Random · LESSON 3
Guess the next number (CSPRNG)
CSPRNG is crypto-grade random, built so nobody can ever guess the next number.
Term
What does CSPRNG stand for?
CCryptographically — like a cipherSSecure — safelyPPseudo — computer-madeRRandom — at randomNGNumber Generator — making numbers
Put together: "a machine that safely makes random numbers, like a cipher." Guessing the next number is as hard as breaking a code, so nobody can — that is why it is used when safe random is needed.
Quiz
Guess the last four digits of the next number
1Pick a random type first
2Numbers shown so far
3Guess the number that comes last
Look at the numbers shown so far, then enter the last four digits of the next number and press Check.
1
0
Tries
0
Hits
0%
Hit rate
?
Fake random shows a rule, so even the last four digits are easy to guess (not safe). With CSPRNG the last four digits have 10000 options, so you almost never guess. Real draw numbers are far longer, harder to guess than a lottery — that is why they are safe.