发明名称 |
IMPROVED DIGITAL SIGNATURE |
摘要 |
The invention relates to the generation of digital signatures by the use of which the legally binding nature of a digital signature is enhanced. For this, an expanded digital signature is created which, in addition to the hash, contains other information, in particular information identifying the hardware and software environment used in generating the signature.
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申请公布号 |
CA2290170(C) |
申请公布日期 |
2005.06.14 |
申请号 |
CA19992290170 |
申请日期 |
1999.11.22 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HAMANN, ERNST-MICHAEL;KREYSS, JUTTA;VASUDEVAN, NARAYANAN |
分类号 |
G06F1/00;G06F21/00;G07F7/10;H04L9/32;(IPC1-7):H04L9/32 |
主分类号 |
G06F1/00 |
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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