PropertyRuleAuthenticationField The PropertyRuleAuthenticationField PropertyRule is intended to be used to make a property that has a name starting with “Crc” be automatically set up as an CalculatedAuthenticationResult property. It uses the following conditions: If a property name starts with Crc (case-insensitive) and that property does not have an CalculatedAuthentication or CalculatedAuthenticationResult attribute attached to it the the property has a CalculatedAuthenticationResult attribute added to it with a CalculatorType set to CalculatorAuthenticationCrc16. If the property name starts with Crc (case-insensitive) and there is not a CalculatedLength or CalculatedLengthResult attribute attached to the property, a CalculatedLength attribute is added to the property with Exclude set to true. This makes it so that the calculated field will not be included in the length calculation for the message.