Abstract: A storage controller and a storage system comprising the same are provided. Provided is a device security manager configured to set a first device security zone to allow a first tenant to access first tenant data stored in a non-volatile memory, receive access information from a host device and writing the received access information in a mapping table, wherein the access information includes a first host memory address in which the first tenant data is stored in the host device, a first namespace identifier for identifying the first tenant data stored in the non-volatile memory, a first logic block address corresponding to the first namespace identifier, and an encryption key, encrypt the first tenant data by using the encryption key, and write the encrypted first tenant data in the first device security zone of the non-volatile memory.

Abstract: The present disclosure is directed to a system and method for decoding a polar encoded codeword using a frozen bit pattern determined based on a frozen bit pattern derived for a trellis decoder with a different routing structure between each of a plurality of processing stages. The frozen bit pattern can be determined based on the frozen bit pattern derived for the trellis decoder with the different routing structure between each of the plurality of processing stages such that a belief propagation decoder that uses a plurality of time-multiplexed processing elements with a fixed routing interconnect can still achieve a high decoding performance.