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Encyclopedia > COMSEC

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 material.

  • cryptosecurity: The component of communications security that results from the provision of technically sound cryptosystems and their proper use. This includes insuring message confidentiality and authenticity.
  • emission security (EMSEC): 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, automated information systems (computers), and telecommunications systems.
  • 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.
  • traffic-flow security: Measures that conceal the presence and properties of valid messages on a network. It includes the protection resulting from features, inherent in some cryptoequipment, that conceal the presence of valid messages on a communications circuit, normally achieved by causing the circuit to appear busy at all times.
  • transmission security (TRANSEC): 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 (e.g. frequency hopping and spread spectrum).

Sources:

From Federal Standard 1037C, MIL-STD-188, National Information Systems Security Glossary and the Department of Defense Dictionary of Military and Associated Terms


See also

Related Links


COMSEC/SIGINT News Group - Discussion Forum (http://groups-beta.google.com/group/sigint)


  Results from FactBites:
 
NHB 1600.6 : NASA COMMUNICATIONS SECURITY (COMSEC) MANUAL (13678 words)
The individual user or holder of COMSEC material is personally responsible for controlling and safeguarding COMSEC material while it is entrusted to his or her care, and is not authorized to lend the material to another individual without a new hand receipt issued from the COMSEC Custodian.
Individuals appointed as Alternate COMSEC Custodians are responsible for assisting the COMSEC Custodian in performing his or her duties and for providing continuity of operations in the absence of the COMSEC Custodian.
In those cases where material was transferred from the account or destroyed, the COMSEC Custodian should verify such actions by comparing the transfer and destruction reports with his or her Register File to assure the accuracy of the actions affecting the material for which he or she is held accountable.
  More results at FactBites »

 

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