link encryption


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link encryption

[′liŋk en′krip·shən]
(communications)
The application of on-line crypto-operation to the individual links of relay systems so that all messages passing over the link are encrypted in their entirety.

link encryption

The decryption and re-encryption of confidential data at various router or switching junctions throughout the transmission path. For example, a transmission from Boston to Phoenix is encrypted in Boston, decrypted in Atlanta, re-encrypted (perhaps with a different algorithm) in Atlanta and decrypted in Phoenix. Link encryption creates a greater risk of a security breach. Contrast with end-to-end encryption.
References in periodicals archive ?
Link encryption usually requires more ciphering devices to protect the system than does end-to-end encryption--often twice as many.
It was also designed with enough processing capacity to support future cryptographic and networking features, including the next-generation, evolving HAIPE and Link Encryption Family (LEF) interoperability standards, the company said.