Trusted Third Party (TTP)

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Abbreviation(s) and Synonym(s):

TTP

NIST SP 800-56B Rev. 2

Definition(s):

An entity other than the owner and verifier that is trusted by the owner, the verifier or both to provide certain services.
Source(s):
NIST SP 800-89

A third party, such as a CA, that is trusted by its clients to perform certain services. (By contrast, the two participants in a key-establishment transaction are considered to be the first and second parties.)
Source(s):
NIST SP 800-56B Rev. 2 under Trusted third party

Glossary Comments

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See NISTIR 7298 Rev. 3 for additional details.