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Identity Provider (IdP)

Abbreviation(s) and Synonym(s):

Credential Service Provider
IdP
IP

Definition(s):

  A trusted entity that issues or registers subscriber authenticators and issues electronic credentials to subscribers. A CSP may be an independent third party or issue credentials for its own use.
Source(s):
NIST SP 1800-17c under Credential Service Provider

  The party that manages the subscriber’s primary authentication credentials and issues assertions derived from those credentials. This is commonly the CSP as discussed within this document suite.
Source(s):
NIST SP 800-63-3

  See Credential Service Provider.
Source(s):
NISTIR 8149