VeloCash: Anonymous Decentralized Probabilistic Micropayments With Transferability
Micropayments are one of the challenges in cryptocurrencies. Micropayments on the blockchain have the problem that the fee is high for the transfer amount. As a countermeasure, a method called Layer-two has been proposed to consolidate transactions outside the blockchain and improve the blockchain&#...
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| Veröffentlicht in: | IEEE access 2022, Vol.10, p.93701-93730 |
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| creator | Takahashi, Taisei Higuchi, Taishi Otsuka, Akira |
| description | Micropayments are one of the challenges in cryptocurrencies. Micropayments on the blockchain have the problem that the fee is high for the transfer amount. As a countermeasure, a method called Layer-two has been proposed to consolidate transactions outside the blockchain and improve the blockchain's throughput. As one of the existing Layer-two schemes, Decentralized Probabilistic Micropayments have been proposed. The winning amount is registered in the blockchain, and the lottery tickets are issued to be won with probability p , which allows us to aggregate approximately (1/p) transactions into one. Unfortunately, existing solutions do not allow for ticket transferability, and the smaller p , the more difficult it is to use them in the real world. Here we propose \textsf {VeloCash} , Decentralized Probabilistic Micropayments with Transferability, which preserves anonymity. By introducing tamper-proof assumptions for sending and receiving the tickets, we make p smaller. As a tamper-proof hardware assumption, \textsf {VeloCash} uses Attested Execution Secure Processors, a formal abstraction of secure processors with attested execution functionality and Direct Anonymous Attestation to achieve anonymity for sending and receiving tickets. \textsf {VeloCash} can detect double-spending attacks perfectly and revoke the adversary's device. |
| doi_str_mv | 10.1109/ACCESS.2022.3201071 |
| format | Article |
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Micropayments on the blockchain have the problem that the fee is high for the transfer amount. As a countermeasure, a method called Layer-two has been proposed to consolidate transactions outside the blockchain and improve the blockchain's throughput. As one of the existing Layer-two schemes, Decentralized Probabilistic Micropayments have been proposed. The winning amount is registered in the blockchain, and the lottery tickets are issued to be won with probability <inline-formula> <tex-math notation="LaTeX">p </tex-math></inline-formula>, which allows us to aggregate approximately <inline-formula> <tex-math notation="LaTeX">(1/p) </tex-math></inline-formula> transactions into one. Unfortunately, existing solutions do not allow for ticket transferability, and the smaller <inline-formula> <tex-math notation="LaTeX">p </tex-math></inline-formula>, the more difficult it is to use them in the real world. Here we propose <inline-formula> <tex-math notation="LaTeX">\textsf {VeloCash} </tex-math></inline-formula>, Decentralized Probabilistic Micropayments with Transferability, which preserves anonymity. By introducing tamper-proof assumptions for sending and receiving the tickets, we make <inline-formula> <tex-math notation="LaTeX">p </tex-math></inline-formula> smaller. As a tamper-proof hardware assumption, <inline-formula> <tex-math notation="LaTeX">\textsf {VeloCash} </tex-math></inline-formula> uses Attested Execution Secure Processors, a formal abstraction of secure processors with attested execution functionality and Direct Anonymous Attestation to achieve anonymity for sending and receiving tickets. <inline-formula> <tex-math notation="LaTeX">\textsf {VeloCash} </tex-math></inline-formula> can detect double-spending attacks perfectly and revoke the adversary's device.]]></description><identifier>ISSN: 2169-3536</identifier><identifier>EISSN: 2169-3536</identifier><identifier>DOI: 10.1109/ACCESS.2022.3201071</identifier><identifier>CODEN: IAECCG</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>anonymity ; attested execution secure processors ; Blockchain ; Blockchains ; Costs ; Cryptocurrency ; Cryptography ; Digital currencies ; direct anonymous attestation ; micropayment ; Micropayments ; Probabilistic logic ; Processors ; Program processors ; Protocols ; Security ; Statistical analysis ; Throughput ; transferability</subject><ispartof>IEEE access, 2022, Vol.10, p.93701-93730</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2022</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-6862-2576 ; 0000-0002-3831-7965</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9864600$$EHTML$$P50$$Gieee$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,864,2102,4024,27633,27923,27924,27925,54933</link.rule.ids></links><search><creatorcontrib>Takahashi, Taisei</creatorcontrib><creatorcontrib>Higuchi, Taishi</creatorcontrib><creatorcontrib>Otsuka, Akira</creatorcontrib><title>VeloCash: Anonymous Decentralized Probabilistic Micropayments With Transferability</title><title>IEEE access</title><addtitle>Access</addtitle><description><![CDATA[Micropayments are one of the challenges in cryptocurrencies. Micropayments on the blockchain have the problem that the fee is high for the transfer amount. As a countermeasure, a method called Layer-two has been proposed to consolidate transactions outside the blockchain and improve