PM-40154: feat: Migrate user data to KeystoreEncryptedSharedPreferences

[david-livefront]

🎟️ Tracking

PM-40154

📔 Objective

This PR creates a new KeystoreEncryptedSharedPreferences that utilizes the AndroidKeystore to encrypt the data stored.

Notable changes:

• This migrates us away from EncryptedSharedPreferences which is deprecated and is not FIPS compliant.
• The keys are not stored as plaintext.
• We currently only support the storing of Strings (this is the only type we need at the moment).

[codecov]

Codecov Report

❌ Patch coverage is 97.43590% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 85.92%. Comparing base (b0daf66) to head (1817972).

Files with missing lines	Patch %	Lines
...en/data/datasource/disk/BaseEncryptedDiskSource.kt	92.30%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7158      +/-   ##
==========================================
- Coverage   86.36%   85.92%   -0.44%     
==========================================
  Files         916     1040     +124     
  Lines       65833    67672    +1839     
  Branches     9718     9814      +96     
==========================================
+ Hits        56854    58146    +1292     
- Misses       5509     6016     +507     
- Partials     3470     3510      +40     

Flag	Coverage Δ
app-data	18.13% <82.05%> (+0.55%)	⬆️
app-ui-auth-tools	19.04% <0.00%> (+0.28%)	⬆️
app-ui-platform	17.04% <0.00%> (+0.52%)	⬆️
app-ui-vault	27.84% <0.00%> (-0.03%)	⬇️
authenticator	6.13% <46.15%> (+0.03%)	⬆️
lib-core-network-bridge	4.11% <0.00%> (-0.02%)	⬇️
lib-data-ui	1.18% <0.00%> (-0.01%)	⬇️

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[quexten]

If we had a tech breakdown beforehand, I'd recommend implementing this in the SDK based on our modern encryption primitives instead. Given the stage, I'll comment the minimum to make this reasonably secure. I recommend dropping the separate MAC key, and switching from CBC to GCM. Currently, the API is very easy to misuse, and you generally do not want to expose separate authentication and encryption (without authentication) APIs.

Outdated