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4.2.2.7 PIV Secure Messaging Key

NIST PIV and digital identity FIPS 201-3 against FIPS 201-2
All changes in this version
added 4 PIV Front-End Subsystem part of 4.2.2

Title changed

Before · FIPS 201-2

After · FIPS 201-3

PIV Secure Messaging Key

Control changed

Before · FIPS 201-2

After · FIPS 201-3

The PIV secure messaging key supports the establishment of secure messaging and authentication using the SM-AUTH authentication mechanism. If present, the key SHALL be generated on the PIV Card and SHALL NOT be exported. The cryptographic operations that use the PIV secure messaging key SHALL be available through the contact and contactless interfaces of the PIV Card. Private key operations 31 can be performed without access control restrictions. The PIV Card SHALL store a corresponding secure messaging card verifiable certificate (CVC) to support validation of the public key by the relying system. The use of the PIV secure messaging key and the CVC is further specified in [SP 800-73] and [SP 800-78].

When the key is used to establish secure messaging, it enables data and commands transmitted between the card and an external entity to be both integrity-protected and encrypted. Secure messaging MAY be used, for example, to enable the use of on-card biometric comparison. Once secure messaging has been established, a virtual contact interface MAY be established.