发明名称 |
VERFAHREN UND SYSTEM ZUR BENÜTZUNG EINES UNGESICHERTEN KRYPTO-BESCHLEUNIGERS |
摘要 |
A method and system for performing cryptographic calculations on a bitstring using secret information. A cipher key is manipulated to obtain a modified cipher key. An indicator word is generated that corresponds to the modified cipher key and includes a plurality of indicator bits. A first product is computed with an insecure processor as a function of the bitstring and the modified cipher key. A second product is computed with a secure processor as a function of the bitstring and the indicator. A final product is then computed as a function of the first and second products. |
申请公布号 |
AT292301(T) |
申请公布日期 |
2005.04.15 |
申请号 |
AT20010979279T |
申请日期 |
2001.09.24 |
申请人 |
ERICSSON INC. |
发明人 |
DENT, PAUL;KORNBY, MICHAEL;SMEETS, BEN |
分类号 |
G09C1/00;G06F7/72;(IPC1-7):G06F7/72 |
主分类号 |
G09C1/00 |
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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