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WebAuthN: "prf" extension support #7238

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lxgr opened this issue Jan 10, 2025 · 0 comments
Open

WebAuthN: "prf" extension support #7238

lxgr opened this issue Jan 10, 2025 · 0 comments

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@lxgr
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lxgr commented Jan 10, 2025

The PRF extension to WebAuthN allows deriving secret keying material from a given WebAuthN credential.

At least Chrome seems to support it behind a flag (there's a demo on the linked reference). According to some initial testing, neither Safari nor Firefox on macOS do.

Support seems to depend on both the browser and OS (as at least Firefox on macOS leans to an OS-provided API for its WebAuthN implementation).

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