program1.h - Header file for global variables, class objects, and functions ... and the resulting block is 64 bits. This is a symetric key system so the encryption and decryption processes are the ...

Symmetric key encryption, also known as secret key encryption, is a type of encryption where the same key is used to encrypt ... works by applying a mathematical function, called an algorithm ...

Having only one key to serve both the encryption and decryption functions ... block ciphers. Block ciphers encrypt data in chunks (blocks), whereas stream ciphers encrypt data one bit at a time. So, ...

An adversary can exploit this deterministic nature of symmetric block encryption algorithms by performing linear and differential cryptanalysis. Various block cipher modes like CBC are used in ...