Key-Derivation Procedure definition in Computer Security terms:
Definition(s): A procedure consisting of multiple steps and using an approved algorithm (e.g., a MAC algorithm) by which keying material is derived from a shared secret and other information.
Source(s): NIST SP 800-56A Rev. 2
A multi-step process that uses an approved Message Authentication Code (MAC) algorithm to derive keying material from a shared secret and other information.
Source(s): NIST SP 800-56B Rev. 1
reference: CSRC Glossary