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Lightweight compression with encryption based on asymmetric numeral systems

Duda Jarosław, Niemiec Marcin

International Journal of Applied Mathematics and Computer Science

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2023

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Vol. 33, no. 1

45--55

EN

Data compression combined with effective encryption is a common requirement of data storage and transmission. Low cost of these operations is often a high priority in order to increase transmission speed and reduce power usage. This requirement is crucial for battery-powered devices with limited resources, such as autonomous remote sensors or implants. Well-known and popular encryption techniques are frequently too expensive. This problem is on the increase as machine-to-machine communication and the Internet of Things are becoming a reality. Therefore, there is growing demand for finding trade-offs between security, cost and performance in lightweight cryptography. This article discusses asymmetric numeral systems-an innovative approach to entropy coding which can be used for compression with encryption. It provides a compression ratio comparable with arithmetic coding at a similar speed as Huffman coding; hence, this coding is starting to replace them in new compressors. Additionally, by perturbing its coding tables, the asymmetric numeral system makes it possible to simultaneously encrypt the encoded message at nearly no additional cost. The article introduces this approach and analyzes its security level. The basic application is reducing the number of rounds of some cipher used on ANS-compressed data, or completely removing an additional encryption layer when reaching a satisfactory protection level.

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Hybrid cryptography with a one-time stamp to secure contact tracing for COVID-19 infection

El-Douh Ahmed Abdel-Rahim, Lu Song Feng, Elkouny Abdelatif A., Amein A.S.

International Journal of Applied Mathematics and Computer Science

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2022

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Vol. 32, no. 1

139--146

EN

The COVID-19 pandemic changed the lives of millions of citizens worldwide in the manner they live and work to the so-called new norm in social standards. In addition to the extraordinary effects on society, the pandemic created a range of unique circumstances associated with cybercrime that also affected society and business. The anxiety due to the pandemic increased the probability of successful cyberattacks and as well as number and range. For public health officials and communities, location tracking is an essential component in the their efforts to combat the disease. The governments provide a lot of mobile apps to help health officials to trace the infected persons and contact them to aid and follow up on the health status, which requires an exchange of data in different forms. This paper presents the one-time stamp model as a new cryptography technique to secure different contact forms and protect the privacy of the infected person. The one-time stamp hybrid model consists of a combination of symmetric, asymmetric, and hashing cryptography in an entirely new way that is different from conventional and similar existing algorithms. Several experiments have been carried out to analyze and examine the proposed technique. Also, a comparison study has been made between our proposed technique and other state-of-the-art alternatives. Results show that the proposed one-time stamp model provides a high level of security for the encryption of sensitive data relative to other similar techniques with no extra computational cost besides faster processing time.

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Prezentacja nowych technologii SCIP – NINE oraz ich wykorzystanie dla potrzeb kierowania stacjami radiolokacyjnymi

Dróżdż H., Sędek E.

Elektronika : konstrukcje, technologie, zastosowania

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2017

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Vol. 58, nr 3

18--22

PL

Artykuł przedstawia pogłębioną charakterystykę nowych technologii telekomunikacji SCIP – NINE, których celem jest zapewnienie interoperacyjności dowództw, sztabów i pododdziałów w operacjach sojuszniczych wykorzystujących różne utajnione systemy łączności, które takiej cechy nie posiadają. Szczególną uwagę zwrócono na aspekty bezpieczeństwa łączności pomiędzy terminalami SCIP, SCIP/NINE zapewniającymi utajnioną łączność poprzez istniejące sieci heterogeniczne, co jest istotnym elementem sieciocentryczności systemów stacjonarnych i polowych. Ponadto autorzy przedstawili ogólny scenariusz wykorzystania tych technologii dla potrzeb kierowania stacjami radiolokacyjnymi w dywizjonie obrony przeciwlotniczej.

EN

This paper presents depth characterization the new technologies of telecommunication ie. SCIP (Security Communications Ineroperability Protocol) and NINE ((Network and Information IP Encryption) that will be used for interoperability commands, headquarters and military units on the battlefied. Especially it is needed during coalition operations, where are used different secure communication systems without possibility of interoperability. Particular attention autors paid on SCIP/NINE transfer aspects between secure enclaves of the heterogenic nets. This is an essential problem in the network-centric stationary and field communication systems. Additionally autors presented general operational scenario of utility these technologies for managing the radars used in anti-aircraft defence squadron.