A reception apparatus includes: a reception unit for receiving the
scrambled content, the scrambled content being scrambled so that a
predetermined unit of scrambled content is descrambled using a
descrambling key corresponding to the predetermined unit of scrambled
content, and at least one piece of storage information in which a list
including all descrambling keys used for descrambling the scrambled
content is embedded; storage unit for storing the received scrambled
content and the storage information; list extraction unit for extracting
the list from the stored storage information; descramble processing unit
for extracting the predetermined unit of scrambled content from the
stored scrambled content, extracting a descrambling key corresponding to
the predetermined unit of scrambled content from the extracted list, and
descrambling the extracted predetermined unit of scrambled content using
the extracted descrambling key; and reproduction unit for reproducing the
predetermined unit of descrambled content in the descrambled order.