getEncryptedKeys method
Fetches encryption keys for atsign
from device keychain.
Implementation
Future<Map<String, String?>> getEncryptedKeys(String atsign) async {
Map<String, String?> result =
await KeyChainManager.getInstance().getEncryptedKeys(atsign);
result[atsign] = await getAESKey(atsign);
return result;
}