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B.1.7 Authentication Using Secure Messaging Key (SM-AUTH)

NIST PIV and digital identity SP 800-73-5 against SP 800-73-4
All changes in this version
added Appendix B PIV Authentication Mechanisms part of B.1

Title changed

Before · SP 800-73-4

After · SP 800-73-5

Authentication Using Secure Messaging Key (SM-AUTH)

Control changed

Before · SP 800-73-4

After · SP 800-73-5

If the PIV Card supports the secure messaging protocol, then the secure messaging key, corresponding CVC, and key establishment protocol (see Sec. 4 of SP 800-73-5 Part 2) CAN be used for authentication of the PIV Card and the cardholder (SM-AUTH). The secure messaging protocol authenticates the PIV Card via the secure messaging key. Any established session keys SHALL be zeroized after authentication if bits b3 and b4 of subsequent command CLA bytes are set to zero.

Figure 8 shows the authentication mechanism using the secure messaging key.

Fig. 8. Authentication using the secure messaging key