[Webkit-unassigned] [Bug 193590] add support for encrypted localstorage

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=193590

Darren Mo <empire_utopian.0v at icloud.com> changed:

           What    |Removed                     |Added
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                 CC|                            |empire_utopian.0v at icloud.co
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--- Comment #3 from Darren Mo <empire_utopian.0v at icloud.com> ---
+1 to encrypting the entire `WebsiteDataStore`.

One use case would be to add an extra layer of protection for sensitive data in addition to filesystem-level encryption. As far as I know, there is no per-user encryption on macOS and no per-app encryption on Darwin platforms.

Geoffrey, do you have some thoughts on how to implement such a feature? I’m new to WebKit. I assume we need to
- Accept an encryption key. Should we support a single encryption algorithm/key type or support multiple?
- Encrypt/decrypt data. Does this happen inside `WebsiteDataStore`? Are there existing cross-platform WebKit APIs for encryption/decryption that we can reuse?

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