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4 Secure Messaging

NIST PIV and digital identity SP 800-73-5 against SP 800-73-4
All changes in this version
modified 4 Secure Messaging

Title

Secure Messaging

Control changed

Before · SP 800-73-4

If a PIV Card Application implements the optional secure messaging protocol for non-card-management operations, it shall be implemented as specified in this section. Secure messaging is initiated through the use of a key establishment protocol. The key establishment protocol defined here is a one-way authentication protocol that authenticates the PIV Card Application to the client application and establishes a set of session keys that may be subsequently used to protect the communication channel between the two parties. 13 PIV Cards may implement a different secure messaging protocol for card management operations. Such a protocol is outside of the scope of this document, however, if it is to be used for remote post issuance updates it shall satisfy the requirements of [FIPS201 , Section 2.9.2].

Section 4.1 describes the key establishment protocol used to support secure messaging in the PIV Card Application. Section 4.2 describes the use of secure messaging to protect commands and responses sent between the client application and the PIV Card Application.

After · SP 800-73-5

If a PIV Card Application implements the optional secure messaging protocol for non-card-managementnon-card management operations, it shallSHALL be implemented as specified in this section. Secure messaging is initiated through the use of a key establishment protocol. The key establishment protocol defined here is a one-way authentication protocol that authenticates the PIV Card Application to the client application and establishes a set of session keys that mayMAY be subsequently used to protect the communication channel between the two parties. 1314

14 The protocol does not provide forward secrecy. PIV Cards mayMAY implement a different secure messaging protocol for card management operations. Such a protocol is outside of the scope of this document,. howeverHowever, if it is to be used for remote postpost- issuance updates, it shallSHALL satisfy the requirements of [FIPS201 , Section 2.9.2].

Section 4.1 describes the key establishment protocol used to support secure messaging in the PIV Card Application. Section 4.2 describes the use of secure messaging to protect the commands and responses sent between the client application and the PIV Card Application.