Suppose Alice sends messages to Bob by encrypting the messages with Bob's public key.
Eve knows that the data is encrypted using RSA, but does not know the public key. Can Eve figure out the public key just by observing the encrypted messages?
And if so, approximately how much data would it take for Eve to discover the public key?
If we know that the public key has only 16bits.
It's have over 6500 primes smaller than 2^16. How long we can find the public key ?? speed : 1.000.000 cal/s.