Information processing device and information processing method

An information processing method, comprising:

• receiving a content revocation list form a server, wherein the content revocation list is corresponding to reproduction content from a content source, wherein the content revocation list comprises a first identifier (ID) of revoked content, and wherein the revoked content is illegally copied content;
• receiving content management data corresponding to the reproduction content, wherein the content management data comprises a token, wherein the token comprises a first minimum allowable version of the content revocation list and a content ID of the reproduction content, and wherein the content ID is based on a combination of a server ID of the server and a unique content ID;
• comparing the first minimum allowable version of the content revocation list recorded in the token with a version of the received content revocation list;
• suspending a first determination of whether to revoke the reproduction content based on a second determination that the received content revocation list is a lower version than the first minimum allowable version of the content revocation list recorded in the token;
• reproducing the reproduction content based on a third determination that the content ID of the reproduction content is unrecorded in the content revocation list;
• receiving a server revocation list corresponding to the reproduction content, wherein the server revocation list comprises a second identifier (ID) of a revoked server, and wherein the token further comprises a second minimum allowable version of the received server revocation list;
• comparing the second minimum allowable version of the server revocation list recorded in the token with a version of the received server revocation list, and
• suspending a fourth determination of whether to revoke the server based on a fifth determination that the received server revocation list is a lower version than the second minimum allowable version of the server revocation list recorded in the token.

A non-transitory computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to execute operations, the operations comprising:

• receiving a content revocation list form a server, wherein the content revocation list is corresponding to reproduction content from a content source, wherein the content revocation list comprises a first identifier (ID) of revoked content, and wherein the revoked content is illegally copied content;
• receiving content management data corresponding to the reproduction content, wherein the content management data comprises a token, wherein the token comprises a first minimum allowable version of the content revocation list and a content ID of the reproduction content, and wherein the content ID is based on a combination of a server ID of the server and a unique content ID;
• comparing the first minimum allowable version of the content revocation list recorded in the token with a version of the received content revocation list;
• suspending a first determination of whether to revoke the reproduction content based on second determination that the received content revocation list is a lower version than the first minimum allowable version of the content revocation list recorded in the token;
• reproducing the reproduction content based on a third determination that the content ID of the reproduction content is unrecorded in the content revocation list;
• receiving a server revocation list corresponding to the reproduction content, wherein the server revocation list comprises a second identifier (ID) of a revoked server, and wherein the token further comprises a second minimum allowable version of the received server revocation list;
• comparing the second minimum allowable version of the server revocation list recorded in the token with a version of the received server revocation list;
• and
• suspending a fourth determination of whether to revoke the server based on a fifth determination that the received server revocation list is a lower version than the second minimum allowable version of the server revocation list recorded in the token.