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List of Interesting Experimental Flags for Google Chrome to Try Out
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<blockquote data-quote="SpiderWeb" data-source="post: 901037" data-attributes="member: 88686"><p>I have been using the post-quantum key exchange flag for 2 months now with no issues. What you will see in the Security tab is "CECPQ2" (screenshot) as you navigate Google and Cloudflare websites. It's a combination of X25519 + an updated structured-lattice scheme (NTRU-HRSS). The links below go into way better detail. For me it appears to only trigger PQ encryption on Google domains but it's still worth turning on:</p><p></p><p>[ICODE]chrome://flags/#post-quantum-cecpq2[/ICODE]</p><p></p><p>Information on CECPQ2:</p><p>[URL unfurl="true"]https://blog.cloudflare.com/the-tls-post-quantum-experiment/[/URL]</p><p>[URL unfurl="true"]https://www.imperialviolet.org/[/URL]</p><p><a href="https://csrc.nist.gov/CSRC/media/Presentations/measuring-tls-key-exchange-with-post-quantum-kem/images-media/sullivan-session-1-paper-pqc2019.pdf" target="_blank">NIST Research Presentation </a> (PDF)</p><p></p><p>Observations:</p><p>-I have not noticed a discernible difference in performance compared to TLS 1.3 with just X25519</p><p>-It is slower than QUIC X25519 and Google Chrome will prefer QUIC over TLS 1.3 CECPQ2</p><p>-There are reports that it does break a few sites (ERR_CONNECTION_RESET): <a href="https://bugs.chromium.org/p/chromium/issues/detail?id=1028602" target="_blank">Source</a></p></blockquote><p></p>
[QUOTE="SpiderWeb, post: 901037, member: 88686"] I have been using the post-quantum key exchange flag for 2 months now with no issues. What you will see in the Security tab is "CECPQ2" (screenshot) as you navigate Google and Cloudflare websites. It's a combination of X25519 + an updated structured-lattice scheme (NTRU-HRSS). The links below go into way better detail. For me it appears to only trigger PQ encryption on Google domains but it's still worth turning on: [ICODE]chrome://flags/#post-quantum-cecpq2[/ICODE] Information on CECPQ2: [URL unfurl="true"]https://blog.cloudflare.com/the-tls-post-quantum-experiment/[/URL] [URL unfurl="true"]https://www.imperialviolet.org/[/URL] [URL='https://csrc.nist.gov/CSRC/media/Presentations/measuring-tls-key-exchange-with-post-quantum-kem/images-media/sullivan-session-1-paper-pqc2019.pdf']NIST Research Presentation [/URL] (PDF) Observations: -I have not noticed a discernible difference in performance compared to TLS 1.3 with just X25519 -It is slower than QUIC X25519 and Google Chrome will prefer QUIC over TLS 1.3 CECPQ2 -There are reports that it does break a few sites (ERR_CONNECTION_RESET): [URL='https://bugs.chromium.org/p/chromium/issues/detail?id=1028602']Source[/URL] [/QUOTE]
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