Yikes, #Encryption’s #Y2K Moment is Coming Years Early

https://www.eff.org/deeplinks/2026/04/yikes-encryptions-y2k-moment-coming-years-early

#PQE #cryptography #cybersecurity

In an E2EE system, how does Alice know what Bob's public key is?

#cryptography

Fun post pointed out by Werner Koch on the GPG "post-quantum defaults" thread:

https://www.metzdowd.com/pipermail/cryptography/2026-March/039449.html

"""
Quantum Cryptography, while intellectually neat, does not present a
practical attack that we need protection against at this time.
Kleptographic Standards on the other hand are very much a practical
attack that we need to protect against at this time.

When a standards body tells you that you should cast aside well-studied
cryptographic algorithms which have earned their trust through dozens of
years of examination, testing, and motivated attackers, for the sake of
protection against Quantum Crypto? The attack you should be protecting
against isn’t Quantum Crypto.
"""

#cryptography #QuantumCryptography #security

As someone with an interest in cryptography and, I guess as an extension, tradecraft (shout out to Minnesota Spy Club), I thought it was interesting that the Irish military intelligence agency (formerly "J2") decided to "decloak" in the Irish Times:

• https://www.irishtimes.com/podcasts/in-the-news/the-spy-service-protecting-ireland-inc/ [podcast]
• https://www.irishtimes.com/ireland/2026/04/04/the-spy-is-the-boring-guy-in-a-suit-inside-the-states-military-intelligence-service/ [interview]

It all seems reasonable enough but I don't know about the whole thing about protecting (among other things) "Irish business interests abroad." And then to tell us that they're working for "Ireland Inc.?" IDK. Not really the kind of public image that inspires confidence.

#Spooks #Cryptography #Tradecraft #Facebook #Meta #RegulatoryCapture #Corporatism

RE: https://mastodon.social/@lobsters/116365296621456308

OK, Cloudflare is following suit to accelerate their timeline to migrate to post-quantum resistant #cryptography

I'm seeing a real y2k-like problem coming towards the industry, organisations and 'the world'. Only difference is, that there's no distinct point in time as it was with y2k.

BTW, while we're at it, might also mention the #y2k38 problem to hit us.

Ain't gonna be stress free to get all ducks in a row.

@countdownY2K38

For all you encryption geeks out there, I just dropped a real-time client-based Double-ROT-13 cipher. Try it out in your browser now!

https://zeyus.neocities.org/dr13

#encryption #cipher #rot13 #cryptography

Alt...

A screenshot from the linked page (https://zeyus.neocities.org/dr13) It shows the text: Double ROT-13 Encryption ROT-13 is a special case of the Caesar cipher which was developed in ancient Rome, and used by Julius Caesar in the 1st century BC [https://en.wikipedia.org/wiki/ROT13] ROT-13 helped Julius Caesar keep his secrets, but in our modern times non-rulers also have access to basic math and sometimes a calculator, making ROT-13 a little less secure. So, why not make it twice as strong by using a Double ROT-13 algorithm! Try it out for yourself below: [TEXT INPUT WITH VALUE: "Top Secret Code"] ROT13: Gbc Frperg Pbqr Double ROT13: Top Secret Code

The Cryptographic Zombie: How Keybase Went from Privacy Darling to Zoom’s Cleanup Crew

Once the ultimate geek flex for cypherpunks, Keybase promised to make PGP cryptography accessible to mere mortals. Today, it hovers in the digital ether as a "zombie" app. Here is the story of how a revolutionary open-sour

https://schulz.dk/2026/04/06/the-cryptographic-zombie-how-keybase-went-from-privacy-darling-to-zooms-cleanup-crew/

#Misc #Privacy #Security #cryptography #nostalgia #security

A Cryptography Engineer's Perspective on Quantum Computing Timelines

https://words.filippo.io/crqc-timeline/

#HackerNews #Cryptography #QuantumComputing #TechInsights #FutureOfTech

#Ente: Our #Rust crypto was audited. The real find was the auditor.

https://ente.com/blog/rust-crypto-audit/

#cybersecurity #cryptography #audit

Is this a #secure #MessagingApp? Maybe not yet, but it’s time to think about #DigitalPrivacy.

