Blockchain tutorial 2: Random numbers Video Lecture | Blockchain Tutorial: A Fundamental Guide - Cryptocurrency

in this video I will explain what random
numbers are random numbers are normal
which are randomly generated like
throwing a dice or flipping a coin
however a computer cannot generate two
random numbers
it creates so-called pure random numbers
using absurd a random number generator a
serial random number generator uses a
seed as input and the mathematical
function which generates a random number
the seed is a relative small number and
the generated random number is usually a
large number in the blocking world
random numbers are for example used to
generate public and private keys in
coming videos I will explain more about
public and private keys how does appear
the random number generator works in the
middle you see the plural random number
algorithm which uses the seed as its
input and it generates a large random
number the seed is a relative small
value and it is taken from an
unpredictable short for example it can
be a mouse pointer location on the
screen it can be keystrokes thus it can
be taken from different sources an
interesting question is how does observe
your resin numbered algorithm generate a
large random number using a small seed
value you can use for example a middle
squares algorithm you start with a seed
value of 135 and multiply the seed by
itself as you can see over here 135
times 135 and this is the result you
take a middle part and it will be part
of the random number next take this
result can multiply by itself so here's
the result you multiply by itself this
is your result again you take the middle
part you place it behind the previous
random number again you take this result
and multiply by itself as you can see
over here this is your salt again you
take the middle part and append it to
the previous random number you repeat
the steps until the generated random
number has your desired number of digits
please note this is just a demonstration
how to generate a large random number
using a small seed value the middle
squares algorithm is
a simple algorithm and it's not used in
the blockchain world other much more
complex clear the random number
generator algorithms are being used and
the seed is much larger here's a
software program which generates random
numbers as you can see over here it
generates this random number it's a
hexadecimal number which consists of 64
symbols in total if I run began it just
generates random numbers