发明名称 Document authentication combining digital signature verification and visual comparison
摘要 A document authentication system and method combine digital and non-electronic (or visual) authentication methodologies in an integrated, unified manner. As well as providing indicia of digital authentication, the invention generates a physical artifact that can be validated by unaided human visual perception. The present invention thus provides an opportunity to improve the level of trust in authentication of documents, while preserving the advantages of both traditional and digital authentication mechanisms.
申请公布号 US8037310(B2) 申请公布日期 2011.10.11
申请号 US20040000635 申请日期 2004.11.30
申请人 RICOH CO., LTD. 发明人 WOLFF GREGORY J.
分类号 H04L9/32 主分类号 H04L9/32
代理机构 代理人
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