the blockchain's throughput. As one of the existing Layer-two schemes, Decentralized Probabilistic Micropayments have been proposed. The winning amount is registered in the blockchain, and the lottery tickets are issued to be won with probability <inline-formula> <tex-math notation="LaTeX">p </tex-math></inline-formula>, which allows us to aggregate approximately <inline-formula> <tex-math notation="LaTeX">(1/p) </tex-math></inline-formula> transactions into one. Unfortunately, existing solutions do not allow for ticket transferability, and the smaller <inline-formula> <tex-math notation="LaTeX">p </tex-math></inline-formula>, the more difficult it is to use them in the real world. Here we propose <inline-formula> <tex-math notation="LaTeX">\textsf {VeloCash} </tex-math></inline-formula>, Decentralized Probabilistic Micropayments with Transferability, which preserves anonymity. By introducing tamper-proof assumptions for sending and receiving the tickets, we make <inline-formula> <tex-math notation="LaTeX">p </tex-math></inline-formula> smaller. As a tamper-proof hardware assumption, <inline-formula> <tex-math notation="LaTeX">\textsf {VeloCash} </tex-math></inline-formula> uses Attested Execution Secure Processors, a formal abstraction of secure processors with attested execution functionality and Direct Anonymous Attestation to achieve anonymity for sending and receiving tickets. <inline-formula> <tex-math notation="LaTeX">\textsf {VeloCash} </tex-math></inline-formula> can detect double-spending attacks perfectly and revoke the adversary's device.]]></description><subject>anonymity</subject><subject>attested execution secure processors</subject><subject>Blockchain</subject><subject>Blockchains</subject><subject>Costs</subject><subject>Cryptocurrency</subject><subject>Cryptography</subject><subject>Digital currencies</subject><subject>direct anonymous attestation</subject><subject>micropayment</subject><subject>Micropayments</subject><subject>Probabilistic logic</subject><subject>Processors</subject><subject>Program processors</subject><subject>Protocols</subject><subject>Security</subject><subject>Statistical analysis</subject><subject>Throughput</subject><subject>transferability</subject><issn>2169-3536</issn><issn>2169-3536</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpNkVtLAzEQhRdRUNRf4MuCz625Z-NbWa-gKF4fwyTN2pTtpibbh_rrTbtFzMuE4TtnhjlFcYbRGGOkLiZ1ff36OiaIkDElCCOJ94ojgoUaUU7F_r__YXGa0hzlV-UWl0fFy4drQw1pdllOutCtF2GVyitnXddHaP2Pm5bPMRgwvvWp97Z89DaGJawXmUjlp-9n5VuELjUubqF-fVIcNNAmd7qrx8X7zfVbfTd6eLq9rycPI0t51Y-UIFYShoThgisKwhDG1RSZRjiVEQ6C4KmVzIBFSAnLQDDWGCCCSNI4elzcD77TAHO9jH4Bca0DeL1thPilIeaVW6cpI6gxFZVcGNZUFoAoboSUVFrHmcxe54PXMobvlUu9nodV7PL6mkjMKlVhyjJFByqfIKXomr-pGOlNFnrIQm-y0LsssupsUHnn3J9CVYIJhOgvJm-ExQ</recordid><startdate>2022</startdate><enddate>2022</enddate><creator>Takahashi, Taisei</creator><creator>Higuchi, Taishi</creator><creator>Otsuka, Akira</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Micropayments on the blockchain have the problem that the fee is high for the transfer amount. As a countermeasure, a method called Layer-two has been proposed to consolidate transactions outside the blockchain and improve the blockchain's throughput. As one of the existing Layer-two schemes, Decentralized Probabilistic Micropayments have been proposed. The winning amount is registered in the blockchain, and the lottery tickets are issued to be won with probability <inline-formula> <tex-math notation="LaTeX">p </tex-math></inline-formula>, which allows us to aggregate approximately <inline-formula> <tex-math notation="LaTeX">(1/p) </tex-math></inline-formula> transactions into one. Unfortunately, existing solutions do not allow for ticket transferability, and the smaller <inline-formula> <tex-math notation="LaTeX">p </tex-math></inline-formula>, the more difficult it is to use them in the real world. Here we propose <inline-formula> <tex-math notation="LaTeX">\textsf {VeloCash} </tex-math></inline-formula>, Decentralized Probabilistic Micropayments with Transferability, which preserves anonymity. By introducing tamper-proof assumptions for sending and receiving the tickets, we make <inline-formula> <tex-math notation="LaTeX">p </tex-math></inline-formula> smaller. As a tamper-proof hardware assumption, <inline-formula> <tex-math notation="LaTeX">\textsf {VeloCash} </tex-math></inline-formula> uses Attested Execution Secure Processors, a formal abstraction of secure processors with attested execution functionality and Direct Anonymous Attestation to achieve anonymity for sending and receiving tickets. <inline-formula> <tex-math notation="LaTeX">\textsf {VeloCash} </tex-math></inline-formula> can detect double-spending attacks perfectly and revoke the adversary's device.]]></abstract><cop>Piscataway</cop><pub>IEEE</pub><doi>10.1109/ACCESS.2022.3201071</doi><tpages>30</tpages><orcidid>https://orcid.org/0000-0001-6862-2576</orcidid><orcidid>https://orcid.org/0000-0002-3831-7965</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | anonymity attested execution secure processors Blockchain Blockchains Costs Cryptocurrency Cryptography Digital currencies direct anonymous attestation micropayment Micropayments Probabilistic logic Processors Program processors Protocols Security Statistical analysis Throughput transferability |
| title | VeloCash: Anonymous Decentralized Probabilistic Micropayments With Transferability |
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