发明名称 |
Structured document signature device, structured document adaptation device and structured document verification device |
摘要 |
A structured document signature device includes an adaptation policy associator configured to associate each element forming a structured document with an adaptation policy indicating an action which can be adapted to a child element of the element or a value of the element; a hash tree constructor configured to insert a hash value of the child element of the element or a hash value of the value of the element into the structured document as an attribute value of the element, and to construct a hash tree including the hash value; a digital signature adder configured to add a digital signature to a root of the hash tree and the adaptation policy; and an output configured to output the structured document and the digital signature.
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申请公布号 |
US2005063545(A1) |
申请公布日期 |
2005.03.24 |
申请号 |
US20040942866 |
申请日期 |
2004.09.17 |
申请人 |
NTT DOCOMO, INC |
发明人 |
FUJIMOTO HIROSHI;SUZUKI TAKASHI;NAKAYAMA TAKEHIRO;TAKESHITA ATSUSHI |
分类号 |
G06F17/21;G06F21/00;H04L9/32;(IPC1-7):H04L9/00 |
主分类号 |
G06F17/21 |
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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