| 发明名称 |
METHOD AND APPARATUS FOR DIGITALLY SIGNING A FILE |
| 摘要 |
A method is provided for digitally signing a file that contains hierarchically structured data objects, the method including the steps of: generating at least one signature data object at the file level, calculating a digital signature for data from the file, and writing the calculated digital signature into the generated signature data object. |
| 申请公布号 |
US2016294561(A1) |
申请公布日期 |
2016.10.06 |
| 申请号 |
US201415036832 |
申请日期 |
2014.10.21 |
| 申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
BÄSE GERO;WENG WENRONG |
| 分类号 |
H04L9/32;H04L29/06 |
主分类号 |
H04L9/32 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for digitally signing a file, that has hierarchically structured data objects, comprising:
(a) generating at least one signature data object at file level; (b) computing a digital signature for data of the file (D); and (c) writing the computed digital signature to the at least one generated signature data object;wherein the file to be signed is signed multiple times, and wherein for every signing, a signature data object is first of all generated at file level and then a digital signature is computed for data of the file and is written to the at least one generated signature data object. |
| 地址 |
München DE |
