LGTM1
/Daniel
On 2025-03-31 11:42, Javier Fernandez wrote:
Contact emails
jfernan...@igalia.com
Explainer
https://github.com/WICG/webcrypto-secure-curves/blob/main/explainer.md
Specification
https://w3c.github.io/webcrypto/#ed25519
Design docs
https://docs.google.com/document/d/1fDTUY3HVAXehi-eSfbi7nxh8ZPw4MpSKM8U1fMdqJlU/edit?usp=sharing
Summary
This feature adds support for Curve25519 algorithms in the Web
Cryptography API, namely the signature algorithm Ed25519
Blink component
Blink
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%22>
TAG review
https://github.com/w3ctag/design-reviews/issues/466
TAG review status
Issues addressed
Risks
Interoperability and Compatibility
WebCrypto API was specified to allow the addition of new (normalized)
crypto algorithms. When an algorithm is not yet supported by a
browser, an exception of unrecognized algorithms would be thrown after
invoking related APIs.
/Gecko/: Shipped/Shipping
(https://bugzilla.mozilla.org/show_bug.cgi?id=1804788)https://www.mozilla.org/en-US/firefox/130.0/releasenotes/
/WebKit/: Shipped/Shipping
(https://bugs.webkit.org/show_bug.cgi?id=246145)https://developer.apple.com/documentation/safari-technology-preview-release-notes/stp-release-178
/Web developers/: No signals
/Other signals/:
WebView application risks
Debuggability
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?
Yes
Is this feature fully tested byweb-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
Yes
https://wpt.fyi/results/WebCryptoAPI?label=experimental&label=master&aligned
<https://wpt.fyi/results/WebCryptoAPI?label=experimental&label=master&aligned>
Flag name on about://flags
WebCryptoEd25519
Finch feature name
None
Non-finch justification
The feature has been implemented behind WebCryptoEd25519 runtime flag.
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1370697
Availability expectation
The feature is already available on the Web Platform, and shipped
enabled by default in Firefox and Safari.
Adoption expectation
This feature is considered a best practice for web apps that need
support of Ed25519 signing and X25519 key sharing. Relying on external
libraries (JS, WASM) is the alternative and implies security risks.
Estimated milestones
Shipping on desktop 137
Shipping on Android 137
Shipping on WebView 137
Shipping on iOS 137
Anticipated spec changes
small-order checks
-https://github.com/WICG/webcrypto-secure-curves/issues/27
randomized signatures
-https://github.com/WICG/webcrypto-secure-curves/issues/28
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/4913922408710144?gate=5015367861141504
Links to previous Intent discussions
Intent to
Prototype:https://groups.google.com/a/chromium.org/d/msgid/blink-dev/faf4f153-1d4c-915d-53d0-0968833cfe55%40igalia.com
This intent message was generated byChrome Platform Status
<https://chromestatus.com/>.
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