Key-value storage device and operation method thereof

Provided are a key-value storage device and an operation method thereof. The key-value storage device includes a non-volatile memory including a plurality of blocks, and a controller configured to control a memory operation on the non-volatile memory, receive a write command including a first key and a first value corresponding to the first key from a host, write data of a file corresponding to the first value to at least one block of the plurality of blocks of the non-volatile memory in response to the write command, receive a secure deletion command for the first value from the host, and erase the at least one block to which the first value is written, in response to the secure deletion command. 提供了一种键值存储装置和一种操作该键值存储装置的方法。键值存储装置包括具有多个块的非易失性存储器和控制器，控制器被配置为：控制对非易失性存储器的存储器操作；从主机接收包括第一键和与第一键对应的第一值的写入命令；响应于写入命令，将与第一值对应的文件的数据写入到非易失性存储器的所述多个块中的至少一个块；从主机接收针对第一值的安全删除命令；并且响应于安全删除命令擦除被写入第一值的所述至少一个块。