On Wednesday, January 8, 2025 at 5:59:00 PM UTC+1 Paul Jensen wrote:
Contact emails pauljen...@chromium.org Explainer https://github.com/WICG/turtledove/pull/1342 https://github.com/WICG/turtledove/pull/1343 Can you please point at relevant sections in the explainer, rather than PR diffs? Specification The web platform portion of the specification: https://github.com/WICG/ turtledove/pull/1340 Here as well, pointing to relevant sections of the spec would be helpful. The interface to the Trusted Key-Value Server endpoint: https://privacysandbox.github.io/draft-ietf-protected- audience-key-value-service/draft-ietf-protected-audience- key-value-services.html Summary During Protected Audience (PA) API ad selection auctions, buyers and sellers are able to fetch real-time signals from servers. As a temporary mechanism, the buyer and seller can fetch these signals from any server, including one they operate themselves (a "Bring Your Own Server" model); this change does not remove this support. To improve user privacy and enable new functionality, in the future versions of PA, the request will only be sent to a trusted key-value-type server. The server is verified by external parties to ensure it’s running an approved binary built from the open source key-value server code and is running in a trusted execution environment (TEE), and only then is allowed access to decryption keys. This proposal adds support to Chrome to communicate with these trusted key-value servers using an encrypted protocol ensuring that only the appropriately trusted servers can decrypt and respond, thus ensuring the protocol and server maintain desired privacy characteristics. Blink component Blink>InterestGroups <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EInterestGroups> TAG review For Protected Audience: https://github.com/w3ctag/design-reviews/issues/723 TAG review status Completed for PA, resolved unsatisfied. Risks Interoperability and Compatibility Optional new functionality that does not break existing use. Gecko & WebKit: For PA in general - Negative from Mozilla <https://github.com/mozilla/standards-positions/issues/770#issuecomment-2432124085>. No signal from Webkit <https://github.com/WebKit/standards-positions/issues/158#issuecomment-2432121278> . Edge: Edge is running an Origin Trial of the Ad Selection API <https://github.com/WICG/privacy-preserving-ads/blob/main/README.md> which shares a Web API and services protocol with PA. Web developers: At least four companies have expressed interest in another feature <https://github.com/WICG/turtledove/issues/1105> (also here <https://github.com/privacysandbox/protected-auction-key-value-service/issues/72#issuecomment-2485843775>) that is blocked <https://github.com/WICG/turtledove/issues/1105#issuecomment-2043779939> on Trusted Key-Value Server Support in the browser. Debuggability HTTPS requests to Trusted Key-Value Servers are visible in the Chrome DevTools Network pane. Response values are visible by setting breakpoints in PA bidding scripts. Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)? It will be supported on all platforms that support PA, so all but WebView. Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ? We have started WPTs <https://chromium-review.googlesource.com/c/chromium/src/+/6050105> and plan to finish them soon. Flag name on chrome://flags None Finch feature name ProtectedAudienceTrustedKVSupport Requires code in //chrome? False Estimated milestones Shipping on desktop and Android in M132. Anticipated spec changes None Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5072384013631488?gate=5125481377300480 This intent message was generated by Chrome Platform Status <https://chromestatus.com/>. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/be4b029c-2bdd-47e3-a2af-ae1ee96becban%40chromium.org.
