Apparatus, method, and computer program product for processing information

A system comprising;

• a memory card comprising;
• a controller,
• a first memory area configured to store first identification information and a first key, wherein the first memory area is not writable from outside,
• a second memory area configured to store encrypted identification information, wherein the second memory area is readable from outside, and
• a host device comprising a second key, wherein
• the memory card generates a third key with the first key,
• the memory card generates authenticate information by using one way calculation based on the third key and the first identification information,
• the memory card sends authenticate information to the host device,
• the host device reads the encrypted identification information stored in the second memory area,
• the host device generates verification data by using the second key and the encrypted identification information, and
• the host device verifies the authenticate information received from the memory device by using the verification data.

A system comprising;

• a memory device comprising;
• a first memory area configured to store first identification information and a first key, wherein the first memory area is not writable from outside,
• a second memory area configured to store encrypted identification information, wherein the second memory area is readable from outside, and
• a host device comprising a second key, wherein
• the encrypted identification information is read from the second memory area, is sent to the host device, and is used to generate verification data with the second key,
• the first key is read from the first memory area, and is used to generate a third key,
• the first identification information is read from the first memory area, and is used to generate authenticate information with the third key, and
• the authenticate information is sent from the memory device to the host device, and the authenticate information is verified by using the verification data.

A memory card authenticated by a host device, comprising;

• a controller,
• a first memory area configured to store first identification information and a first key, wherein the first memory area is not writable from outside,
• a second memory area configured to store encrypted identification information, wherein the second memory area is readable from outside, wherein
• the memory card sends encrypted identification information to the host device,
• the memory card receives host information form the host device,
• the memory card generates a third key based on the host information and the first key,
• the memory card generates authenticate information by using one way calculation based on the third key and the first identification information, and
• the memory card sends authenticate information to the host device.

A host device executes an authentication process with a memory device, wherein

• the memory device comprises a first key and first identification information stored in an inaccessible manner, encrypted identification information and index information stored in a readable manner, the memory device generating authentication information by using the first key and the first identification information;
• and
• the host device is configured to:
• store a plurality of second keys;
• read the encrypted identification information, and the index information from the memory device;
• decrypt the encrypted identification information;
• select one of the plurality of second keys corresponding to the index information;
• generate verification data with the selected second key;
• and
• verify the authenticate information received from the memory device by using the verification data.

A memory device to be authenticated by a host device, comprising;

• a first memory area configured to store first identification information and a first key, wherein the first memory area is not writable from outside,
• a second memory area configured to store encrypted identification information, wherein the second memory area is readable from outside, wherein
• the encrypted identification information is read from the second memory area, is sent to the host device, and is used to generate verification data based on a second key stored the host device,
• the first key is read from the first memory area, and is used to generate a third key,
• the first identification information is read from the first memory area, and is used to generate authenticate information based on the third key, and
• the authenticate information is sent from the memory device to the host device, and the authenticate information is verified by using the verification data.

A memory device to be authenticated by a host device, comprising;

• an inaccessible memory area configured to store identification information and a first key,
• a readable memory area configured to store encrypted identification information, wherein
• the encrypted identification information is sent to the host device, and is used to generate verification data,
• the first key and the identification information are used to generate authenticate information, and
• the authenticate information is sent to the host device, and the authenticate information is verified by using the verification data.

An information processing device comprising;

• a receiver that receives a first key management information and identification information from an external device,
• a generator that generates first information based on the first key management information and the identification information,
• a sender that sends the first key management information to the external device, wherein
• the first information is processable information by the external device.