Imagine a #Messaging platform that’s as #secure as #Signal but requires #NoRegistration and #NoInstallation. By leveraging #WebRTC for direct #BrowserToBrowser communication, this #OpenSource project eliminates the #Middleman entirely. Simply share a unique #URL to establish an #Encrypted #PrivateChannel. It is a #Lightweight, #Disposable method to bypass #DataHarvesting and reclaim #DigitalSovereignty.

This project introduces a new #Paradigm in #ClientSide managed #Encryption. Send #Secure messages with #NoSetup, #NoCloud, and #NoTrace.

Experience the #Features:
* #PWA (#ProgressiveWebApp) for instant access
* #P2P (#PeerToPeer) connectivity
* #EndToEndEncryption (#E2EE)
* #SignalProtocol & #PostQuantum #Cryptography
* #Multimedia, #FileTransfer, & #VideoCalls
* #NoDatabase & #Stateless architecture
* #TURN server support for reliable connections

While not yet a direct replacement for #Simplex or #WhatsApp, this introduces a unique approach to #SecureCommunication.

Try the #LiveDemo now:
https://p2p.positive-intentions.com/iframe.html?globals=&id=demo-p2p-messaging--p-2-p-messaging&viewMode=story

Explore the #Technical roadmap:
https://positive-intentions.com/docs/technical/p2p-messaging-technical-breakdown

Read the full #Documentation:
https://positive-intentions.com/docs/technical

#PrivacyTech #Privacy #CyberSecurity #Infosec #WebDev #JavaScript #Decentralized #EncryptionProtocol #QuantumResistant #Tech #FOSS #SoftwareEngineering #DataPrivacy #SecureChat #NoLog #P2PChat #WebRTCProtocol #Coding #DevCommunity #DigitalPrivacy #InternetFreedom #SecureMessaging #WebTech #AppDevelopment #CryptographyResearch #PrivateMessaging #WebPlatform #ZeroTrust #Innovation

Alt...

Pi

Ars Technica: Google bumps up Q Day deadline to 2029, far sooner than previously thought. “Google is dramatically shortening its readiness deadline for the arrival of Q Day, the point at which existing quantum computers can break public-key cryptography algorithms that secure decades’ worth of secrets belonging to militaries, banks, governments, and nearly every individual on earth.”

Google bumps up Q Day deadline to 2029, far sooner than previously thought

Google is dramatically shortening its readiness deadline for the arrival of Q Day, the point at which existing quantum computers can break public-key cryptography algorithms that secure decades’ worth of secrets belonging to militaries, banks, governments, and nearly every individual on earth

#quantum #quantumcomputing #QDay #encryption #cryptography #PQC #security #cybersecurity

https://arstechnica.com/security/2026/03/google-bumps-up-q-day-estimate-to-2029-far-sooner-than-previously-thought/

Cryptography on the web: the illusion of safety

https://negativepid.blog/cryptography-on-the-web-the-illusion-of-safety/

#cryptography #encryption #tech #Cybersecurity #cyberattacks #cyberThreats #onlineSecurity #negativepid

Public-key cryptography

https://negativepid.blog/public-key-cryptography/

#cryptography #PKC #Internet #secrets #tech #IT #science #STEM #computing #AI #quantumComputing #innovation #Cybersecurity #onlineSecurity #negativepid

#Android17 is Getting a Post Quantum #Cryptography Upgrade

https://www.privacyguides.org/news/2026/03/26/android-17-is-getting-a-post-quantum-cryptography-upgrade/

#cybersecurity #Android #PQE #PQC

#Google bumps up #QDay deadline to 2029, far sooner than previously thought

https://arstechnica.com/security/2026/03/google-bumps-up-q-day-estimate-to-2029-far-sooner-than-previously-thought/

