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Appendix D Glossary of Terms

NIST PIV and digital identity SP 800-156
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Title

Glossary of Terms

Control

Biometric The stored electronic information pertaining to a biometric. This information can be in terms of compressed pixels or in terms of some characteristic (e.g., patterns).

Cardholder An individual possessing an issued PIV Card.

Chain-of-trust The chain-of-trust is a sequence of related enrollment data sets that is created and maintained by PIV Card issuers

FASC-N Federal Agency Smart Credential Number (FASC-N): As required by [ FIPS201 ], one of the primary identifiers on the PIV Card. The FASC-N is a fixed length (25-byte) data object, specified in [ SP800- 73-4 ], and included in several data objects on a PIV Card.

Issuer An agency or service provider that issues PIV credentials in accordance with [ FIPS201 ] and NIST [ SP 800-79-2 ].

Off-Card A cardholder’s biometric reference data stored on the PIV Card that is matched against the cardholder’s life-scan biometrics Off-Card during authentication.

On-Card A cardholder’s biometric reference data stored on the PIV Card that is matched against the cardholder’s life-scan biometrics On-Card during authentication.