Cryptography, Security, Math, Encryption, Data Security.
message. For example, let’s say we want to encrypt the message M = “HELLO” using the public key (391, 5). First, we convert the message into a number m = 72736576 using ASCII encoding. Then, we apply the encryption function C(m) = m^e mod n = 72736576⁵ mod 391 = 113. To decrypt the encrypted