发明名称 |
Image forming apparatus for generating electronic signature |
摘要 |
An image forming apparatus for attaching an electronic signature to image data read from a paper document is disclosed. Validity of a first public key certificate that certifies a first signature key is determined. A first electronic signature-for the image data is generated by using the first signature key. The first electronic signature is prevented from being generated in response to an event that it is determined that the first public key certificate is invalid.
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申请公布号 |
US2007016783(A1) |
申请公布日期 |
2007.01.18 |
申请号 |
US20060484073 |
申请日期 |
2006.07.10 |
申请人 |
SAITO SATOSHI;KANAI YOICHI |
发明人 |
SAITO SATOSHI;KANAI YOICHI |
分类号 |
H04L9/00 |
主分类号 |
H04L9/00 |
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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