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    Glossary
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Secure channel

Definitions:

  A MACsec security relationship used to provide security guarantees for frames transmitted from one member of a Connectivity Association (CA) to the others. An SC is supported by a sequence of Secure Associations (SAs) thus allowing the periodic use of fresh keys without terminating the relationship.
Sources:
CNSSI 4009-2022 under secure channel

  A path for transferring data between two entities or components that ensures confidentiality, integrity and replay protection, as well as mutual authentication between the entities or components. The secure channel may be provided using approved cryptographic, physical or procedural methods, or a combination thereof. Sometimes called a trusted channel.
Sources:
NIST SP 800-90A Rev. 1 under Secure Channel

  A path for transferring data between two entities or components that ensures confidentiality, integrity, and replay protection as well as mutual authentication between the entities or components. The secure channel may be provided using cryptographic, physical, or procedural methods or a combination thereof.
Sources:
NIST SP 800-133 Rev. 2