return *getSidIdentifierAuthority(sid)
}

// SubAuthorityCount returns the number of sub-authorities in the SID.
func (sid *SID) SubAuthorityCount() uint8 {
	return *getSidSubAuthorityCount(sid)
}

// SubAuthority returns the sub-authority of the SID as specified by
// the index, which must be less than sid.SubAuthorityCount().
func (sid *SID) SubAuthority(idx uint32) uint32 {

const revision=this.decodeUInt8();const subAuthorityCount=this.decodeUInt8();this.decodeUInt16();this.decodeUInt32();if(revision!==1){throw new Error('Invalid SID revision: could not decode the SID structure.');}