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- Title
Low-Cost AES-128 Implementation for Edge Devices in IoT Applications.
- Authors
Shanthi Rekha, S.; Saravanan, P.
- Abstract
Internet of Things (IoT) is an ecosystem of connected edge devices that are accessible through the internet. Recent research focusses on adding more smartness and intelligence to these edge devices making them susceptible to various kinds of security threats. These edge devices rely on cryptographic techniques to encrypt the pre-processed data collected from the sensors deployed in the field. Since the edge devices are resource constrained, low-cost implementations of cryptographic algorithms are desirable. This work proposes a novel low-cost implementation of a versatile symmetric encryption algorithm namely Advanced Encryption Standard (AES) using time-multiplexed architectures for edge devices. The optimization is carried out in a four-fold manner on AES encryption/decryption hardware based on the resource sharing mechanism with a modified Substitution box achieving a maximum of 1.053 GHz operating frequency. The aim of this work is to develop an area-power efficient AES architecture with a reasonable throughput suitable for resource constrained applications. The proposed architectures are synthesized on a Virtex-6 FPGA board and the ASIC performance results are obtained using 180 nm SCL technology library. Implementation results of the proposed AES core integrated with an UART module are shown as a proof of concept.
- Subjects
ADVANCED Encryption Standard; INTERNET of things; EDGES (Geometry)
- Publication
Journal of Circuits, Systems & Computers, 2019, Vol 28, Issue 4, pN.PAG
- ISSN
0218-1266
- Publication type
Article
- DOI
10.1142/S0218126619500622