Cryptography, Security, Math, Encryption, Data Security.
message C = 113 using the private key (391, 141), we apply the decryption function D(C) = C^d mod n = 113¹⁴¹ mod 391 = 72736576, which recovers the original message “HELLO”. Why and How the Math works to ensure security? Why prime numbers are used (17 and 23 in the example above) and why are they