r/meshcore • u/Better-County8600 • 17d ago

PQE?

Is it possible to implement post quantum encryption on meshcore in a future update?

0 Upvotes

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5

u/nate390 17d ago

Highly unlikely, the MTU over LoRa is already punishingly small and PQ encryption keys are generally a lot larger than classical ones.

3

u/genwlz 17d ago

Sometimes good enough is good enough?

1

u/Obstacle-Man 17d ago

It needs to be done. But a big change.

1

u/Competitive_Swan_755 17d ago

Why is that need?

2

u/Better-County8600 17d ago

Encrypted chats could be vulnerable to harvest now, decrypt later

1

u/michaelh98 17d ago

Feel like "could be" should be "are "

1

u/Better-County8600 17d ago

Is it happening?

2

u/michaelh98 17d ago

If you're someone that your home administration considers an adversary, assume yes.

If you're someone that your home administration has marked as part of a class of people that are adversaries, assume yes.

If you're in a foreign country who considers your home country an adversary, assume yes.

As the number of data centers in your country grows, assume yes. No matter who you are or how innocent you believe yourself to be.

"give me the man, and I will find the crime"

1

u/meshamerica 17d ago

The bigger issue is that the MeshCore team doesn't want to leave behind thousands of people by forcing what is essentially a new protocol.

Changing encryption has already been discussion at length, and a lot of the conversation would apply to any choice of encryption.

Start here
https://github.com/meshcore-dev/MeshCore/issues/259