General telecom

General telecom

Terms relating to telecommunication or communication through technological means.

Industry: Telecommunications

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General telecom

Data key

Telecommunications; General telecom

A cryptographic key used for authentication or for encryption and decryption.

Digital signature

Telecommunications; General telecom

A cryptographic modification of data that provides: (a) origin authentication, (b) data integrity , and (c) signer nonrepudiation (when associated with a data unit and accompanied by the ...

On-line cryptosystem

Telecommunications; General telecom

A cryptosystem in which encryption and decryption are performed in association with the transmitting and receiving functions.

Circuit-switched data transmission service

Telecommunications; General telecom

A data transmission service requiring the establishment of a circuit-switched connexion before data can be transferred from source data terminal equipment (DTE) to a sink DTE. Note: A ...

A destructive technique for determining certain optical fibre transmission characteristics, such as attenuation and bandwidth, by (a) performing the desired measurements on a long length of the fibre ...

System electronic information security policy (SEI

Telecommunications; General telecom

A detailed statement of the technical aspects of a System Security Policy. Note: A System Electronic Information Security Policy provides the baseline for evaluation.

Active sensor

Telecommunications; General telecom

A detection device that requires input energy from a source other than that which is being sensed. Note: An example of an active sensor is a photoconductive cell. 2. In surveillance, a detection ...