发明名称 |
Secure anonymous verification, generation and/or proof of ownership of electronic receipts |
摘要 |
A method, apparatus and system is provided for secure anonymous proof of ownership of electronic receipts, wherein a sender sends a first message including a transaction request and referencing an owner of a receipt to be generated to a first addressee. The first addressee returns a signed receipt including the reference and details for what the receipt has been given. The sender sends a signed second message including the receipt to a second addressee. The second addressee obtains a public signature verification key on the basis of the reference to the owner of the receipt and authenticates the second message. A major advantage of the invention is that in a pseudonymous or anonymous transaction based system it is now possible to remain anonymous or pseudonymous when presenting electronic receipts, while securely proving ownership of the receipt. |
申请公布号 |
US2002049681(A1) |
申请公布日期 |
2002.04.25 |
申请号 |
US20010899444 |
申请日期 |
2001.07.05 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HERREWEGHEN ELSIE VAN |
分类号 |
G06Q20/00;H04L9/32;(IPC1-7):H04K1/00;G06F17/60 |
主分类号 |
G06Q20/00 |
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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