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- Title
Cryptographic Algorithms with Data Shorter than the Encryption Key, Based on LZW and Huffman Coding.
- Authors
Krokosz, Tomasz; Rykowski, Jarogniew; Zajęcka, Małgorzata; Brzoza-Woch, Robert; Rutkowski, Leszek
- Abstract
Modern, commonly used cryptosystems based on encryption keys require that the length of the stream of encrypted data is approximately the length of the key or longer. In practice, this approach unnecessarily complicates strong encryption of very short messages commonly used for example in ultra-low-power and resource-constrained wireless network sensor nodes based on microcontrollers (MCUs). In such cases, the data payload can be as short as a few bits of data while the typical length of the key is several hundred bits or more. The article proposes an idea of employing a complex of two algorithms, initially applied for data compression, acting as a standard-length encryption key algorithm to increase the transmission security of very short data sequences, even as short as one or a few bytes. In this article, we present and evaluate an approach that uses LZW and Huffman coding to achieve data transmission obfuscation and a basic level of security.
- Subjects
HUFFMAN codes; WIRELESS sensor nodes; DATA compression; DATA transmission systems; WIRELESS sensor networks; ALGORITHMS; INFORMATION technology security
- Publication
Sensors (14248220), 2023, Vol 23, Issue 17, p7408
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s23177408