#opaque — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #opaque, aggregated by home.social.
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#opaque : not able to be seen through
- French: opaque
- German: undurchsichtig, opak
- Italian: opaco
- Portuguese: opaco
- Spanish: opaco
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Try our new word guessing game @ https://24hippos.com
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Meta 1 мая показала как они хранят ключи от ваших бэкапов WhatsApp. Разбираю архитектуру и сравниваю
Дисклеймер: в статье несколько раз упомянут мой собственный мессенджер ONEMIX. Если такое триггерит — закройте сейчас, не обижусь. Если интересно как решают одну и ту же инженерную задачу в Meta и в команде из одного человека, поехали. Первого мая на Engineering at Meta вышел пост «How Meta Is Strengthening End-to-End Encrypted Backups». Одиннадцатого мая продолжение про Labyrinth 1.1, реализацию для Android. Я прочитал оба, потом полез в whitepaper, потом сравнил с тем что делаю у себя, и решил написать разбор. Не пересказ маркетингового материала, а нормальный технический разбор. Что они сделали, почему именно так, где у меня болело по дороге, какие компромиссы они выбрали, какие выбрал я. Сразу важная оговорка про что эта статья. Она не про шифрование сообщений в транзите. Signal Protocol, Double Ratchet, X3DH — всё это давно стандарт, все нормальные мессенджеры это используют. WhatsApp лицензировал Signal Protocol ещё в 2016-м. Транзит решённая задача. Эта статья про следующее звено цепи, которое для большинства пользователей до сих пор сломано. Про бэкапы.
https://habr.com/ru/articles/1038524/
#endtoend_шифрование #OPAQUE #HSM #WhatsApp #Meta #криптография #бэкапы #мессенджеры #RFC_9807 #информационная_безопасность
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#opaque : impervious to the rays of light
- French: opaque
- German: undurchsichtig, opak
- Italian: opaco
- Portuguese: opaco
- Spanish: opaco
------------
Try our new word guessing game @ https://24hippos.com
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Updated the docs for my pure-Java implementation of OPAQUE (client and server) with also a typescript client. https://codeheadsystems.github.io/hofmann-elimination/
I included links to other known projects, different languages and levels of maturity. I'm finishing up the main code and have examples of integrations. As that gets solidified, I need to find some group to do a security analysis of it. Apache 2 licensed.
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What is it about this #opaque #DOT agency? Incompetent, unaccountable or both?
https://nyc.streetsblog.org/2026/03/04/the-mamdani-streets-master-plan-big-bold-no-mileage-benchmarks #mamdani #cycling #transportation #sustainability #Climate -
I just published an RFC compliant Java implementation of OPAQUE/OPRF. OPAQUE provides authentication without the need to share the passwords... rendering server's authentication database useless for offline attacks. This implementation, with Typescript/Client support and Open API specs, can be found here: https://github.com/codeheadsystems/hofmann-elimination
I'd love to get a few eyes on it, looking for comments or security concerns. It's Apache 2 licensed and I'd love to get this (or something like it) everywhere to reduce the value of powning servers. I plan more ports to other languages, go, rust, c#.
#Java #Authentication #cryptography #infosec #opaque #oprf #rfc
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#opaque : impervious to the rays of light
- French: opaque
- German: undurchsichtig, opak
- Italian: opaco
- Portuguese: opaco
- Spanish: opaco
------------
Try our new word guessing game @ https://24hippos.com
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Today was #rage and #pullrequests.
1. Yes, #hardcoded #opaque identifiers are a little tiny bit faster in this task that runs for a couple of minutes on an irregular, on-demand basis. But maybe you should look up those monstrosities starting from their #humanfriendly equivalents which are much more descriptive.
2. Fine, you wrote some #shellscript with #LLM. It's not very #DRY and it interfaces poorly with the #pipeline syntax. This will require #commits to a branch, not just a #review.
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Credit card companies in Canada (and elsewhere) have been imposing draconian restrictions on the use of their payment networks for anything even slightly racy -- digital Puritanism, enforced by a handful of companies that have a combined monopoly stranglehold on payment systems.
Risque video content? Racy text? Erotic drawings? All forbidden to one degree or another, by un-elected moral crusaders that you simply can't choose to not use. If you're a content creator depending on payments / subscriptions, you can be demonitized instantly, with no explanation and no recourse, at any moment. Goodbye, income!
This petition isn't perfect - it's written solely from the point of view of someone concerned with the effects on the videogame market, not any other type of content creator - but it's a start. If you're in Canada and want payment processors to not engage in such discriminatory practices, take a look at this (brief) petition and consider signing it.
https://www.ourcommons.ca/petitions/en/Petition/Details?Petition=e-6695
#PaymentProcessor #CreditCardCompanies #Puritanism #demonitized #opaque #stealth #Canada #censorship #content #ContentCreator #mature #adult
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#opaque : impervious to the rays of light
- French: opaque
- German: undurchsichtig, opak
- Italian: opaco
- Portuguese: opaco
- Spanish: opaco
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Word of The Hour's Annual Survey @ https://wordofthehour.org/r/form
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OpenBSD has decided to give #FILE a #makeover by making it #opaque because, you know, #transparency is so last season. 🎩✨ Meanwhile, developers everywhere are left to wonder if their #debugging #skills are good enough to see through this fashionable #change. 🤔🔍
https://undeadly.org/cgi?action=article;sid=20250717103345 #OpenBSD #fashion #HackerNews #ngated -
Stdio(3) change: FILE is now opaque (OpenBSD)
https://undeadly.org/cgi?action=article;sid=20250717103345
#HackerNews #Stdio3 #OpenBSD #FILE #opaque #change #HackerNews #tech #news
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Un #algorithme " #opaque" pour gagner plus au détriment des utilisateurs ? Les accusations fracassantes contre #Uber .
