piv

Personal Identity Verification (PIV) is a government-wide standard in the United States for issuing and using identity credentials to allow federal employees and contractors to access facilities and information systems. Established by the FIPS 201 standard, PIV aims to provide a single, interoperable credential that supports strong authentication, identity assurance, and secure transactions across agencies. It is described and governed through a set of NIST standards that specify the data model, cryptography, and implementation requirements.

A PIV credential is typically a smart card that conforms to ISO/IEC 7816 and commonly supports an ISO/IEC 14443 contactless interface. The card stores the cardholder’s identity data, a photograph, and often biometric data, along with cryptographic keys and X.509 digital certificates. The PIV data model defines data elements such as a Cardholder Unique Identifier and certificate chains. On the cryptographic side, the card holds certificates for PIV authentication, digital signatures, and key management, enabling secure login to IT systems, digital signing of data, and encrypted communications.

Issuance and management are administered by federal agencies. Eligible personnel undergo identity proofing and background checks before enrollment; the card is issued with appropriate certificates and access profiles. Cards can be read by compatible readers and middleware to enable physical access to facilities and logical access to networks and applications. Certificates and revocation mechanisms, such as certificate status checks, underpin ongoing credential validity.

Beyond federal use, the PIV framework has inspired interoperability efforts like PIV-I for non-federal entities and has influenced broader identity and access management practices. The program emphasizes privacy, security, and standardized credentialing, while requiring appropriate infrastructure and lifecycle management.