If you want to secure a message, use a(n):

A. Cryptology source

B. Encryption key

C. Encryption software package

D. Cryptosystem

Answer: Option D

Solution(By Examveda Team)

A cryptosystem is a structure or scheme consisting of a set of algorithms that converts plaintext to ciphertext to encode or decode messages securely. To help keep data secure, cryptosystems incorporate the algorithms for key generation, encryption and decryption techniques.