JP7540788B2 - ゼロ知識証明を有するブロックチェーン基盤の電子投票システムおよび方法 - Google Patents
ゼロ知識証明を有するブロックチェーン基盤の電子投票システムおよび方法 Download PDFInfo
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- JP7540788B2 JP7540788B2 JP2023145738A JP2023145738A JP7540788B2 JP 7540788 B2 JP7540788 B2 JP 7540788B2 JP 2023145738 A JP2023145738 A JP 2023145738A JP 2023145738 A JP2023145738 A JP 2023145738A JP 7540788 B2 JP7540788 B2 JP 7540788B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3218—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C13/00—Voting apparatus
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- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3218—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
- H04L9/3221—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs interactive zero-knowledge proofs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/46—Secure multiparty computation, e.g. millionaire problem
- H04L2209/463—Electronic voting
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Description
110:通信網
120:ブロックチェーン電子投票装置
130:管理者端末装置
500:通信インターフェース部
510:制御部
520:ゼロ知識証明電子投票部
530:保存部
Claims (10)
- 使用者がそれぞれ所持して電子投票を遂行する投票者端末装置と通信する通信インターフェース部;および前記投票者端末装置に一つの本物の投票キーと少なくとも一つの偽物の投票キーを発給して電子投票を進行させ、前記電子投票の進行時に前記投票者端末装置から提供する秘密値を各投票に固有番号で付与し、前記本物の投票キーおよび前記秘密値に基づいて前記電子投票の真偽有無の判断および検証動作を遂行する制御部;を含み、前記制御部は、前記偽物の投票キーで投票が進行される場合、投票の暗号文を0に復号化する復号化結果に基づいて前記電子投票の集計結果に未反映する、ゼロ知識証明を有するブロックチェーン基盤の電子投票装置。
- 前記制御部は、前記投票者端末装置で遂行される各投票ごとに付与される第1秘密値および第2秘密値に基づいて前記投票者端末装置で進行された電子投票を追跡する、請求項1に記載のゼロ知識証明を有するブロックチェーン基盤の電子投票装置。
- 前記制御部は、zk-SNARK(zero-knowledge Succinct Non-interactiveARgument of Knowledge)を使って前記本物の投票キーまたは前記偽物の投票キーのゼロ知識証明を遂行して前記電子投票の真偽有無を判断する、請求項1に記載のゼロ知識証明を有するブロックチェーン基盤の電子投票装置。
- 前記制御部は、前記電子投票の集計が完了すれば、有権者の前記投票者端末装置に前記集計に使われた暗号文と集計結果を公開して前記有権者が集計結果を検証し、各有権者が自身の投票結果を検証するようにする、請求項1に記載のゼロ知識証明を有するブロックチェーン基盤の電子投票装置。
- 前記制御部は、前記投票者端末装置と通信して前記本物の投票キーの発給の真偽を確認し、前記投票者端末装置と非相互通信によって前記偽物の投票キーを本物の投票キーに偽装させる、請求項1に記載のゼロ知識証明を有するブロックチェーン基盤の電子投票装置。
- 通信インターフェース部が、使用者がそれぞれ所持して電子投票を遂行する投票者端末装置と通信する段階;および制御部が、前記投票者端末装置に一つの本物の投票キーと少なくとも一つの偽物の投票キーを発給して電子投票を進行させ、前記電子投票の進行時に前記投票者端末装置から提供する秘密値を各投票に固有番号で付与し、前記本物の投票キーおよび前記秘密値に基づいて前記電子投票の真偽有無の判断および検証動作を遂行する段階;を含み、前記制御部が、前記偽物の投票キーで投票が進行される場合、投票の暗号文を0に復号化する復号化結果に基づいて前記電子投票の集計結果に未反映する段階;をさらに含む、ゼロ知識証明を有するブロックチェーン基盤電子投票装置の駆動方法。
- 前記制御部が、前記投票者端末装置で遂行される各投票ごとに付与される第1秘密値および第2秘密値に基づいて前記投票者端末装置で進行された電子投票を追跡する段階;をさらに含む、請求項6に記載のゼロ知識証明を有するブロックチェーン基盤電子投票装置の駆動方法。
- 前記真偽有無を判断する段階は、zk-SNARKを使って前記本物の投票キーまたは前記偽物の投票キーのゼロ知識証明を遂行して前記電子投票の真偽有無を判断する、請求項6に記載のゼロ知識証明を有するブロックチェーン基盤電子投票装置の駆動方法。
- 前記電子投票の集計が完了すれば、有権者の前記投票者端末装置に前記集計に使われた暗号文と集計結果を公開する段階;および前記有権者が集計結果を検証し、各有権者が自身の投票結果を検証するようにする段階;をさらに含む、請求項6に記載のゼロ知識証明を有するブロックチェーン基盤電子投票装置の駆動方法。
