Shared Keys should include the encryption key in the metadata #367
Description
Is your feature request related to a problem? Please describe.
Currently the Java SDK stores the encryption key for the sharedWith atSign as a separate key. This is incompatible with the Dart SDK as this expected the key to be in the metadata. And it also creates a potential failure window because of the ordering of the 2 updates.
Describe the solution you'd like
Update the Java SDK to match the dart behaviour, specifically...
- The encryption key used for shared keys between two atsigns only need to be stored once, for the atsign that owns / is shareing the key
- Shared keys need to include this key (encrypted with the sharedWith atsigns public encryption key) in the metadata of every key
- The lookup for shared keys (shared by another) should expect the metadata to include the encryption key and behave accordingly
Describe alternatives you've considered
NA
Additional context
No response