Patent ID: 9225513
Filing Date: 2015-12-29
Classification: G06F,H04L

Abstract:
1. A memory device controlled by a controller, the memory device comprising: a first area which stores first key data and first data unique to the memory device, the first area being unreadable from outside of the memory device; and a second area which stores encrypted first data generated by encrypting the first data, the second area being readable, wherein the memory device is configured to: perform an AES (Advanced Encryption Standard) encryption process using the first key data and second data to generate second key data, the second data being externally received, perform an AES encryption process using the second key data and third data to generate third key data, the third data being externally received, and perform a one-way conversion process using the third key data and the first data to generate fourth data used for authentication with an external device, and wherein the second data and the third data is provided from a host device which performs an authentication process with the memory device using the fourth data, and the third data is a random number generated by the host device, the memory device is configured to transmit index information to the host device, and the host device is configured to generate information based on the index information for the authentication process.