发明名称 |
CONTROLLING ACCESS TO A RESOURCE BY A PROGRAM USING A DIGITAL SIGNATURE |
摘要 |
A computer system has a resource, a verification unit and an execution engine for running a body of program code having an associated signature. A cryptographic key is associated with the resource and when the code is to be loaded into the execution engine a verification operation is run on the signature using the cryptographic key associated with the resource. The execution engine is separate from the resource and when access to the resource is required by the code in the execution engine a further verification operation is conducted on the signature using the cryptographic key associated with the resource. Access to the resource by the code depends upon the result of the verification operation. |
申请公布号 |
PT1257892(E) |
申请公布日期 |
2009.06.09 |
申请号 |
PT20010905927T |
申请日期 |
2001.02.20 |
申请人 |
NCIPHER CORPORATION LIMITED |
发明人 |
VAN SOMEREN, NICKO |
分类号 |
G06F1/00;G06F12/14;G06F21/54;G06F21/62;G09C1/00;H04L9/08;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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