Fundamentals of InfoSecintermediate
Match each key or file state with its role in the encryption activity.
Answer
Private key - Kept by its owner and used to decrypt the file, Public key - Extracted and used to encrypt the file for its owner, Ciphertext - Encrypted file contents, Plaintext - Readable file contents before encryption
Explanation
### The pairs
| Item | Matches | Why |
|---|---|---|
| Private key | Kept by its owner and used to decrypt the file | The private key corresponds to the public key used for encryption. |
| Public key | Extracted and used to encrypt the file for its owner | Senders can use this key without learning the owner's private key. |
| Ciphertext | Encrypted file contents | Ciphertext is the transformed output of encryption. |
| Plaintext | Readable file contents before encryption | Plaintext is the input that encryption transforms. |
### Remember
Know the key roles and file states separately.
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