- 前記投票者端末装置と通信して前記本物の投票キーの発給の真偽を確認する段階;および前記投票者端末装置と非相互通信によって前記偽物の投票キーを本物の投票キーに偽装させる段階;をさらに含む、請求項6に記載のゼロ知識証明を有するブロックチェーン基盤の電子投票装置の駆動方法。
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020230015970A KR102595354B1 (ko) | 2023-02-07 | 2023-02-07 | 영지식증명을 갖는 블록체인 기반의 전자투표시스템 및 방법 |
| KR10-2023-0015970 | 2023-02-07 |
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| JP2024112274A JP2024112274A (ja) | 2024-08-20 |
| JP7540788B2 true JP7540788B2 (ja) | 2024-08-27 |
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| US (1) | US20240265761A1 (ja) |
| EP (1) | EP4415307A1 (ja) |
| JP (1) | JP7540788B2 (ja) |
| KR (1) | KR102595354B1 (ja) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004260508A (ja) | 2003-02-26 | 2004-09-16 | Hitachi Ltd | 暗号化データ送信システム |
| JP2019053712A (ja) | 2017-09-15 | 2019-04-04 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカPanasonic Intellectual Property Corporation of America | 電子投票システム、及び、制御方法 |
| US20210304544A1 (en) | 2020-03-27 | 2021-09-30 | Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) | Electronic voting system and method based on homogeneous cryptography |
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| KR20030079844A (ko) * | 2003-08-19 | 2003-10-10 | 장시영 | 선거결과에서 자신의 선택이 반영 되었는지를 확인할 수있는 비밀성이 유지되는 전자투표시스템 |
| WO2005093671A2 (en) * | 2004-03-25 | 2005-10-06 | Cryptomathic A/S | Electronic voting systems |
| KR100856007B1 (ko) * | 2006-09-06 | 2008-09-02 | 성균관대학교산학협력단 | 암호화 기기의 동작 검증 방법 및 이를 이용한 전자투표검증 시스템 |
| US8738701B2 (en) * | 2012-02-28 | 2014-05-27 | Microsoft Corporation | Arbitration of disk ownership in a storage pool |
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- 2023-02-07 KR KR1020230015970A patent/KR102595354B1/ko active Active
- 2023-09-06 EP EP23195741.6A patent/EP4415307A1/en active Pending
- 2023-09-06 US US18/242,655 patent/US20240265761A1/en active Pending
- 2023-09-08 JP JP2023145738A patent/JP7540788B2/ja active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004260508A (ja) | 2003-02-26 | 2004-09-16 | Hitachi Ltd | 暗号化データ送信システム |
| JP2019053712A (ja) | 2017-09-15 | 2019-04-04 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカPanasonic Intellectual Property Corporation of America | 電子投票システム、及び、制御方法 |
| US20210304544A1 (en) | 2020-03-27 | 2021-09-30 | Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) | Electronic voting system and method based on homogeneous cryptography |
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| Publication number | Publication date |
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| KR102595354B1 (ko) | 2023-10-30 |
| JP2024112274A (ja) | 2024-08-20 |
| EP4415307A1 (en) | 2024-08-14 |
| US20240265761A1 (en) | 2024-08-08 |
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