Why Do We Say “It is probably prime”? Surely it is, or it isn’t!
Published in
4 min readOct 24, 2021
Prime numbers are at the core of your online security. Without them, an intruder could listen to your secret communications, or pretend to be a server that you connect to. They are at the core of our key exchange (with ECDH) and in digital signatures (such as ECDSA). And so we might generate a random prime number, such as for our key exchange method. But the result can tell if we…
