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Communications security is the discipline of preventing unauthorized interceptors from accessing telecommunications [1] in an intelligible form, while still delivering content to the intended recipients.
Security can be broadly categorized under the following headings, with examples: Hiding the content or nature of a communication Code – a rule to convert a piece of information (for example, a letter, word, phrase, or gesture) into another form or representation (one sign into another sign), not necessarily of the same type.
Transmission security (TRANSEC) is 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. Goals of transmission security include:
Security service is a service, provided by a layer of communicating open systems, which ensures adequate security of the systems or of data transfers [1] as defined by ITU-T X.800 Recommendation. X.800 and ISO 7498-2 (Information processing systems – Open systems interconnection – Basic Reference Model – Part 2: Security architecture) [ 2 ...
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Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network, such as the Internet.The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible.
NSA has to deal with many factors in ensuring the security of communication and information (COMSEC and INFOSEC in NSA jargon): Confidentiality: making sure messages cannot be read by unauthorized parties. Authentication: the validation of the source of transmitted messages. Nonrepudiation: making sure that transmitted messages cannot be forged.
The Electronic Key Management System (EKMS) is a United States National Security Agency led program responsible for Communications Security key management, accounting, and distribution. Specifically, EKMS generates and distributes electronic key material for all NSA encryption systems whose keys are loaded using standard fill devices, and ...