DEVICE FOR DATA REPRODUCTION

摘要

A cellular phone (100) has distributed encrypted content data and an encrypted content key stored in a memory (110). The encrypted content key data read out from the memory (110) is decrypted by a decryption processing unit (1530) using key data Kp stored in a Kp hold unit (1540), and then applied to a audio reproduction module (1500). A decryption processing unit (1520) decrypts encrypted content data read out from the memory (110) using a content key Kc extracted by the decryption processing unit (1530) to reproduce content data Dc.