How does the XOR operation function in the encryption and decryption processes of a stream cipher?
Wednesday, 12 June 2024
by EITCA Academy
The XOR (exclusive OR) operation is a fundamental component in the encryption and decryption processes of stream ciphers, which are a class of symmetric key ciphers. Stream ciphers encrypt plaintext digits one at a time with a corresponding digit from a keystream generator. The XOR operation is particularly well-suited for this purpose due to its
How does the one-time pad encryption scheme provide provable security in communication?
Friday, 25 August 2023
by EITCA Academy
The one-time pad encryption scheme is a cryptographic method that provides provable security in communication. It achieves this by utilizing a key that is as long as the plaintext message and is completely random. In this answer, we will explore the concept of the one-time pad and explain how it ensures secure communication. The one-time