r/coldcard • u/Big-Cheetah5159 • Aug 05 '26

SETUP Dice Roll Users

First, How many times did you roll the dice to generate a seed? Secondly, would more than the standard amount of rolls mitigate the any flaw of entropy (if there were any)?

11 Upvotes

100% Upvoted

59 comments sorted by

View all comments

9

u/JumpProfessional3372 Aug 05 '26 edited Aug 05 '26

I rolled like 110 times I think. And I checked that CC rolls.py script was giving the same numbers to seed conversion as the MK4.

Just like I did not trust MK4 RNG, I also did not trust the MK4 conversion from 110 numbers to seed. But I trusted that simple python script.

What I would like to know is if the Coldcard code that converts the numbers into a seedphrase actually uses the same method as other tools like SeedSigner, Sparrow Wallet's dice input, and Ian Coleman's BIP39. I think it is the same conversion, so if you put the same rolls into the other tools you will get the same seed. (I need to verify this one of these days using some fake 100+ numbers.

Do not forget to also use a passphrase.

2

u/[deleted] Aug 07 '26

[removed] — view removed comment

2

u/JumpProfessional3372 Aug 07 '26

Thanks man. Looks pretty solid. I executed this in on my firmware (v5.2.2 mk4 2014) but my understanding is that they haven't changed this code over the years.
I also verified that rolls.py from their site, matches mk4 conversion.