services/security/discharger.vdl

package security

import "veyron2/security"

// Discharger is the interface for obtaining discharges for ThirdPartyCaveats.
type Discharger interface {
  // Discharge is called by a principal that holds a blessing with a third
  // party caveat and seeks to get a discharge that proves the fulfillment of
  // this caveat.
  //
  // Caveat and Discharge are of type ThirdPartyCaveat and ThirdPartyDischarge
  // respectively. (not enforced here because vdl does not know these types)
  // TODO(ataly,ashankar): Figure out a VDL representation for ThirdPartyCaveat
  // and Discharge and use those here?
  Discharge(Caveat any, Impetus security.DischargeImpetus) (Discharge any, err error) {security.ReadLabel}
}