发明名称 |
Method and apparatus for controlling access to confidential data |
摘要 |
A method and apparatus for controlling access to confidential data are disclosed. The disclosed apparatus includes a non-volatile memory for storing data and a logic circuit for controlling access to the data contained in the memory. The logic circuit selectively accesses the memory to determine whether at least a portion of the data contained in the memory comprises confidential data by analyzing a property inherent in the accessed data. The disclosed method includes the steps of: defining a predetermined section of the programmable memory as a repository for confidential data; addressing the predetermined section of the programmable memory; calculating a number of data blocks in the predetermined section having a predetermined characteristic; comparing the calculated number to a threshold value; and defining the memory as including confidential data in the predetermined section if the calculated number has a predetermined relationship to the threshold value. |
申请公布号 |
AU9582298(A) |
申请公布日期 |
2000.04.17 |
申请号 |
AU19980095822 |
申请日期 |
1998.09.25 |
申请人 |
HUGHES ELECTRONICS CORPORATION |
发明人 |
ROBERT D. CASSAGNOL;DOUGLAS M DILLON;DAVID S. KLOPER;SANDRA J. WEBER;BRANDON E. BAUTZ |
分类号 |
G06F1/00;G06F21/62;G06F21/79 |
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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