Supported encryption padding types appear in the Padding section of TdgssLibraryConfigFile.xml as follows:
<Padding NoPadding="0" OAEPWithDIGESTAndMGFPadding="1" PKCS1Padding="3" PKCS5Padding="4" SSL3Padding="5"> </Padding>
The numbers associated with each padding type are used by the underlying mechanism code to represent the represent the padding type.