communications security

Communications security (COMSEC): Measures and controls taken to deny unauthorized persons information derived from telecommunications and ensure the authenticity of such telecommunications.  Communications security includes cryptosecurity, transmission security, emission security, traffic-flow security. and physical security of COMSEC equipment.
See more at Wikipedia.org...

Measures and controls taken to deny unauthorized persons information derived from telecommunications and ensure the authenticity of such telecommunications. Note: Communications security includes cryptosecurity, transmission security, emission security, and physical security of COMSEC material. [NIS] (188 )(a) cryptosecurity: [The] component of communications security that results from the provision of technically sound cryptosystems and their proper use. [NIS](b) emission security: Protection resulting from all measures taken to deny unauthorized persons information of value which might be derived from intercept and analysis of compromising emanations from crypto-equipment, AIS, and telecommunications systems. [NIS](c) physical security: The component of communications security that results from all physical measures necessary to safeguard classified equipment, material, and documents from access thereto or observation thereof by unauthorized persons. [JP1](d) transmission security: [The] component of communications security that results from the application of measures designed to protect transmissions from interception and exploitation by means other than cryptanalysis. [NIS]

The protection resulting from the application of cryptographic, transmission, emission and physical security measures to deny unauthorized persons any information of value which might be derived from the study of all communications means. 16/07/96

Protection obtenue en mettant en oeuvre des mesures de sécurité dans les domaines de la cryptographie, de la transmission, de l'émission et de la sécurité physique, afin d'empêcher toute personne non habilitée d'accéder à des informations sensibles pouvant être déduites de l'étude de tout moyen de télécommunication. 16/7/96