Patent ID: 9734306
Date: 2017-08-15
CPC Classifications: G06F,H04L

Claim:
1. An information processing apparatus, comprising: one or more first processors configured to: access a data storage unit attached to the information processing apparatus, wherein the data storage unit is configured to store encrypted content and data containing an encryption key to be used in decrypting the encrypted content, and has a protected area including a block allowing access thereto based on an access right check made on each block, transmit an input block identifier to a content correspondence information providing server that writes the encryption key, wherein the block identifier corresponds to an identifier of a block, that is within the protected area in the data storage unit, to write the encryption key, and write the encrypted content into the data storage unit, the data storage unit includes one or more second processors configured to: make the access right check to determine whether the content correspondence information providing server is a server allowed to write data into the block corresponding to the block identifier based on a server certificate set for the content correspondence information providing server, and allow the content correspondence information providing server to write the encryption key into the block that is within the protected area based on confirmation of an access right.