Issue

Several features in the SDK streaming implementation (sdk_streaming.py) are currently unimplemented, marked with TODO comments:

• Key Derivation (Security/Encryption)
• DAGRoot Implementation (Data Structure)
• Stream Commit (Data Persistence)
• Chunk Download Creation (File Downloads)

Impact

These missing features are blocking core SDK functionality:

• Compromised security due to missing key derivation
• Unreliable data structure handling without DAGRoot
• Data persistence issues without stream commit
• Broken file download functionality

Current State

# Current implementation shows TODOs:
# TODO: implement key derivation
# TODO: Implement DAGRoot
# TODO: Implement stream commit
# TODO: Implement chunk download creation

Required Action

Immediate implementation needed with:

• Proper testing
• Security validation
• Documentation
• Integration testing