Offline Payment of Central Bank Digital Currency Based on a Trusted Platform Module
The implementation of Central Bank Digital Currencies (CBDCs) faces significant challenges in achieving the same level of anonymity and convenience in offline transactions as cash. This limitation imposes considerable constraints on the development and widespread adoption of CBDCs. Unlike cash, digi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Journal of Cybersecurity and Privacy |
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| Online Access: | https://www.mdpi.com/2624-800X/5/2/14 |
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| _version_ | 1849472372888829952 |
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| author | Jaeho Yoon Yongmin Kim |
| author_facet | Jaeho Yoon Yongmin Kim |
| author_sort | Jaeho Yoon |
| collection | DOAJ |
| description | The implementation of Central Bank Digital Currencies (CBDCs) faces significant challenges in achieving the same level of anonymity and convenience in offline transactions as cash. This limitation imposes considerable constraints on the development and widespread adoption of CBDCs. Unlike cash, digital currencies, similar to other electronic payment methods, necessitate internet or other network connectivity to verify payment eligibility. This study proposes a secure offline payment model for CBDCs that operates independently of internet or network connections by utilizing a Trusted Platform Module (TPM) to enhance the security of digital currency transactions. Additionally, the monotonic counter, the basic component of the TPM, is integrated into this model to prevent double spending in a completely offline environment. Our research presents a protocol model that combines these easily implementable technologies to facilitate the efficient processing of transactions in CBDCs entirely offline. However, it is crucial to acknowledge the security implications associated with the TPMs and near-field communications upon which this protocol relies. |
| format | Article |
| id | doaj-art-044140306e8b4f2e98ebfcffb8164f97 |
| institution | Kabale University |
| issn | 2624-800X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Cybersecurity and Privacy |
| spelling | doaj-art-044140306e8b4f2e98ebfcffb8164f972025-08-20T03:24:33ZengMDPI AGJournal of Cybersecurity and Privacy2624-800X2025-04-01521410.3390/jcp5020014Offline Payment of Central Bank Digital Currency Based on a Trusted Platform ModuleJaeho Yoon0Yongmin Kim1Department of Information Security Convergence, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of KoreaDepartment of Electronic Commerce, Chonnam National University, 50 Daehak-ro, Yeosu 559626, Republic of KoreaThe implementation of Central Bank Digital Currencies (CBDCs) faces significant challenges in achieving the same level of anonymity and convenience in offline transactions as cash. This limitation imposes considerable constraints on the development and widespread adoption of CBDCs. Unlike cash, digital currencies, similar to other electronic payment methods, necessitate internet or other network connectivity to verify payment eligibility. This study proposes a secure offline payment model for CBDCs that operates independently of internet or network connections by utilizing a Trusted Platform Module (TPM) to enhance the security of digital currency transactions. Additionally, the monotonic counter, the basic component of the TPM, is integrated into this model to prevent double spending in a completely offline environment. Our research presents a protocol model that combines these easily implementable technologies to facilitate the efficient processing of transactions in CBDCs entirely offline. However, it is crucial to acknowledge the security implications associated with the TPMs and near-field communications upon which this protocol relies.https://www.mdpi.com/2624-800X/5/2/14central bank digital currencydigital walletoffline paymenttrusted platform moduleJSON web token |
| spellingShingle | Jaeho Yoon Yongmin Kim Offline Payment of Central Bank Digital Currency Based on a Trusted Platform Module Journal of Cybersecurity and Privacy central bank digital currency digital wallet offline payment trusted platform module JSON web token |
| title | Offline Payment of Central Bank Digital Currency Based on a Trusted Platform Module |
| title_full | Offline Payment of Central Bank Digital Currency Based on a Trusted Platform Module |
| title_fullStr | Offline Payment of Central Bank Digital Currency Based on a Trusted Platform Module |
| title_full_unstemmed | Offline Payment of Central Bank Digital Currency Based on a Trusted Platform Module |
| title_short | Offline Payment of Central Bank Digital Currency Based on a Trusted Platform Module |
| title_sort | offline payment of central bank digital currency based on a trusted platform module |
| topic | central bank digital currency digital wallet offline payment trusted platform module JSON web token |
| url | https://www.mdpi.com/2624-800X/5/2/14 |
| work_keys_str_mv | AT jaehoyoon offlinepaymentofcentralbankdigitalcurrencybasedonatrustedplatformmodule AT yongminkim offlinepaymentofcentralbankdigitalcurrencybasedonatrustedplatformmodule |