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Soh Kam Yung<p>[A] new paper [...] demonstrates a method for tricking a commercially available proof system into certifying false statements, even though the system is demonstrably secure if you accept the random oracle model."</p><p><a href="https://www.quantamagazine.org/computer-scientists-figure-out-how-to-prove-lies-20250709/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">quantamagazine.org/computer-sc</span><span class="invisible">ientists-figure-out-how-to-prove-lies-20250709/</span></a></p><p><a href="https://mstdn.io/tags/Computing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Computing</span></a> <a href="https://mstdn.io/tags/Randomness" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Randomness</span></a> <a href="https://mstdn.io/tags/HashFunctions" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HashFunctions</span></a> <a href="https://mstdn.io/tags/RandomOracle" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RandomOracle</span></a> <a href="https://mstdn.io/tags/Security" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Security</span></a> <a href="https://mstdn.io/tags/Proofs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Proofs</span></a></p>
𝕂𝚞𝚋𝚒𝚔ℙ𝚒𝚡𝚎𝚕<p>Choosing a hash function for 2030 and beyond: SHA-2 vs SHA-3 vs BLAKE3</p><p>As everyone knows, "temporary fixes" are nothing but temporary.<br>Unfortunately, the same is true for cryptography: unless security is your core value-proposition, crypto algorithms are almost never updated, and that's how we end up with SHA1-hashed password in 2024 🤦‍♂️</p><p># <a href="https://kerkour.com/fast-secure-hash-function-sha256-sha512-sha3-blake3" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">kerkour.com/fast-secure-hash-f</span><span class="invisible">unction-sha256-sha512-sha3-blake3</span></a></p><p><a href="https://chaos.social/tags/hash" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hash</span></a> <a href="https://chaos.social/tags/hashfunctions" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hashfunctions</span></a> <a href="https://chaos.social/tags/coding" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>coding</span></a> <a href="https://chaos.social/tags/sha2" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>sha2</span></a> <a href="https://chaos.social/tags/hashing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hashing</span></a> <a href="https://chaos.social/tags/itsec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>itsec</span></a> <a href="https://chaos.social/tags/itsecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>itsecurity</span></a> <a href="https://chaos.social/tags/sha3" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>sha3</span></a> <a href="https://chaos.social/tags/BLAKE3" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BLAKE3</span></a> <a href="https://chaos.social/tags/fast" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fast</span></a> <a href="https://chaos.social/tags/fastapi" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fastapi</span></a> <a href="https://chaos.social/tags/feature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>feature</span></a></p>
Hacker News<p>Procedural Textures with Hash Functions</p><p><a href="https://douglasorr.github.io/2025-04-hash-textures/article.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">douglasorr.github.io/2025-04-h</span><span class="invisible">ash-textures/article.html</span></a></p><p><a href="https://mastodon.social/tags/HackerNews" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HackerNews</span></a> <a href="https://mastodon.social/tags/ProceduralTextures" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ProceduralTextures</span></a> <a href="https://mastodon.social/tags/HashFunctions" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HashFunctions</span></a> <a href="https://mastodon.social/tags/GraphicsProgramming" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GraphicsProgramming</span></a> <a href="https://mastodon.social/tags/CreativeCoding" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CreativeCoding</span></a> <a href="https://mastodon.social/tags/TechInnovation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TechInnovation</span></a></p>
Dr Sukes<p>another day, another opportunity to be outraged by the von mises birthday paradox</p><p><a href="https://hachyderm.io/tags/ComputerScience" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ComputerScience</span></a><br><a href="https://hachyderm.io/tags/Probability" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Probability</span></a><br><a href="https://hachyderm.io/tags/HashFunctions" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HashFunctions</span></a><br><a href="https://hachyderm.io/tags/HashingAlgorithms" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HashingAlgorithms</span></a></p><p><a href="https://en.wikipedia.org/wiki/Birthday_problem" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/Birthday</span><span class="invisible">_problem</span></a></p>
Cyber-Defence Campus<p>🔒 Encryption Monday 🔒</p><p>Urs Wagner and Thomas Lugrin, both cryptologists at the Swiss Federal Administration (Bundesverwaltung), wrote a chapter about <a href="https://infosec.exchange/tags/HashFunctions" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HashFunctions</span></a> in our study on Trends in Data Protection and Encryption Technologies.</p><p>🔢 Hash functions are one-way functions that map arbitrary-length input to fixed-length output.</p><p>🔑 Cryptographic hash functions enjoy additional properties, making them suitable for many cryptographic applications.</p><p>🔐 Insecure hash functions should be discarded, and existing secure hash functions should be promoted and adequately used.</p><p>🔜 Stay tuned for next week's encryption technology.</p><p><a href="https://infosec.exchange/tags/EncryptionMonday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EncryptionMonday</span></a> <a href="https://infosec.exchange/tags/DataProtection" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataProtection</span></a> <a href="https://infosec.exchange/tags/HashFunctions" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HashFunctions</span></a></p>