发明名称 |
METHOD AND DEVICE FOR GUARANTEEING A CALCULATION IN A CRYPTOGRAPHIC ALGORITHM |
摘要 |
The invention relates to a method for securing a calculation in a cryptographic algorithm, whereby the calculation receives input data in order to produce output data, wherein input data is initially prepared for calculation (10). The calculation is then carried out (12) in order to obtain the output data of the calculation. After the calculation has been carried out, monitoring (14) occurs as to whether the input data was modified during the calculation, using a monitoring algorithm which is different from the calculation. If monitoring reveals that the input data was modified during the calculation, reproduction of the output data is suppressed (16). |
申请公布号 |
WO03034649(A3) |
申请公布日期 |
2004.04.01 |
申请号 |
WO2002EP11523 |
申请日期 |
2002.10.15 |
申请人 |
INFINEON TECHNOLOGIES AG;FISCHER, WIELAND;SEIFERT, JEAN-PIERRE |
发明人 |
FISCHER, WIELAND;SEIFERT, JEAN-PIERRE |
分类号 |
G06F7/72;G06F17/10 |
主分类号 |
G06F7/72 |
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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