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Encyclopedia > 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 material. Information is a term with many meanings depending on context, but is as a rule closely related to such concepts as meaning, knowledge, instruction, communication, representation, and mental stimulus. ... Telecommunication is the extension of communication over a distance. ... The term communications is used in a number of disciplines: Communications, also known as communication studies is the academic discipline which studies communication. ... This page covers security in the sense of protection from hostile action. ...

  • 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).

In general, a things components are its parts; the things that compose it. ... See also: Topics in cryptography The security of all practical encryption schemes remains unproven, both for symmetric and asymmetric schemes. ... TEMPEST is a U.S. government code word for a set of standards for limiting electric or electromagnetic radiation emanations from electronic equipment such as microchips, monitors, or printers. ... Information is a term with many meanings depending on context, but is as a rule closely related to such concepts as meaning, knowledge, instruction, communication, representation, and mental stimulus. ... In telecommunication, the term intercept has the following meanings: 1. ... The tower of a personal computer (specifically a Power Mac G5). ... In general, a things components are its parts; the things that compose it. ... The term communications is used in a number of disciplines: Communications, also known as communication studies is the academic discipline which studies communication. ... Classified information is secret information to which access is restricted by law or corporate rules to a particular hierarchical class of people. ... Look up Access in Wiktionary, the free dictionary This is a list of articles related to the notion of access: information transfer, computer storage, telecommunication and computer networks: ACCESS.bus access charge access method access time broadband Internet access broadband wireless access code division multiple access Common User Access dial... Traffic-flow security is the use of measures that conceal the presence and properties of valid messages on a network to prevent traffic analysis. ... transmission security (TRANSEC): is the component of communications security (COMSEC) that results from the application of measures designed to protect transmissions from interception and exploitation by means other than cryptanalysis. ... For the Game Boy Advance cheat device, see CodeBreaker (Game Boy) Cryptanalysis (from the Greek kryptós, hidden, and analýein, to loosen or to untie) is the study of methods for obtaining the meaning of encrypted information without access to the secret information which is normally required to do so. ... Frequency-hopping spread spectrum (FHSS) is a spread-spectrum method of transmitting signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. ... Spread-spectrum telecommunications is a technique in which a signal is transmitted in a bandwidth considerably greater than the frequency content of the original information. ...

Sources:

From Federal Standard 1037C, MIL-STD-188, National Information Systems Security Glossary and the Department of Defense Dictionary of Military and Associated Terms Federal Standard 1037C entitled Telecommunications: Glossary of Telecommunication Terms is a U.S. Federal Standard, issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended. ... MIL-STD-188 is a series of U.S. military standards relating to telecommunications. ... The National Information Systems Security Glossary, published by the National Security Telecommunications and Information Systems Security Committee of the United States federal government, is an unclassified glossary of Information Systems Security (INFOSEC) terms intended to provide a common vocabulary for discussing INFOSEC. External links Online copy in Adobe Acrobat format... The Department of Defense Dictionary of Military and Associated Terms is a compedium of terminology used by the United States Department of Defense (DOD). ...


See also

See also: Topics in cryptography The security of all practical encryption schemes remains unproven, both for symmetric and asymmetric schemes. ... Traffic analysis is the process of intercepting and examining messages in order to deduce information from patterns in communication. ... The National Security Agency took over responsibility for all U.S. Government encryption systems when it was formed in 1952. ... In cryptography, a Type 1 product is a device or system certified by the National Security Agency (NSA) for use in cryptographically securing classified U.S. Government information. ... Operations security (OPSEC) is an analytic process used to deny an adversary information - generally unclassified - concerning friendly intentions and capabilities by identifying, controlling, and protecting indicators associated with planning processes or operations. ... Information security deals with several different trust aspects of information. ... Information warfare is a new kind of warfare where information and attacks on information and its system are used as a tool of warfare. ...

Related Links


COMSEC/SIGINT News Group - Discussion Forum


  Results from FactBites:
 
Secure Shell - Wikipedia, the free encyclopedia (1497 words)
In computing, Secure Shell or SSH is both a computer program and an associated network protocol designed for logging into and executing commands on a networked computer.
SSH Communications Security subsequently relicensed SSH to F-Secure (formerly known as Data Fellows).
SSH Secure Communications has a USA subsidiary in Palo Alto, California.
Press Release (882 words)
While secure channel protocols such as SSL encrypt data passing along the network between a client system and a server, Secure Courier delivers the additional security of keeping the financial data encrypted -- or in a "secure digital envelope" -- when it arrives at a merchant's server or at other intermediate points on the net.
A reference implementation of Secure Courier is scheduled to be available before the end of the year, and will be free for non-commercial use and available for a nominal licensing fee by companies who want to use it in commercial products.
Secure Courier is fully compatible with SSL, an open security protocol that incorporates RSA Data Security technology for securing data communicationsacross networks.
  More results at FactBites »


 
 

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