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Computer Security Resource Center

Computer Security Resource Center

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Identity Service Provider (ISP)

Abbreviation(s) and Synonym(s):

Credential Service Provider

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

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