Question

1. a(n) ____ is a set of characters that the originator of the data uses to encrypt the text and the recipient of the data uses to decrypt the text. (230)

a. cipher
c. public key
b. plaintext
d. encryption key

Explanation:

A cipher is a set of rules for converting plaintext into ciphertext (encrypting) and vice - versa (decrypting). Plaintext is the original unencrypted text. A public key is part of a public - key cryptosystem and is different from the description given. An encryption key is used only for encryption. The description matches the definition of a cipher.

Answer:

a. cipher