Block in Bundle                ID
+==========================================+====+
|              Primary Block               | B1 |
+------------------------------------------+----+
|                    BIB                   | B2 |
|      OP(bib-integrity, target = B1)      |    |
+------------------------------------------+----+
|                    BIB (encrypted)       | B7 |
|      OP(bib-integrity, targets = B5, B6) |    |
+------------------------------------------+----+
|                    BCB                   | B8 |
|OP(bcb-confidentiality,targets = B5,B6,B7)|    |
+------------------------------------------+----+
|                    BCB                   | B3 |
|    OP(bcb-confidentiality, target = B4)  |    |
+------------------------------------------+----+
|       Extension Block (encrypted)        | B4 |
+------------------------------------------+----+
|       Extension Block (encrypted)        | B5 |
+------------------------------------------+----+
|         Payload Block (encrypted)        | B6 |
+------------------------------------------+----+