Design of a Lightweight Cryptographic Scheme for Resource-Constrained Internet of Things Devices

We propose an ultra-lightweight cryptographic scheme called “Small Lightweight Cryptographic Algorithm (SLA)”. The SLA relies on substitution–permutation network (SPN). It utilizes 64-bit plaintext and supports a key length of 80/128-bits. The SLA cipher includes nonlinear layers, XOR operations, an...

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Bibliographic Details
Published in:Applied sciences 2023-04, Vol.13 (7), p.4398
Main Authors: Ibrahim, Nahla, Agbinya, Johnson
Format: Article
Language:English
Subjects:
Algorithms
Analysis
block cipher
Cryptography
Data encryption
Design
Embedded systems
encryption
Internet of Things
Internet of Things (IoT)
Investment analysis
Lightweight
lightweight cryptographic scheme
Measurement
Nonlinearity
Nuclear energy
Permutations
Radiation
resource-constrained
Software
SP-network
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Summary:We propose an ultra-lightweight cryptographic scheme called “Small Lightweight Cryptographic Algorithm (SLA)”. The SLA relies on substitution–permutation network (SPN). It utilizes 64-bit plaintext and supports a key length of 80/128-bits. The SLA cipher includes nonlinear layers, XOR operations, and round permutation layers. The S-box serves to introduce nonlinearity in the entire scheme design. It plays a vital role in increasing the complexity and robustness of the design. The S-box can thwart attacks such as linear and differential attacks. The scheme makes it possible to breed many active S-boxes in a short number of rounds, hindering analytical attacks on the cipher. When compared to other currently used ciphers, SLA has a higher throughput. Additionally, we demonstrate the SLA’s performance as an ultra-lightweight compact cipher, and its security analysis. The SLA cipher’s design is well suited for applications where small-scale embedded system dissipation is critical. The SLA algorithm is implemented using Python.
ISSN:2076-3417
2076-3417
DOI:10.3390/app13074398