For databases enabled for transparent data encryption, a dedicated area called the "Encryption Policy Area" is required to hold your encryption policies. The Encryption Policy Area is a specialized Type II application data area. You cannot perform any record operation on the data in the Encryption Policy Area with either an SQL or an ABL client. The Encryption Policy Area contains one or more extents with a .dn extension, but it is defined in your structure definition file with an "e" token.