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8.1.5.1.2 Distribution of Ephemeral Public Keys

NIST platform security: roots of trust, firmware and secure enclaves SP 800-57 Part 1 Rev. 5 against SP 800-57 Part 1 Rev. 4
All changes in this version
modified 8 Transition: A transition plan should be developed and followed so that the changeover part of 8.1.5.1

Title

Distribution of Ephemeral Public Keys

Control changed

Before · SP 800-57 Part 1 Rev. 4

When used, ephemeral public keys are distributed as part of a secure key-agreement protocol. The key-agreement process (i.e., the key-agreement scheme + the protocol + key confirmation + any associated negotiation + local processing) should provide a recipient with the assurances listed in Section 8.1.5.1.1 . The recipient of an ephemeral public key shall obtain assurance of validity of that key as specified in [SP800-56A] prior to using that key for subsequent steps in the key-agreement process.

After · SP 800-57 Part 1 Rev. 5

When used, ephemeral public keys are distributed as part of a secure key-agreement protocol. The key-agreement process (i.e., the key-agreement scheme + the protocol + key confirmation + any associated negotiation + local processing) should provide a recipient with the assurances listed in Section 8.1.5.1.1 . The recipient of an ephemeral public key shall obtain assurance of validity of that key as specified in [SP800-56A]SP 800-56A prior to using that key for subsequent steps in the key-agreementkey- agreement process.