#cybersecurity #QuantumCryptography #cryptography #PQE

WolfGuard: WireGuard with FIPS 140-3 cryptography

https://github.com/wolfssl/wolfguard

#HackerNews #WolfGuard #WireGuard #FIPS1403 #cryptography #cybersecurity #VPN

A very nice explanation on why #cryptography of one-time pad as used by the famous spy “number stations” still has some advantages over the modern digital methods

https://www.abc.net.au/listen/programs/sundayextra/numbers-stations/106479364

Cryptography on the web: the illusion of safety

https://negativepid.blog/cryptography-on-the-web-the-illusion-of-safety/

#cryptography #encryption #tech #Cybersecurity #cyberattacks #cyberThreats #onlineSecurity #negativepid

#DOI https://doi.org/10.5281/zenodo.18448042

A pangram is a sentence or phrase that contains each letter of an alphabet or character set at least once. A perfect pangram is an anagram of the alphabet which contains each letter exactly once.

Pangram hash generates a perfect pangram hash digest consisting of a anagram permutation of a character set. Each character in the output is unique and non-repeating.

#Hashing #Cryptography #Anagrams #Papers #Preprints

Impagliazzo's Five Worlds
https://www.youtube.com/watch?v=9Rs9_cIEbWY

"A Personal View of Average-Case Complexity" by R. Impagliazzo (1995)

Algorithmica: P = NP, Hard problems are easy to solve. Optimization is effortless.

Heuristica: NP is hard in the worst case, but easy on average.We can't prove problems are easy, but they usually are in practice.

Pessiland: Hard-on-average problems exist, but one-way functions do not.We can't solve problems, but we also can't do cryptography. The worst case.

Minicrypt: One-way functions exist. Private-key cryptography (AES, SHA) is possible, but public-key is not.

Cryptomania: Public-key cryptography is possible. Oblivious transfer and secure multi-party computation exist.

#cryptography #compsci #complexity #algorithms

Using #cryptography for anonymous ID verfification --- cool and useful! @matthew_d_green

https://blog.cryptographyengineering.com/2026/03/02/anonymous-credentials-an-illustrated-primer/

Public-key cryptography

https://negativepid.blog/public-key-cryptography/

#cryptography #PKC #Internet #secrets #tech #IT #science #STEM #computing #AI #quantumComputing #innovation #Cybersecurity #onlineSecurity #negativepid

#TuringAward Goes to Inventors of #Quantum #Cryptography

https://www.nytimes.com/2026/03/18/technology/turing-award-winners-quantum-cryptography.html

#cybersecurity #encryption

Here’s a fun and accessible framing of the history of why you can buy things and chat securely on the internet. It continues to be a question of whether it is a right or privilege. That conversation is not over. This is a good place to join it:

#technology #cryptography

https://youtu.be/4paC5Obh9oI

#Intel Demos Chip to Compute With Encrypted Data

https://spectrum.ieee.org/fhe-intel

#Heracles #HomomorphicEncryption #cybersecurity #cryptography

FYI: Meta's Messenger gets a cryptographic shield nobody asked about - but everyone needed: Meta yesterday detailed the cryptography and confidential computing architecture behind Advanced Browsing Protection in Messenger, a tool that scans malicious links inside end-to-end encrypted chats without exposing user URLs to its own servers. https://ppc.land/metas-messenger-gets-a-cryptographic-shield-nobody-asked-about-but-everyone-needed/ #Meta #Messenger #Cryptography #Privacy #CyberSecurity

Very interesting, sounds like a good team,
"IBM researchers are working with the developers of the secure messaging platforms Signal and Threema to design cryptographic systems that can resist future quantum computer attacks."
https://cyberinsider.com/ibm-partners-with-signal-to-develop-quantum-safe-messaging-encryption/
#quantum #signal #threema #cryptography #encryption #cybersecurity #IBM

ICYMI: Meta's Messenger gets a cryptographic shield nobody asked about - but everyone needed: Meta yesterday detailed the cryptography and confidential computing architecture behind Advanced Browsing Protection in Messenger, a tool that scans malicious links inside end-to-end encrypted chats without exposing user URLs to its own servers. https://ppc.land/metas-messenger-gets-a-cryptographic-shield-nobody-asked-about-but-everyone-needed/ #Meta #Messenger #Cryptography #CyberSecurity #PrivacyProtection