STORAGE DEVICE, METHOD FOR GENERATING KEY IN STORAGE DEVICE, AND METHOD FOR PERFORMING CERTIFICATION OF STORAGE DEVICE

• Main Authors: KIM, Ji Soo, KWON, Hyun Soo, BAE, Mun Gyu, CHU, Youn Sung
• Format: Patent
• Language: English; French; German
• Published: 22.03.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; PHYSICS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

A storage device (200) having improved security reliability includes a non-volatile memory (220), and a storage controller (210) configured to control an operation of the non-volatile memory (220), generate a key material, receive a key identification (ID) from a firmware (219), determine whether a salt value matching the key ID is stored in the non-volatile memory (220), generate a private key using the salt value stored in the non-volatile memory (220) and the key material in response to determining that the salt value matching the key ID is stored in the non-volatile memory (220), and, in response to determining that the salt value matching the key ID is not stored in the non-volatile memory (220), receive a salt value from the firmware (219) and generate the private key using the salt value from the firmware and the key material, and store the salt value used for generating the private key in the non-volatile memory (220).