发明名称 |
Kerfi fyrir yfirfærslu verðmæta |
摘要 |
A value transfer system using integrated circuit cards for exchanging electronic cash in off-line transactions employs cryptographically secure message protocols. Cards are loaded each with two schemes from a series and interaction between cards determines and uses the oldest scheme shared by the cards, causing one card to switch schemes irrevocably if that common scheme is its second scheme. In this way, a switch to a new scheme can migrate through the system.
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申请公布号 |
IS4634(A) |
申请公布日期 |
1997.12.11 |
申请号 |
IS19970004634 |
申请日期 |
1997.12.11 |
申请人 |
MONDEX INTERNATIONAL LIMITED |
发明人 |
DAVID BARRINGTON EVERETT;JOHN VINER |
分类号 |
G06Q10/00;G06Q20/00;G06Q20/34;G06Q20/38;G06Q40/00;G07F7/08;G07F7/10;G09C1/00;G09C3/00;(IPC1-7):G07F7/10 |
主分类号 |
G06Q10/00 |
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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