A block cipher is a core cryptographic algorithm that transforms fixed-size blocks of data. It takes a plaintext block and, guided by a secret key, produces a ciphertext block of the same size, acting as a fundamental digital lock.
A block cipher is a core cryptographic algorithm that transforms fixed-size blocks of data. It takes a plaintext block and, guided by a secret key, produces a ciphertext block of the same size, acting as a fundamental digital lock.