2026-05-01T02:08:07Z https://yabu.me Daniel J. Bernstein https://yabu.me/npub1h8qejnzct95uvytsgw2wm2cc2k20uwkdfxwxlljk24q68djrqmxssp7w6x https://mastodon.cr.yp.to/system/accounts/avatars/109/354/967/323/996/678/original/40468ba3aab7ff1a.png https://mastodon.cr.yp.to/system/accounts/avatars/109/354/967/323/996/678/original/40468ba3aab7ff1a.png https://yabu.me/nevent1qqsfft963805t4wdmvarlczs0ypv5qk2wkw74n5e2d069m980we269qzyzuurx2vtpvkn3s3wppefmdtrp2efl36e4yecml72e25rgakgvrv6fdg3nm Impressed with the level of compatibility of the new memory-safe C/C++ compiler Fil-C (filcc, fil++; <a href="https://fil-c.org/">https://fil-c.org/</a>) based on clang. Many libraries and applications that I&#39;ve tried work under Fil-C without changes, and the exceptions haven&#39;t been hard to get working. 2025-10-21T18:14:48Z https://yabu.me/nevent1qqsfqr8kmyczm6mxt2xam8yq85sa7865jrkhznv4q5ggwz9h0dnj8gszyzuurx2vtpvkn3s3wppefmdtrp2efl36e4yecml72e25rgakgvrv693u45t Quantum computers haven&#39;t factored anything interesting yet. Peter Gutmann concludes that quantum computing is &#34;not getting anywhere&#34; (<a href="https://www.theregister.com/2025/07/17/quantum_cryptanalysis_criticism/">https://www.theregister.com/2025/07/17/quantum_cryptanalysis_criticism/</a>). The same logic 70 years ago would have said we&#39;ll never land on the Moon. More on this analogy: <a href="https://blog.cr.yp.to/20250118-flight.html#moon">https://blog.cr.yp.to/20250118-flight.html#moon</a> 2025-07-17T18:10:32Z https://yabu.me/nevent1qqsq5wy38mnr9hvgxge4jf0zeejq252s9v8yvvxvrhc239xh59v7ekqzyzuurx2vtpvkn3s3wppefmdtrp2efl36e4yecml72e25rgakgvrv6whkngl The gcc/clang excuse for changing program behavior, often introducing bugs and security holes (see <a href="https://www.usenix.org/system/files/usenixsecurity23-xu-jianhao.pdf">https://www.usenix.org/system/files/usenixsecurity23-xu-jianhao.pdf</a>), is performance. But a new paper <a href="https://web.ist.utl.pt/nuno.lopes/pubs/ub-pldi25.pdf">https://web.ist.utl.pt/nuno.lopes/pubs/ub-pldi25.pdf</a> modifies clang to eliminate most (all?) such changes, and finds negligible effect on benchmarks. 2025-04-24T09:07:22Z https://yabu.me/nevent1qqsqk5jstvyhg0e672aq689skmzp4jq3xefmsjz92erfspnhptgn7wqzyzuurx2vtpvkn3s3wppefmdtrp2efl36e4yecml72e25rgakgvrv6g53s37 New blog post <a href="https://blog.cr.yp.to/20250118-flight.html">https://blog.cr.yp.to/20250118-flight.html</a> &#34;As expensive as a plane flight: Looking at some claims that quantum computers won&#39;t work.&#34; #quantum #energy #variables #errors #rsa #secrecy 2025-01-18T18:15:58Z https://yabu.me/nevent1qqszvwc8pay7zd5cu4dmxvcvr767rdh4h9z9nqx6scd732d394tv63szyzuurx2vtpvkn3s3wppefmdtrp2efl36e4yecml72e25rgakgvrv6yj4d00 In reply to <a href='/nevent1qqsg93vqvtny0804u4qvfgdc8dqp3yuqpusknxw4nzwr3hvmw6uag5q6uw7aj'>nevent1q…w7aj</a><br/>_________________________<br/><br/>Thanks for trying it out! There&#39;s a &#34;Compatibility&#34; channel on <a href="https://zulip.pqconnect.net">https://zulip.pqconnect.net</a> for &#34;What works; what doesn&#39;t work yet; workarounds&#34;. If you post a description there of what you typed to set up your test, what you expected to see, and what you saw instead, then presumably we&#39;ll be able to get things working. 2024-12-27T18:45:27Z https://yabu.me/nevent1qqswrc74q0ms4f0tzy9h29zppx2xcvzhx4y0pujp3pcq0klxqd300lczyzuurx2vtpvkn3s3wppefmdtrp2efl36e4yecml72e25rgakgvrv6c0947g In reply to <a href='/nevent1qqs9c8k8u77w45vd99zf8cgkhfa8xrsz7n22yzzv45dy2tqu2c3fwncgtf3mr'>nevent1q…f3mr</a><br/>_________________________<br/><br/>The software automatically avoids address conflicts. It also has an option to configure the local-network choice (e.g., pqconnect -a 192.168.15.1 -m 24) for sysadmins who prefer full control. NAT doesn&#39;t meet some conceptions of beauty in network design, but it&#39;s useful for privacy, and it&#39;s how billions of people use the Internet. 2024-12-27T15:07:56Z https://yabu.me/nevent1qqsxduh7e4pv9vv40mlxlu78laqpeptafna8l744y2nrdv7zq7q7u0qzyzuurx2vtpvkn3s3wppefmdtrp2efl36e4yecml72e25rgakgvrv6k650up Pleased to announce PQConnect: <a href="https://www.pqconnect.net">https://www.pqconnect.net</a> Easy-to-install software for your Linux box (more OSes coming later) to protect network applications against future quantum computers. Paper will appear at NDSS 2025. Joint work with <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub129ep8xwtlqa9hwrh6lnzadrqlavyfrn44mw47zp7q9dm7c8tewjq6yeefk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Tanja Lange</span> (<span class="italic">npub129e…eefk</span>)</a></span>, Jonathan Levin, Bo-Yin Yang. 2024-12-27T13:27:33Z https://yabu.me/nevent1qqsd2let9m7q0gv2p5ahd4jgyskzdxjkla38kdulgxgp8m8td8d3scqzyzuurx2vtpvkn3s3wppefmdtrp2efl36e4yecml72e25rgakgvrv6m4tvdx IETF: &#34;Pervasive Monitoring Is an Attack... The IETF Will Work to Mitigate Pervasive Monitoring&#34;. Also IETF: ~&#34;It&#39;s perfectly fine that we had an NSA employee co-chairing IRTF&#39;s Crypto Forum Research Group, and that we now have an NSA employee as IETF Security Area Director.&#34; 2024-09-10T14:51:15Z