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CosicBe🚨 Save the date! 🚨 Join us in sunny Albena for the PQCSA Summer School, 16–20 June 2025! 🔐 Learn the fundamentals of <a href="https://mastodon.social/tags/PostQuantumCryptography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PostQuantumCryptography</a> 📚 Dive into NIST's PQC standards 🛠️ Explore integration challenges & future research 🌊 Beach + crypto = perfect combo💸 Early bird: €310 (before 23/05) 🎟️ Regular: €360<a href="https://mastodon.social/tags/PQC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQC</a> <a href="https://mastodon.social/tags/CyberSecurity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CyberSecurity</a> <a href="https://mastodon.social/tags/CryptoSummerSchool" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CryptoSummerSchool</a> <a href="https://mastodon.social/tags/PQCSA2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQCSA2025</a>Registration and info: <a href="https://www.esat.kuleuven.be/cosic/events/pqcsa-summer-school/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.esat.kuleuven.be/cosic/events/pqcsa-summer-school/</a>

Frederic JacobsGreat call to action by Robbie King on finding more useful quantum algorithms. Billions of euros have been spent on research for advancing the development of quantum computers, but what are they useful for?As the post-quantum transition progresses, the main incentive for quantum computers is going away.Robbie claims "The bar for meaningful progress is lower than it might seem, and even incremental advances are valuable.”<a href="https://quantumfrontiers.com/2025/04/20/quantum-algorithms-a-call-to-action/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://quantumfrontiers.com/2025/04/20/quantum-algorithms-a-call-to-action/</a><a href="https://mastodon.social/tags/QuantumComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#QuantumComputing</a> <a href="https://mastodon.social/tags/PQC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQC</a>

Berndt.LegalPQC – Eine PKI für das Quantenzeitalter | Die Entwicklung der Post Quantum Cryptography (<a href="https://mastodon.social/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a>), also neuer quantenresistenter Algorithmen, ist schon weit vorangeschritten. Im Sommer des vergangenen Jahres hat das <a href="https://mastodon.social/tags/NIST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NIST</a> die drei ersten quantenresistenten Algorithmen, FIPS 203, 204 und 205, vorgestellt. <a href="https://www.it-daily.net/it-sicherheit/cloud-security/pqc-pki-bereit-quantenzeitalter" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.it-daily.net/it-sicherheit/cloud-security/pqc-pki-bereit-quantenzeitalter</a>

:bongoCat:I have a small hunch why IBM has a tool that generates a <a href="https://mastodon.social/tags/CBOM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CBOM</a> and tells you if they are <a href="https://mastodon.social/tags/quantum" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#quantum</a> safe or not...Suffice to say that it's a reminiscent of the time that Altman traveled around the world and warned everyone that his <a href="https://mastodon.social/tags/hallucination" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#hallucination</a> machine is an existential threat to humanity.<a href="https://mastodon.social/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a>

CosicBeJoin our <a href="https://mastodon.social/tags/PQCSA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQCSA</a> summer school in Albena, Bulgaria from 16-20 June 2025! The goal of this school is to introduce the fundamentals of <a href="https://mastodon.social/tags/PQC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQC</a>, its necessity, and the current threat landscape. Info and registration: <a href="https://www.esat.kuleuven.be/cosic/events/pqcsa-summer-school/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.esat.kuleuven.be/cosic/events/pqcsa-summer-school/</a>

Stéphane Bortzmeyer<a href="https://mastodon.gougere.fr/tags/quantique" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#quantique</a> <a href="https://mastodon.gougere.fr/tags/cryptographie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cryptographie</a> <a href="https://mastodon.gougere.fr/tags/PQC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQC</a>J'apprends le terme de Q-day, qui désigne le jour où un CRQC (Cryptographically Relevant Quantum Computer, prononcer "cric") cassera tout. Le Q-day, selon les meilleurs experts, est entre deux et cent ans dans le futur.C'est même déjà dans Wikipédia anglophone <a href="https://en.wikipedia.org/wiki/Q-Day" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://en.wikipedia.org/wiki/Q-Day</a>

Harry SintonenAbout a third of the WWW <a href="https://infosec.exchange/tags/TLS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TLS</a> traffic is using post-quantum encryption, which is protected against quantum factoring attacks such as Shor's algorithm. This has been achieved since Hybrid ML-KEM has been widely adopted by most web browsers and large service providers such as Cloudflare, Google, AWS, etc. There are no absolute figures available, but for example, Cloudflare has nice statistics about PQ encryption use on their services: <a href="https://radar.cloudflare.com/adoption-and-usage#post-quantum-encryption-adoption" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://radar.cloudflare.com/adoption-and-usage#post-quantum-encryption-adoption</a>The best part of this adoption is that users haven't had to do anything, or even know that this has been happening. As it should be.<a href="https://infosec.exchange/tags/transportlayersecurity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#transportlayersecurity</a> <a href="https://infosec.exchange/tags/tls" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tls</a> <a href="https://infosec.exchange/tags/postquantumcryptography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postquantumcryptography</a> <a href="https://infosec.exchange/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a>

