Across
- 4. encrypted data that is the result of putting a plaintext message through an encryption algorithm
- 5. another name for a hacker who intercepts data being transmitted on a wired or wireless network
- 6. a message sent to the receiver indicating that data has been received correctly (used in the ARQ error detection method)
- 9. data that can be sent on one direction only
- 10. the actual data being carried in a data packet
Down
- 1. a horizontol and vertical parity check on a block of data being transmitted
- 2. a type of encryption key that is known to all users
- 3. a device that enables data packets to be moved between different networks, for example to join LAN to a WAN
- 7. the process of making data meaningless using encryption keys; without the correct decryption key the data cannot be decoded (unscrambled)
- 8. data that arrives at the destination with the bits no longer synchronised