Deux études parues à une semaine d'intervalle lèvent le voile sur des pratiques très douteuses supposément mises en place par #Uber.
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Second study finds Uber used opaque algorithm to dramatically boost profits
#HackerNews #Uber #Opaque #Algorithm #Profits #Study #Technology #Transparency
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#opaque : impervious to the rays of light
- French: opaque
- German: undurchsichtig, opak
- Italian: opaco
- Portuguese: opaco
- Spanish: opaco
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Word of The Hour's Annual Survey @ https://wordofthehour.org/r/form
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Even if the fact pattern implied by this meme were literal truth, it would not LITERALLY be a reification of Cory Doctorow's (@pluralistic) enshittification concept; but it comes rather closer than any of us would want!
https://www.erosblog.com/2024/10/15/enshittification-of-a-restroom-near-you/
#Toilet #Privacy #Enshittification #PublicToilet #Transparent #Opaque #SmartGlass #PrivacyPolicy #Update #Transparency #Opacity #Voyeurism #Bathroom #Shame #Meme
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What lies ahead for AI in cybersecurity https://www.helpnetsecurity.com/2024/10/10/ai-cybersecurity-potential-video/ #artificialintelligence #cybersecurity #LogicalisUS #Redgate #Code42 #Opaque #Video #video
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implementing a #threshold #OPAQUE using 3hashTDH as the t-OPRF, trying to stay compatible with the IRTF/CFRG spec. But the OPRF evaluated element, which is part of the transcript of the client and server in the non-threshold version, cannot be part of the transcript in the threshold version.
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hah! a paper on #threshold #oprf and threshold #opaque by jarecki et al, although krawczyk is missing from the team, it still will be interesting to see how far their paper is from my toprf and topaque implementations. https://eprint.iacr.org/2024/1455
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You may have heard people #complain about #Etsy, and how their #fees are stupidly high, but that they also deliberately make them as #opaque as possible, to try to #hide that fact.
Here's an example from my own case. This is a sale of a single item from my store (https://www.etsy.com/ca/shop/RetroFutureTech) last week. It ends in *13* line items in my "accounting" reports:
-12.17
-0.14
-0.03
-0.04
-0.13
-0.60
-0.79
-2.60
-10.43
-2.75
+62.60
-0.01
-0.27Wow, $62.60 total sale! Giving a net of ... $32.64. #BS
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#MustShare Don't remain in #electoral #darkness 🙏
"most on e left tend to think of #darkmoney as exclusively a tool of #Republicans & #conservatives, e fact is tt #Democrats & #liberals also benefit heavily fr #opaque #politicalspending. Per #OpenSecrets, so far tis yr, Biden has enjoyed more dark$ support than Trump. Armiak says most #progressives hv just given up on e fight against dark$ #influence bec “so many organiz'ns, advocacy gps, & #campaigns depend on dark$ now”
https://progressive.org/magazine/dark-money-uncovered-macek-20240620/ -
Securing against GenAI weaponization https://www.helpnetsecurity.com/2024/08/08/genai-weaponization-video/ #cybersecurity #GenerativeAI #Don'tmiss #Hotstuff #strategy #Opaque #Video #video #News #CISO #tips
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I was wondering if there is already #GPU #accelerated #bruteforcers for hash-to-curve
https://datatracker.ietf.org/doc/rfc9380/ out there?
and going beyond just "simple" h2c, 2hashdh prf H(pwd, H2c(pwd)^k) seems to be popular, might as well also inquire about their support. #opaque is one case where this is being used.does anyone know?
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meanwhile i ponder how to merge opaque-store https://github.com/stef/opaque-store/ into sphinx, so that you all can store your arbitrary secrets that need more than 32 bytes of entropy.
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Owl interesting #PAKE challenging #SRP and #OPAQUE: https://www.lightbluetouchpaper.org/2024/03/22/owl-a-new-augmented-password-authenticated-key-exchange-protocol/
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#opaque : impervious to the rays of light
- French: opaque
- German: undurchsichtig, opak
- Italian: opaco
- Portuguese: opaco
- Spanish: opaco
------------
Word of The Hour's Annual Survey @ https://wordofthehour.org/r/form
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#Adesina criticizes #opaque #loans linked to #Africa's #resources
The head of the #African #Development #Bank is calling for an end to loans given in exchange for the continent's #rich #oil #reserves or essential #minerals used in #smartphones and #electric car #batteries.
This type of #borrowing has plunged many #African #countries into a #financial #crisis.
“They're just bad, first and foremost, because you can't value assets properly,” #Akinwumi Adesina said in an interview with The Associated #Press in #Lagos, #Nigeria, last week.
"If you have #minerals or #oil under the ground, how do you find a #price for a long-term #contract? It's a challenge," he explains.
Linking future revenues from #natural #resource #exports to loan #repayments is often presented as a way for recipients to obtain f#inancing for #infrastructure #projects and for lenders to reduce the #risk of not getting their money back.
The shift to #renewable #energy and #electric #vehicles has caused a spike in demand for essential minerals, which favors this type of lending. The agreement between #China and the #Congo illustrates this well. Beijing thus exploits the world's largest #reserves of #cobalt, a mineral used to #manufacture #lithium #batteries.
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Her eyes were opaque, at best,
When he first looked into them, and
That was what attracted him, who
Thought he knew everything about
Human nature, because he couldn’t
See into her and know her instantly.
As time passed, those eyes became
Even more impossible to decipher,
So he became even more needy. In
The end, she left him none the wiser,
And alone, after fifty years of loving.
He followed her the next day.