Harry Sintonen<a href="https://infosec.exchange/tags/Qualys" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Qualys</a> needs to update their TLS client test to support the new signature algorithms and named groups. There are a fair number of "unknown" entries with <a href="https://infosec.exchange/tags/OpenSSL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenSSL</a> 3.5. <a href="https://clienttest.ssllabs.com:8443/ssltest/viewMyClient.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://clienttest.ssllabs.com:8443/ssltest/viewMyClient.html</a><a href="https://infosec.exchange/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a> <a href="https://infosec.exchange/tags/pqcrypto" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqcrypto</a>

Fiona :transbian: :autism:The paper I co-authored (“A Critical Analysis of Deployed Use Cases for Quantum Key Distribution and Comparison with Post-Quantum Cryptography”) was accepted for publication by “EPJ Quantum Technology” today. 😊 <a href="https://eprint.iacr.org/2025/173" rel="nofollow noopener noreferrer" target="_blank">You can find the preprint here</a>, Nick will eventually update it with the final changes. In short: We looked into existing use-cases for <a href="https://blahaj.zone/tags/QuantumKeyDistribution" rel="nofollow noopener noreferrer" target="_blank">#QuantumKeyDistribution</a> and whether they make any sense and did so as a joint team between people with a QKD-background and cryptographers who started out very critical of QKD. (I’m firmly in the latter camp.) My personal summary (though some of my co-authors won’t share it to this extend): <a href="https://blahaj.zone/tags/QKD" rel="nofollow noopener noreferrer" target="_blank">#QKD</a> is bullshit and not useful for practical purposes as it stands. <a href="https://blahaj.zone/tags/crypto" rel="nofollow noopener noreferrer" target="_blank">#crypto</a> <a href="https://blahaj.zone/tags/cryptography" rel="nofollow noopener noreferrer" target="_blank">#cryptography</a> <a href="https://blahaj.zone/tags/cryptology" rel="nofollow noopener noreferrer" target="_blank">#cryptology</a> <a href="https://blahaj.zone/tags/postquantumcrypto" rel="nofollow noopener noreferrer" target="_blank">#postquantumcrypto</a> <a href="https://blahaj.zone/tags/PQC" rel="nofollow noopener noreferrer" target="_blank">#PQC</a>

Jan SchaumannOpenSSH 10.0 just landed, now completely removing DSA signature support (you've been warned, repeatedly :-) and finite-field diffie-hellman key exchange. It also enables mlkem768x25519-sha256 as the default kex! (<a href="https://mstdn.social/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a>)The new version string ("OpenSSH_10.0") is also likely to confuse a bunch of stupid scanners that assume anything starting with "OpenSSH_1" is a 1.x version.<a href="https://www.openssh.com/txt/release-10.0" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.openssh.com/txt/release-10.0</a>

testssl.sh :verified:<a href="https://infosec.exchange/tags/OpenSSL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenSSL</a> 3.5.0 LTS release with some <a href="https://infosec.exchange/tags/PQC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQC</a> algorithms, server side <a href="https://infosec.exchange/tags/QUIC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#QUIC</a> support and more

CosicBeWe are organizing a <a href="https://mastodon.social/tags/PQCSA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQCSA</a> summer school in Albena from 16-20 June 2025 to introduce the fundamentals of <a href="https://mastodon.social/tags/PQC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQC</a>. More info and registration on: <a href="https://www.esat.kuleuven.be/cosic/events/pqcsa-summer-school" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.esat.kuleuven.be/cosic/events/pqcsa-summer-school</a>

Alexander Hansen FærøyThis is undoubtedly the most promising Post-Quantum TLS deployment situation I have seen for <a href="https://mastodon.social/tags/Tor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Tor</a> since we started discussing it more actively in the team. Very exciting!I hope that OpenSSL 3.5, when released, will make it into <a href="https://mastodon.social/tags/Debian" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Debian</a> Trixie. That would make deployment of this so much more snappy and easy for the Tor network to upgrade, but that may be dreaming. The timelines here look quite difficult for that to happen, but let's hope.<a href="https://mastodon.social/tags/cryptography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cryptography</a> <a href="https://mastodon.social/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a> <a href="https://mastodon.social/tags/pqcrypto" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqcrypto</a>

