发明名称 |
CONTRACT AGREEMENT METHOD, AGREEMENT VERIFICATION METHOD, CONTRACT AGREEMENT SYSTEM, AGREEMENT VERIFICATION DEVICE, CONTRACT AGREEMENT DEVICE, CONTRACT AGREEMENT PROGRAM AND AGREEMENT VERIFICATION PROGRAM |
摘要 |
The present invention leaves a contract trail in a block chain by using a simple method while obtaining agreement between relevant parties and also retaining the format of one electronic signature per single transaction. In addition, the present invention maintains reliability while leaving a contract trail in a block chain by using a simple method while obtaining agreement between relevant parties and also retaining the format of one electronic signature per single transaction. The transactions of an issuer side terminal 1 relating to a contract agreement, an agreeing party side terminal 3a and an agreeing party side terminal 3b are chained, and the last agreeing party side terminal 3b generates a transaction directed to the issuer side terminal 1 of the contract issuing source. In addition, the terminals generate, in advance, a key pair for encoding the contract, and send the encoding keys to the terminal of a sender of the transaction. The sender's terminal uses the encoding keys of a receiver of the transaction to encode the contract to be included in the transaction of the own terminal user. |
申请公布号 |
WO2017010455(A1) |
申请公布日期 |
2017.01.19 |
申请号 |
WO2016JP70415 |
申请日期 |
2016.07.11 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
WATANABE, Hiroki;AKUTSU, Akihito;MIYAZAKI, Yasuhiko;NAKADAIRA, Atsushi;FUJIMURA, Shigeru |
分类号 |
G06Q20/38;G06F21/33;G06Q10/06;H04L9/32 |
主分类号 |
G06Q20/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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