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'''Communications security (COMSEC)''' encompasses the policies, procedures and technologies used to p

...r authentication, with optional features, which provide certain aspects of communications security#sequential integrity|sequential integrity.<ref name=RFC4302>{{citation ...ty Payload (ESP) protocol offers the same set of services, and also offers communications security#content confidentiality|content confidentiality.<ref name=RFC4303>{{citatio

{{r|Communications Security Establishment}}

{{r|Communications security}}

...em (SINCGARS)''' is the name of a family of military radios and associated communications security equipment, principally used for ground-based, short-range communications fo

{{r|Communications Security Establishment}}

{{r|Communications Security Establishment}}

In computer and communications security dependent on [[public key infrastructure]] (PKI), a '''certification author

{{r|Communications Security Establishment}} {{r|Government Communications Security Bureau}}

Most U.S. government-approved, in [[communications security]] (COMSEC) equipment has designations in the form '''TSEC/KG-99''', in wh | Removable communications security component

===Communications Security Establishment (CSE)=== {{main|Communications Security Establishment}}

'''HAVE QUICK II''' is the name of a family of military radios and associated communications security equipment, principally used for aircraft, shipboard, satellite, and other a

...bution system]], be [[encryption|encrypted]] into "BLACK" information by a communications security system, or both.

...o-ground and air-to-air is ITU Frequency Bands|ultra-high frequency (UHF). Communications security devices now may be separate; reduction in the number of separate radio and

Computer and communications security mechanisms that depend on [[public key cryptography]] require confidence i

...field use and designed to incorporate cryptography|encryption devices for communications security. These toll switches, in turn, could connect to the "international long dis

...nt Communications Headquarters]], with functions similar to the Canadian [[Communications Security Establishment]] or the U.S. [[National Security Agency]].

More a part of communications security than true intelligence collection, SIGINT units still may have the responsi :# '''Communications security (COMSEC):''' "Friendly or enemy COMSEC breaches. Linkage of codes or codewo

...d probably make the Japanese, who were generally overconfident about their communications security,<ref name=Kahn1996 /> believe their cryptosystem was secure. No operations