Commonly encountered parametersEdit online Some parameters are common to all verbs and other parameters are used with many of the verbs. Parameters common to all verbsA parameter is an address pointer to the associated variable in application program storage.The rule_array and other keyword parametersThe rule_array parameter and some other parameters use keywords to transfer information. Key tokens, key labels, and key identifiersEssentially all cryptographic operations employ one or more keys. In CCA, keys are retained within a structure called a key token. Parent topic: Security API programming fundamentals