Decoding Mars 2020

#1

Post by followben » Wed, Feb 17, 2021, 10:20 PM UTC

Decoding Mars 2020
destevez.net

Re: Decoding Mars 2020

#2

Post by rektide » Fri, Feb 19, 2021, 6:10 AM UTC

humankind is just so much awesomer when we work to divulge & share the ways of things

Re: Decoding Mars 2020

#3

Post by gapipro » Fri, Feb 19, 2021, 11:56 AM UTC

Anyone knows what kind of encryption they use on top of this?

Re: Decoding Mars 2020

#4

Post by technimad » Fri, Feb 19, 2021, 3:15 PM UTC

gapipro wrote: post #3

Anyone knows what kind of encryption they use on top of this?

Probably none. Why should telemetry data sent from Mars be encrypted? Encryption makes the system more complex and requires more computations and power on Mars.

Re: Decoding Mars 2020

#5

Post by gapipro » Fri, Feb 19, 2021, 3:36 PM UTC

technimad wrote: post #4

gapipro wrote: post #3

Anyone knows what kind of encryption they use on top of this?

Probably none. Why should telemetry data sent from Mars be encrypted? Encryption makes the system more complex and requires more computations and power on Mars.

Ok for telemetry data I agree, but what about remote control and other communication channels with rover?

Re: Decoding Mars 2020

#6

Post by augusto-moura » Fri, Feb 19, 2021, 4:06 PM UTC

gapipro wrote: post #3

Anyone knows what kind of encryption they use on top of this?

Well, I don't think there's a confirmed source, because of obvious reasons. Probably the same used on earth by us common folk. Maybe AES because of the deep government roots

Re: Decoding Mars 2020

#7

Post by augusto-moura » Fri, Feb 19, 2021, 4:12 PM UTC

technimad wrote: post #4

gapipro wrote: post #3

Anyone knows what kind of encryption they use on top of this?

Probably none. Why should telemetry data sent from Mars be encrypted? Encryption makes the system more complex and requires more computations and power on Mars.

I'm pretty sure telemetry is encrypted. Telemetry is not only position or velocity, there's a bunch of other information from sensors that should be handled with secrecy. Also gives more flexibility with announcements, given that the mission can fail anytime it's bad if some random person leaks that the rover stopped working suddenly or had a RAD

Re: Decoding Mars 2020

#8

Post by yellowapple » Sat, Feb 20, 2021, 7:06 AM UTC

gapipro wrote: post #5

technimad wrote: post #4

Earlier quoted context omitted.

Probably none. Why should telemetry data sent from Mars be encrypted? Encryption makes the system more complex and requires more computations and power on Mars.

Ok for telemetry data I agree, but what about remote control and other communication channels with rover?

I would expect cryptographic signing to be more relevant for remote control than trying to obfuscate the remote control data entirely.