Re: PAPER WALLETS address and private key are created or were they already created?
..... So my question is if these addresses and passwords are already created before, because if you create them new, how can you create it without an Internet connection?
Those are just numbers that don't depend on Internet conection. They exist as mathematical symbols to label private-public-key pairs, just like 1,2,3 and so on to label apples on your table
......And if they are accounts created previously or not, another question is how do I know that nobody is going to receive my same private key due to coincidences of life? or that I receive the private key of some other person?
I hope you understand my questions and thanks in advance.
.....If those numbers are picked by ppl randomly then the 99.8% chance that private keys of two people are the same (in the sense they open the same address) is approximately 1/(square root of numbers of possible private keys) i.e 2-128 (2-130 to be more precise), regardless of where, when and at what time all people pick them up. This results from "birthday paradox" in theory of probability.
The problem is all random number generators are in fact pseudo random.