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TA

Abbreviations / Acronyms / Synonyms:

Template Attack
Traffic Analysis
Transmitter Address
Trust Agent
Trust Anchor
Trusted Agent
Trusted Application

Definitions:

  A public or symmetric key that is trusted because it is directly built into hardware or software, or securely provisioned via out-of-band means, rather than because it is vouched for by another trusted entity (e.g. in a public key certificate). A trust anchor may have name or policy constraints limiting its scope.
Sources:
NIST SP 800-63-3 under Trust Anchor

  A configured DNSKEY RR or DS RR hash of a DNSKEY RR. A validating DNSSEC-aware resolver uses this public key or hash as a starting point for building the authentication chain to a signed DNS response. In general, a validating resolver will need to obtain the initial values of its trust anchors via some secure or trusted means outside the DNS protocol. The presence of a trust anchor also implies that the resolver should expect the zone to which the trust anchor points to be signed. This is sometimes referred to as a “secure entry point.”
Sources:
NIST SP 800-81-2 under Trust Anchor

  The analysis of patterns in communications for the purpose of gaining intelligence about a system or its users. Traffic analysis does not require examination of the content of the communications, which may or may not be decipherable. For example, an adversary may be able to detect a signal from a reader that could enable it to infer that a particular activity is occurring (e.g., a shipment has arrived, someone is entering a facility) without necessarily learning an identifier or associated data.
Sources:
NIST SP 800-98 under Traffic Analysis