Purpose: Paper reviews changes taking place in the cryptocurrency market after the introduction of further sanctions on the Russian financial market. The author notes that cryptocurrencies are used more and more often by companies operating in Russia. The cryptocurrency market remains largely beyond control despite the AML area. It is a source of many threats of money laundering. The paper recapitulates the status of the global trade market choosing settlement cryptocurrency in the context of anti-money laundering. Methodology: The analysis was based on reports on the market quotation of popular cryptocurrencies. Findings: The paper includes definitions of new challenges for AML areas. Practical implications: (if applicable) What outcomes and implications for practice, applications and consequences are identified? How will the research impact the business or enterprise? What changes to practice should be made as a result of this research? What is the commercial or economic impact? Not all papers will have practical implications. Social implications: The application of the proposed solutions will improve the security systems of financial sector institutions. Originality/value: The paper provides guidance on how to assess institutional capacity and support the anti-money laundering process.
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The Russian invasion into Ukraine coincided with a surge in cryptocurrency interest in both nations. Although the decentralized nature of cryptocurrencies facilitates wealth concealment, analyses conducted during the Invasion period reveal no substantial capital transfers or exchange rate fluctuations exceeding pre-invasion benchmarks. This implies a limited utilization of cryptocurrencies for protecting assets throughout the conflict. The current size of the cryptomarket preclude Russia and its oligarchs from depending on cryptocurrencies as an alternative to traditional transaction systems. Nevertheless, cryptocurrencies have effectively functioned as an auxiliary crowdfunding avenue for Ukraine. The Invasion serves as an examination of the potential role of cryptocurrencies in crisis situations, with their importance for national security and crisis management likely to expand as the market experiences continued growth.
PL
Rosyjska inwazja na Ukrainę zbiegła się w czasie ze wzrostem zainteresowania kryptowalutami w obu krajach. Chociaż zdecentralizowany charakter kryptowalut ułatwia ukrywanie bogactwa, to analizy przeprowadzone w okresie inwazji nie ujawniają znaczących transferów kapitałowych ani wahań kursów wymiany przekraczających poziomy odniesienia sprzed inwazji. Wskazuje to na ograniczone wykorzystanie kryptowalut do ochrony aktywów podczas konfliktu. Obecna skala rynku kryptograficznego wyklucza uzależnienie Rosji i jej oligarchów od kryptowalut jako alternatywy dla tradycyjnych systemów transakcyjnych. Płatności kryptowalutowe są natomiast z powodzeniem wykorzystywane jako dodatkowy kanał wsparcia finansowego Ukrainy. Wojna na Ukrainie stanowi swoisty test potencjału kryptowalut i ich rzeczywistych funkcji w warunkach kryzysowych. Znaczenie kryptowalut dla bezpieczeństwa narodowego i zarządzania kryzysowego prawdopodobnie zwiększy się wraz z rozwojem rynku.
The work is devoted to a comparative analysis of tools for managing a cryptocurrency portfolio. The study aimed to find out which of the tools is currently the best solution for users. This analysis was carried out on the basis of two tools, first: a survey conducted of among 41 responders who are cryptocurrency users, and the second one: cognitive walkthrough. Conducted analysis confirmed the thesis that the Trust Wallet tool is currently the best solution for users.
PL
Praca poświęcona jest analizie porównawczej narzędzi do zarządzania portfelem kryptowalut. Badanie miało na celu stwierdzić, który z portfeli stanowi obecnie najlepsze rozwiązanie dla użytkowników. Analiza ta została przeprowadzo-na na podstawie dwóch narzędzi, pierwszego: ankiety przeprowadzonej wśród 41 respondentów, którzy są użytkowni-kami kryptowalut, oraz drugiego: wędrówki poznawczej. Wykonana analiza potwierdziła tezę, że portfel Trust Wallet stanowi obecnie najlepsze rozwiązanie dla użytkowników.
Przedstawiono koncepcję i realizację sprzętowo-programowego akceleratora algorytmu Argon2d. Algorytm ten został wykorzystany w części kryptowalut z tego względu, że jego zastosowanie utrudnia realizację bardziej efektywnych obliczeń na GPU w porównaniu z procesorami x86. Autorzy przedstawili i omówili wyniki testów porównania realizacji czysto programowej z wynikami uzyskanymi z użyciem akceleratora.
EN
The paper presents the concept and implementation of the hardware-software accelerator of the Argon2d algorithm. This algorithm was used in some cryptocurrencies because its use hinders the implementation of more efficient calculations on the GPU compared to x86 processors. The authors presented and discussed the results of tests comparing software implementation with the results obtained using the accelerator.
The research aimed to evaluate suitability of Bitcoin and its platform in emerging markets such as Vietnam. We used qualitative analysis combined with data collection method published, statistics, analysis, synthesis, comparison, to generate qualitative comments and discussion; evaluate results, the article analyzed and evaluated the impacts of Bitcoin and virtual currency on society of Vietnam, both positive and negative sides. It was found that virtual currency not accepted in Vietnam as means of payment yet, while many nations in the world accept it. We need to complete the legal framework for virtual currencies in general, Bitcoin in particular. The State should continue to have policies to improve information technology infrastructure, build and improve the capacity of the contingent of financial experts, encryption, and security experts and give warning risks in virtual currency transactions. The scientific value of paper is using experiences from previous studies in other countries to generate recommendations for conditions of Bitcoin development in merging markets. Last but not least, the research was limited to the case of Vietnam; hence, we can expand research to other Asian countries or other emerging markets.
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Most cloud providers use centralized servers to manage data. However, centralized servers still suffer the risks of single point of failure and data theft. We add a blockchain to the cloud service and propose a new architecture to manage data. Using blockchain as a connector to utilize the tamperproof, traceable, and data-sharing features of the blockchain to ensure that the transaction data are properly stored in each node. We use the stock simulation trading service to extend and divide the research design into two levels, namely, system and application services. First, we directly write the data into the blockchain. Second, we alternatively store the data in the cloud and then write it into the blockchain. Finally, the two versions are compared and analyzed to investigate their feasibility and performance. At the application service, we implement the smart contract for the existing stock transaction process to achieve real-time settlement.
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