公开(公告)号：US20230139330A1

公开(公告)日：2023-05-04

申请号：US17664889

申请日：2022-05-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wijik Lee ,  Dongouk Moon ,  Seunghan Lee ,  Jinwook Lee

IPC: G06F21/79 ,  G06F21/60 ,  G06F21/76 ,  H04L9/00

Abstract: Storage devices and systems implementing blockchain networks based on proof of space (PoS) are described. A PoS module may be configured to perform PoS processing of PoS data transferred through an interface circuit to generate operation data. A security module may be configured to perform encryption of user data (to generate first encrypted data) and encryption of the operation data (to generate second encrypted data) using different encryption algorithms. A nonvolatile memory device may then store the first encrypted data and the second encrypted data in different namespaces (e.g., user data may be stored in a user namespace and PoS data may be stored in a PoS namespace). Accordingly, interference and/or malicious effect between the user data and the PoS data may be reduced (e.g., blocked) and stability of the PoS algorithm may be enhanced.