Do you know how would I record mouse movements and/or how could I could use that as an entropy source? I know bitaddress uses this method but then at the same time idk if it's using JavaScript cryptography, which isn't secure enough for a Bitcoin private key IMO.
I don't know how bitaddress and random library works exactly, but the short version is :
1. User move their mouse
2. You record mouse pointer position every time position change or/and every few milisecond
3. Stop when you get enough list of mouse pointer position
4. Feed the list into function, such as Linear congruential generator or Linear-feedback shift register (both of them are unsecure, but shouldn't be too hard to understand)
You could write your own function, but most likely it will be very insecure.
You could simply use /dev/random of a unix system.
The linux kernel uses mouse movements, inter-keyboard timings, CPU interrupts and other non-deterministic events to gather entropy.
That's definitely random enough to generate a private key.
Awesome! I'll test that out. Man I wish I asked a few years ago. Would have saved me approx 749283700 dice rolls. The linux kernel uses mouse movements, inter-keyboard timings, CPU interrupts and other non-deterministic events to gather entropy.
That's definitely random enough to generate a private key.
. Thanks!/dev/urandom also exist & commonly used rather than /dev/random, check https://unix.stackexchange.com/q/324209 for more info
