发明名称 |
Electronic group signature method with revocable anonymity, equipment and programs for implementing the method |
摘要 |
A ring-signature scheme is adapted so that at least one of the variability parameter values used is an identity trace of the anonymous signatory, determined as a function of anonymity withdrawal data stored and held secret by an anonymity withdrawal entity in connection with an identification of the anonymous signatory. This provides a subsequent controlled capacity of withdrawing the anonymity of the signatory, either by an authority, or by the signatory himself.
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申请公布号 |
US2004260926(A1) |
申请公布日期 |
2004.12.23 |
申请号 |
US20040848943 |
申请日期 |
2004.05.19 |
申请人 |
FRANCE TELECOM |
发明人 |
ARDITTI MODIANO DAVID;FRISCH LAURENT;MOUTON DIMITRI |
分类号 |
H04L9/32;(IPC1-7):H04L9/00 |
主分类号 |
H04L9/32 |
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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