Abstract: A nonvolatile memory system is disclosed. The nonvolatile memory system includes a host device and a storage device connected to the host device through a physical cable including a power line and a data line. The storage device includes: a nonvolatile memory; a link controller configured to temporarily deactivate the data line while supplying power from the host device through the power line; and a memory controller including a user verification circuit configured to authenticate a user of the storage device and change a state of the memory controller according to a verification result, a relink trigger circuit configured to control the link controller based on the state change of the memory controller, and a data processing circuit configured to encrypt and decrypt data.

Abstract: A storage device is configured to be connected to a host device via a physical cable which includes a power line and a data line. The storage device includes a non-volatile memory, a data path controller configured to temporarily deactivate the data line while power is supplied from the host device via the power line, and a memory controller. The memory controller includes a biometric module configured to receive biometric data and perform user authentication based on the biometric data; a biometric processing circuit configured to change a state of the memory controller, based on a result of the user authentication; and a data processing circuit configured to encrypt and decrypt data. The data path controller is configured to temporarily deactivate the data line in response to the changed state of the memory controller.

Abstract: A nonvolatile memory system is disclosed. The nonvolatile memory system includes a host device and a storage device connected to the host device through a physical cable including a power line and a data line. The storage device includes: a nonvolatile memory; a link controller configured to temporarily deactivate the data line while supplying power from the host device through the power line; and a memory controller including a user verification circuit configured to authenticate a user of the storage device and change a state of the memory controller according to a verification result, a relink trigger circuit configured to control the link controller based on the state change of the memory controller, and a data processing circuit configured to encrypt and decrypt data.

Abstract: A memory controller includes a key generator, an encryption and decryption circuit, and a processor. The key generator generates a first security key and a second security key based on a write request from a host. The encryption and decryption circuit encrypts write data corresponding to the write request based on the first security key to generate encrypted write data, and encrypts the first security key based on the second security key to generate a first encrypted security key. The processor controls nonvolatile memories such that the encrypted write data, the first encrypted security key, and the second security key are programmed in at least one of the nonvolatile memories, and controls the nonvolatile memories such that a dummy program operation is performed on a page of the nonvolatile memories in which the second security key is programmed instead of erasing the encrypted write data.

Abstract: A memory controller and a storage device including the same are disclosed. A memory controller for controlling a nonvolatile memory includes: a security access control module configured to convert biometric authentication data received from a biometric module into security configuration data having a data format according to a security standard protocol and perform, based on the security configuration data, at least one of authority registration and authority authentication of a user authority set for an access control of a secure area of the nonvolatile memory, encrypted user data being stored in the secure area; and a data processing unit configured to, based on an access to the secure area being permitted, encrypt user data received from a host device or decrypt the encrypted user data read from the secure area.

Abstract: A storage device is configured to be connected to a host device via a physical cable which includes a power line and a data line. The storage device includes a non-volatile memory, a data path controller configured to temporarily deactivate the data line while power is supplied from the host device via the power line, and a memory controller. The memory controller includes a biometric module configured to receive biometric data and perform user authentication based on the biometric data; a biometric processing circuit configured to change a state of the memory controller, based on a result of the user authentication; and a data processing circuit configured to encrypt and decrypt data. The data path controller is configured to temporarily deactivate the data line in response to the changed state of the memory controller.

Abstract: A nonvolatile memory system is disclosed. The nonvolatile memory system includes a host device and a storage device connected to the host device through a physical cable including a power line and a data line. The storage device includes: a nonvolatile memory; a link controller configured to temporarily deactivate the data line while supplying power from the host device through the power line; and a memory controller including a user verification circuit configured to authenticate a user of the storage device and change a state of the memory controller according to a verification result, a relink trigger circuit configured to control the link controller based on the state change of the memory controller, and a data processing circuit configured to encrypt and decrypt data.

Abstract: A memory controller includes a key generator, an encryption and decryption circuit, and a processor. The key generator generates a first security key and a second security key based on a write request from a host. The encryption and decryption circuit encrypts write data corresponding to the write request based on the first security key to generate encrypted write data, and encrypts the first security key based on the second security key to generate a first encrypted security key. The processor controls nonvolatile memories such that the encrypted write data, the first encrypted security key, and the second security key are programmed in at least one of the nonvolatile memories, and controls the nonvolatile memories such that a dummy program operation is performed on a page of the nonvolatile memories in which the second security key is programmed instead of erasing the encrypted write data.

Abstract: A memory controller and a storage device including the same are disclosed. A memory controller for controlling a nonvolatile memory includes: a security access control module configured to convert biometric authentication data received from a biometric module into security configuration data having a data format according to a security standard protocol and perform, based on the security configuration data, at least one of authority registration and authority authentication of a user authority set for an access control of a secure area of the nonvolatile memory, encrypted user data being stored in the secure area; and a data processing unit configured to, based on an access to the secure area being permitted, encrypt user data received from a host device or decrypt the encrypted user data read from the secure area.

Abstract: A nonvolatile memory system is disclosed. The nonvolatile memory system includes a host device and a storage device connected to the host device through a physical cable including a power line and a data line. The storage device includes: a nonvolatile memory; a link controller configured to temporarily deactivate the data line while supplying power from the host device through the power line; and a memory controller including a user verification circuit configured to authenticate a user of the storage device and change a state of the memory controller according to a verification result, a relink trigger circuit configured to control the link controller based on the state change of the memory controller, and a data processing circuit configured to encrypt and decrypt data.

Abstract: A storage device is configured to be connected to a host device via a physical cable which includes a power line and a data line. The storage device includes a non-volatile memory, a data path controller configured to temporarily deactivate the data line while power is supplied from the host device via the power line, and a memory controller. The memory controller includes a biometric module configured to receive biometric data and perform user authentication based on the biometric data; a biometric processing circuit configured to change a state of the memory controller, based on a result of the user authentication; and a data processing circuit configured to encrypt and decrypt data. The data path controller is configured to temporarily deactivate the data line in response to the changed state of the memory controller.