Computer Science for IGCSE & O level - Data Transmission (Section 13 - No. 5)
What does 'ciphertext' refer to in the context of data security?
The original message before encryption.
The encryption key.
The encrypted form of the message.
The decryption key.
Giải thích
Ciphertext represents the data after it has been encrypted and is, therefore, unreadable without the key.