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Showing posts with label Orbital. Show all posts
Showing posts with label Orbital. Show all posts

Want to Give Me Feedback During the Antares Launch Event? Call Me!

Because I'm going to be almost completely disconnected for about a week I've added to my blog the ability for you to leave a voicemail to give me feedback for during the Antares launch event.  I will check voicemail nightly and if possible include any feedback in the next day's events.

Thanks!

A Potential Look at the Security Technology Behind #Antares and #Cygnus Remote Control

The main purpose of the Antares rocket is to launch the Cygnus spacecraft - a remotely controlled cargo craft designed to deliver cargo to/from the International Space Station.

Some searching of patents by Orbital Sciences Corporation will reveal a patent from 2009 describing "A secondary payload interface for payload communications using a primary payload communications channel is provided."  This is essentially a space version of a radio repeater or WiFi range extender - and also provides for a redundant communications network to ensure that remote controlled spacecraft and satellites can remain in constant contact with ground control.

The patent discusses the potential for using communications satellites to relay commands remotely:

Although typically built with that single purpose in mind, these satellites may provide platforms for secondary payloads. For example, communications satellites can provide power, thermal control, and attitude control system (ACS) functions, as well as other services, to secondary payloads, such as, for example, earth-observing or weather-monitoring payloads. An auxiliary high rate communications system can be provided on the communications satellite to accommodate the secondary payload.

And good news! The patent is designed with security (encryption) in mind!
In some embodiments, the secondary payload interface may be designed such that control and telemetry interactions with the operators of the primary payload and/or the host satellite (which may be the same or different) are limited. For example, control interactions may be limited to power connections. As another example, telemetry interactions may be limited to discrete telemetry points that provide insight into the basic health of the secondary payload interface. As a result, the secondary payload may still be securely controlled by its operator without involvement by the operations center of the primary payload and/or the host satellite. This approach provides segregation of signals between an encrypted state and a non-encrypted state (e.g., a "red/black" interface) as required by some encryption systems. 

A second possibly related patent by Orbital describes "Emergency Communications Channel Systems and Methods for Satellite Command".  This patent can be accessed here.

This patent creates a backup system for satellite communications - ensuring availability of control if something goes wrong with traditional satellite communications.
To address [...] shortcomings within [remote satellite control], an Emergency Communications Channels (ECC) satellite command system according to one aspect of invention enables commanding of a satellite by remotely modulating telemetry data parameters indicative of the operation of one or more of the satellite's payloads by modulating signals sent directly to the payload from a ground station.  

The two above patents definitely show that Orbital understands the importance of implementing security and redundancy in space systems - and is actively implementing important security concepts in their spacecraft and launch systems.

I look forward to discussing this topic further with them when I visit NASA's Wallops Flight Facility in a few days.

How Rockets and Spacecraft Are Controlled Remotely

One of the topics I'm hoping to discuss with NASA and Orbital on my upcoming visit to the Antares rocket launch is how rockets and spacecraft are controlled remotely - and how this communication is secured from tampering by outside parties.

I'm not a rocket scientist - and since this really is rocket science - I figured I should start reading up on the topic.

I found on Archive.org a book from 1964 titled "Radio Control of Rockets".  The book was written by two Russian scientists and contributed to by NASA.  It discusses the theory behind remote control of a rocket.

If you're interested in learning more visit the Archive.org page and start reading the book!

If you could ask a question about Space Security what would it be?

I've been given an excellent opportunity to attend the NASA/Orbital Antares rocket test launch at Wallops Flight Facility in Wallops Island Virginia under NASA's social media credentials program.

I hope to learn and share fascinating information such as how remote flight telemetry and control of spacecraft is secured from tampering and interception.  However - since my blog wouldn't be the same without reader interaction - I'd like to take the time to find out what information security related questions my readers would like to have answered.

Please go to Facebook and answer the poll!  Feel free to add your own question if you don't see one listed you're interested in.  Please try to keep questions information security/computer security related.

I will gather questions until a few days before launch - then select the best ones from the poll.