Credential represents an credential of an identity
type Credential interface {
// Type returns type of this credential
Type() string
// EnrollmentID returns enrollment ID associated with this credential
// Returns an error if the credential value is not set (SetVal is not called)
// or not loaded from the disk (Load is not called)
EnrollmentID() (string, error)
// Val returns credential value.
// Returns an error if the credential value is not set (SetVal is not called)
// or not loaded from the disk (Load is not called)
Val() (interface{}, error)
// Sets the credential value
SetVal(val interface{}) error
// Stores the credential value to disk
Store() error
// Loads the credential value from disk and sets the value of this credential
Load() error
// CreateToken returns authorization token for the specified request with
// specified body
CreateToken(req *http.Request, reqBody []byte) (string, error)
// Submits revoke request to the Fabric CA server to revoke this credential
RevokeSelf() (*api.RevocationResponse, error)
}