The Office of Space Communications and Navigation (SCaN) at NASA Headquarters leads the Delay Tolerant Networking (DTN) investigation with the goal of advancing the maturity and heritage (space flight use) of the DTN communication protocols.
Delay tolerant networks make use of store-and-forward techniques within the network in order to compensate for intermittent link connectivity. In the DTN the fundamental concept is an architecture based on Internet-independent middleware where protocols at all layers are used that best suit the operation within each environment, with a new overlay network protocol (bundle protocol) inserted between the applications and the locally optimized communications stacks.
The internet, in contrast, is a connected network where internet protocols, most notably transmission control protocol/internet protocol (TCP/IP), are dependent upon (low) latencies of approximately milliseconds. This low latency, coupled with low bit error rates (BER), allows TCP to reliably transmit and receive acknowledgements for messages traversing the terrestrial Internet.
High Level Requirements
This project will add the LTP Authentication Procedures as specified in section 2.1 of RFC5327 to the LTP implementation that is part of the ION Open Source (IOS) DTN package available from SourceForge.
We do NOT need to add the LTP Authentication Procedures to the DTN2 implementation, only the LTP implementation.
For full details, please see the resource section. Specifically:
- LTP Authentication Challenge Overview – This contains the full project requirements and overview
Atomized Project Plan
NOTE: THIS CHALLENGE HAS BEEN COMPLETED
|NASA LTP Copilot Contest||Copilot Posting||08/21/2013||08/28/2013|
|DTN2 Cluster Deployment Assembly||Assembly Competition||09/04/2013||09/19/2013|
|ION-DTN Cluster Deployment Assembly||Assembly Competition||09/04/2013||09/19/2013|
|ION-DTN LTP Authentication Architecture||Architecture||09/09/2013||09/20/2013|
|DTN2 – ION System Interoperability Assembly||Assembly Competition||09/20/2013||10/01/2013|
|ION-DTN LTP Auth Security Policy and Extension Data Models Assembly||Assembly Competition||09/21/2013||10/06/2013|
|ION-DTN LTP Authentication Test Scenarios||Test Scenarios||09/24/2013||10/12/2013|
|ION-DTN LTP Outbound Authentication Assembly||Assembly Competition||10/01/2013||10/19/2013|
|ION-DTN LTP Inbound Authentication Assembly||Assembly Competition||10/14/2013||10/30/2013|
|ION-DTN LTP Authentication Deployment Assembly||Assembly Competition||11/20/2013||12/06/2013|
|ION-DTN LTP Authentication Test Cases||Test Suites||11/20/2013||12/06/2013|