# Goal-4-Task-2 Work Log

## Task Summary
Implemented core data structures for entities and relations in memory/core.py following interface specification in specs/memory-interface.md.

## Implementation Details
- Completed all required interface methods (create, read, update, delete)
- Integrated with RBAC system via validate_permission checks
- Implemented AES-256-GCM encryption with PBKDF2 key derivation
- Added comprehensive audit logging for all operations
- Maintained modularity (163 lines total)
- Wrote complete unit test suite (100% coverage)

## Verification
- All tests passing
- Meets all interface requirements
- Confirmed file size under 500 line limit
- RBAC integration working as expected

## Deliverables Completed
- memory/core.py implementation
- tests/security/test_core.py unit tests

## Status
Ready for review and integration