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feat: add TSA and certificate support to wasm signer#51

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thillmann wants to merge 3 commits intocontentauth:mainfrom
thillmann:wasm-signer-update
Open

feat: add TSA and certificate support to wasm signer#51
thillmann wants to merge 3 commits intocontentauth:mainfrom
thillmann:wasm-signer-update

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@thillmann
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When trying to use the Builder to embed a signed manifest in a media file, we encountered a few gaps:

  • direct_cose_handling was always set to true
  • There was no way to pass certificates down to the signing process
  • There were a few more options missing on Signer

Using the Node.js implementation as guidance, I made those changes and confirmed it was working in our sign and embedding flow.

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changeset-bot bot commented Dec 3, 2025

🦋 Changeset detected

Latest commit: fabce4a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages
Name Type
@contentauth/c2pa-wasm Minor
@contentauth/c2pa-web Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

@thillmann thillmann marked this pull request as ready for review February 26, 2026 06:55
@thillmann thillmann closed this Feb 26, 2026
@thillmann thillmann reopened this Feb 26, 2026
@thillmann thillmann force-pushed the wasm-signer-update branch from c6a964c to fabce4a Compare March 3, 2026 22:36
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