Problem: no end-to-end encryption module

[yihuang]

WIP: #1406

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Summary by CodeRabbit

• New Features

  • Introduced end-to-end encryption (E2EE) capabilities for secure messaging and key management.
  • Added functionality to register and query encryption keys.

• Enhancements

  • Updated the app structure to support new encryption features.

• Documentation

  • Added comprehensive documentation for the new E2EE module.

• Bug Fixes

  • Ensured encryption keys are properly managed during app upgrades.

[coderabbitai]

Walkthrough

The recent updates focus on integrating an end-to-end encryption (E2EE) service into a blockchain application. This includes defining a protocol buffer for querying encryption keys and introducing message types for registering encryption keys for specific accounts. Additionally, changes in various files like app/app.go and new files like x/e2ee/module.go and x/e2ee/types/keys.go enhance the E2EE module's functionality.

Changes

Files	Changes
proto/e2ee/query.proto, proto/e2ee/tx.proto	Introduced protocol buffer definitions for E2EE service with key querying methods and message types for key registration.
app/app.go	Added imports related to E2EE, modified key storage to include E2EE keys, declared E2EEKeeper in App struct, and initialized E2EEKeeper in the New function.
x/e2ee/module.go	Introduced functionality for managing the E2EE module in a blockchain application.
x/e2ee/types/codec.go, x/e2ee/types/keys.go	Added functionality for Amino JSON serialization and defined constants/functions for encryption keys in the types package.

Possibly related issues

• Issue: Problem: no e2e encrypted messaging support #1406
  • Reasoning: The changes in this PR align with the request for adding support for end-to-end encrypted messaging through key generation, storage, and encryption commands.

Poem

🐰✨✍️
Encryption keys in a dance, a tale to unfold,
Messages secure, in a world so bold.
Queries and transactions, in harmony they play,
Safeguarding secrets, night and day.
CodeRabbit whispers, in the language of the wise,
E2EE magic, a coder's prize. 🌟🔐
🐰✨

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[codecov]

Codecov Report

Attention: Patch coverage is 49.10714% with 57 lines in your changes are missing coverage. Please review.

Project coverage is 35.47%. Comparing base (a44402e) to head (42a012a).

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1407       +/-   ##
===========================================
+ Coverage   15.35%   35.47%   +20.12%     
===========================================
  Files          75      130       +55     
  Lines        4925     9570     +4645     
===========================================
+ Hits          756     3395     +2639     
- Misses       4094     5813     +1719     
- Partials       75      362      +287     

Files	Coverage Δ
x/e2ee/autocli.go	100.00% <100.00%> (ø)
x/e2ee/types/codec.go	100.00% <100.00%> (ø)
x/e2ee/types/genesis.go	100.00% <100.00%> (ø)
app/upgrades.go	18.18% <0.00%> (-0.87%)	⬇️
x/e2ee/types/keys.go	0.00% <0.00%> (ø)
x/e2ee/module.go	62.79% <62.79%> (ø)
x/e2ee/keeper/keeper.go	14.63% <14.63%> (ø)

... and 70 files with indirect coverage changes

[coderabbitai]

Actionable comments posted: 2

Out of diff range and nitpick comments (1)

x/e2ee/types/genesis.go (1)

11-11: Clarify the purpose of the empty Validate function.

Consider adding a comment explaining why this function returns nil. If future validations are planned, note that as well.

[mmsqe]

seems just miss a new query config for swagger