance c'est la force,
le facultatif c'est le requis

fj, to random
@fj@mastodon.social avatar

Thales, TheGreenBow, CryptoExperts, CryptoNext Security, ANSSI, and Inria, have formed the RESQUE (RÉSilience QUantiquE) consortium. With €6 million funding from the French government and EU, the project aims to create hybrid post-quantum VPNs and high-performance hardware security modules.
https://www.thalesgroup.com/en/worldwide/security/press_release/post-quantum-cryptography-six-french-cyber-players-join-forces

fj, (edited ) to random
@fj@mastodon.social avatar

Attitude control is catastrophic, but that plasma!

fj,
@fj@mastodon.social avatar

Telemetry Lost at 65KM

fj,
@fj@mastodon.social avatar

@ErikJonker Unclear at the moment. We should know in 2 min

fj,
@fj@mastodon.social avatar

@ErikJonker Given no data (lost data from Starlink + TDRS at the same time), something happened during re-entry (some speculation that it might be the heatshield).

So successful ascent but both on the booster and Starship, the controls on the way down were very chaotic on the way down.

fj, to random
@fj@mastodon.social avatar

~100 more Starlink v1 satellites will be burning up in the upper atmosphere in the next 6 months, bringing up the total number of de-orbited Starlink satellites to ~500 out of 6000 launched
https://api.starlink.com/public-files/Commitment%20to%20Space%20Sustainability.pdf

De-orbiting satellites by burning them up did work when the volume of satellites was small, but already 10% of aerosol particules in the stratosphere contain aluminum/other metals.
The problem is only going to get worse with the launch of megaconstellations https://www.pnas.org/doi/full/10.1073/pnas.2313374120

fj,
@fj@mastodon.social avatar

Proposal: A global tax, where you pay per kilogram of junk you burn up in the stratosphere.

fj, to random
@fj@mastodon.social avatar

AOG Technics Ltd, a London-based airplane parts distributor laundered thousands of used CFM56 turbine parts, forging documentation certifying them as new.
The parts landed in hundreds of aircrafts around the world.

The fraudster made millions of British pounds in profit at the expense of traveller's safety.

https://www.bloomberg.com/news/features/2023-10-11/fake-parts-found-on-boeing-airbus-jets-plague-airlines

fj, (edited )
@fj@mastodon.social avatar

You really can assemble a 737 from pieces that fall from the sky if you wait long enough.

"The fuselage panel of a United Airlines flight — a Boeing 737-800 — was discovered missing Friday afternoon after the plane landed at an airport in Medford, Oregon, after having departed San Francisco, officials said."

https://avherald.com/h?article=51634833&opt=0

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