Term:Key Agreement

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NIST SP 800-56A

Key Agreement - A key establishment procedure where the resultant secret keying material is a function of information contributed by two participants, so that no party can predetermine the value of the secret keying material independently from the contributions of the other parties. Contrast with key transport.

NIST SP 800-57P1

Key Agreement - A key establishment procedure where resultant keying material is a function of information contributed by two or more participants, so that no party can predetermine the value of the keying material independent of the other party's contribution.