Link Encryption

Link encryption encrypts all of the data along a communications path (e.g., a satellite link, telephone circuit, or T1 line). Since link encryption also encrypts routing data, communications nodes need to decrypt the data to continue routing.

The application of on-line crypto-operation to a link of a communications system so that all information passing over the link is encrypted in its entirety. [JP1-02] 2. Encryption of information between nodes of a communications system. [INFOSEC-99]