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Published
20 hours ago •
MetaMask
MetaMask
refactor!: drop uncached encryption support
Explanation
In preparation for #5940, this PR drops support for uncached encryption. Previously, KeyringController accepted a cacheEncryptionKey option that allowed the encryption key to be stored in memory and used during encryption/decryption directly as opposed to using a password. The cacheEncryptionKey option is being removed, and the encryption key is now always derived and cached when the password is provided.
This change allows to simplify #unlockKeyrings and #updateVault methods, and remove all the logic and tests related to cacheEncryptionKey. This also allows to remove this.#password, that has been replaced by this.#encryptionKey.
The this.#encryptionKey assignment logic has been moved to two new internal methods with these specific responsibilities:
#deriveEncryptionKey(string): Derives the encryption key from the password, to be used during password login and password change.#useEncryptionKey(string, string): Uses an existing encryption key to be used directly, to be used bysubmitEncryptionKeymainly.
With the upcoming changes in #5940, this allows to change the encryption key to use (i.e. by calling the aformentioned new internal methods) without having to deal with logic related to vault unlock/update, and code branches related to password-based encryption and key caching.
This PR can be tested on extension with the following: https://github.com/MetaMask/metamask-extension/pull/33613
References
- Fixes #6010
Changelog
Checklist
- [ ] I've updated the test suite for new or updated code as appropriate
- [ ] I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
- [ ] I've communicated my changes to consumers by updating changelogs for packages I've changed, highlighting breaking changes as necessary
- [ ] I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes
@matthiasgeihs this PR doesn't allow encryption key injection, but rather removes this.#password and this.#cacheEncryptionKey from the controller and it splits some of the controller encryption logic (separating key derivation and encryption/decryption). This is not a replacement for your PR (which is implementing option 3), but rather a prerequisite for it to be more maintainlable and readable.
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The main problem I see here is that it risks delaying the seedless onboarding feature. I think we should apply these optimizations after the changes needed for seedless onboarding.
Otherwise, I think these changes are worthwile looking into further.
(btw: a refactor is a code change that doesn't change functionality. so technically, this is not a refactor.)
Preview builds have been published. See these instructions for more information about preview builds.
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This can now be tested on extension using https://github.com/MetaMask/metamask-extension/pull/33613
Preview builds have been published. See these instructions for more information about preview builds.
Expand for full list of packages and versions.
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| Diff | Package | Supply Chain Security |
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|---|---|---|---|---|---|---|
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Preview builds have been published. See these instructions for more information about preview builds.
Expand for full list of packages and versions.
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