Alexander Hansen FærøyLo and behold, <a href="https://mastodon.social/tags/OpenSSL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenSSL</a> 3.5 (their upcoming LTS release) will come out here at the beginning of April, and it does indeed support some of these hybrid PQC schemes. Their recent beta2 announcement can be read here: <a href="https://openssl-library.org/post/2025-03-25-openssl-3.5-beta/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://openssl-library.org/post/2025-03-25-openssl-3.5-beta/</a> and their roadmap is at <a href="https://openssl-library.org/roadmap/index.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://openssl-library.org/roadmap/index.html</a>Very excited by this work. Big kudos to the OpenSSL Team here! 🥳🎉 Already planning on giving this a spin with the C implementation of <a href="https://mastodon.social/tags/Tor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Tor</a> later this week to see how it goes!<a href="https://mastodon.social/tags/foss" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#foss</a> <a href="https://mastodon.social/tags/cryptography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cryptography</a> <a href="https://mastodon.social/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a>

Jan SchaumannThis Venn diagram showing which PQ algorithms are permitted by which government regulatory body from Mike Ounsworth's presentation at the Real World Post-Quantum Cryptography Workshop last week.(Mike gave a version of that talk earlier this year at the PKIC conf: <a href="https://pkic.org/events/2025/pqc-conference-austin-us/WED_BREAKOUT_1200_Mike-Ounsworth_Architecting-PKI-Hierarchies-for-Graceful-PQ-Migration.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://pkic.org/events/2025/pqc-conference-austin-us/WED_BREAKOUT_1200_Mike-Ounsworth_Architecting-PKI-Hierarchies-for-Graceful-PQ-Migration.pdf</a>)<a href="https://mstdn.social/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a>

0xKaishakuninSicherheits-Architekt. Wenn du vormittags elliptische Kurven für die Post-Quanten-Kryptographie evaluieren darfst und nachmittags einem Projektmanager erklären musst, dass das Telefon kein sicherer Kanal ist. <a href="https://mastodon.social/tags/ecc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ecc</a> <a href="https://mastodon.social/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a> <a href="https://mastodon.social/tags/security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#security</a> <a href="https://mastodon.social/tags/crypto" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#crypto</a> <a href="https://mastodon.social/tags/fml" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fml</a>

Jan SchaumannPost-Quantum <a href="https://mstdn.social/tags/DNSSEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DNSSEC</a> Testbed with BIND and PowerDNS <a href="https://pq-dnssec.dedyn.io/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://pq-dnssec.dedyn.io/</a><a href="https://mstdn.social/tags/dns" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dns</a> <a href="https://mstdn.social/tags/RealWorldCrypto" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RealWorldCrypto</a> <a href="https://mstdn.social/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a>

gtbarryUK urges critical orgs to adopt quantum cryptography by 2035The UK's National Cyber Security Centre (NCSC) has published specific timelines on migrating to post-quantum cryptography (PQC), dictating that critical organizations should complete migration by 2035.<a href="https://mastodon.social/tags/PQC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQC</a> <a href="https://mastodon.social/tags/quantum" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#quantum</a> <a href="https://mastodon.social/tags/cryptography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cryptography</a> <a href="https://mastodon.social/tags/encryption" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#encryption</a> <a href="https://mastodon.social/tags/UK" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#UK</a> <a href="https://mastodon.social/tags/security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#security</a> <a href="https://mastodon.social/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cybersecurity</a> <a href="https://mastodon.social/tags/hacking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#hacking</a> <a href="https://mastodon.social/tags/infosec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#infosec</a><a href="https://www.bleepingcomputer.com/news/security/uk-urges-critical-orgs-to-adopt-quantum-cryptography-by-2035/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.bleepingcomputer.com/news/security/uk-urges-critical-orgs-to-adopt-quantum-cryptography-by-2035/</a>

John LeonardThe NCSC’s advisory deadline of 2035 for organisations to introduce quantum-safe algorithms is too late, according to some industry insiders.The NCSC’s advisory deadline of 2035 for organisations to introduce quantum-safe algorithms is too late, according to some industry insiders.<a href="https://www.computing.co.uk/news/2025/security/ncsc-s-quantum-safety-deadlines-too-optimistic-say-industry-insiders" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.computing.co.uk/news/2025/security/ncsc-s-quantum-safety-deadlines-too-optimistic-say-industry-insiders</a><a href="https://mastodon.social/tags/ncsc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ncsc</a> <a href="https://mastodon.social/tags/quantum" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#quantum</a> <a href="https://mastodon.social/tags/pqc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pqc</a> <a href="https://mastodon.social/tags/uk" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#uk</a> <a href="https://mastodon.social/tags/qkd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#qkd</a> <a href="https://mastodon.social/tags/technews" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#technews</a> <a href="https://mastodon.social/tags/infosec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#infosec</a> <a href="https://mastodon.social/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cybersecurity</a>

Jan SchaumannOut of the top 100K domains, roughly 28K negotiate a quantum safe key exchange.Almost all of those support both x25519_kyber768 and X25519MLKEM758; only 129 sites support SecP256r1MLKEM768. There are _no_ sites that support pure <a href="https://mstdn.social/tags/PQC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PQC</a> via e.g., mlkem768.The overwhelming majority of sites that support PQC do so by way of Cloudflare. That percentage matches Cloudflare's overall coverage of the top 1M domains.

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