发明名称 |
White-box cryptographic system with configurable key using intermediate data modification |
摘要 |
A white-box cryptographic system (600) is presented for performing a key-dependent cryptographic operation, such as AES. The system comprises a network of a plurality of look-up tables (640) arranged for collectively performing the cryptographic operation, the network being adapted for a particular cryptographic key. By sending a key substitute (664) which represents to the network a further cryptographic key a key translation unit can arrange the effect of the network on the cryptographic operation such that is adapted for a further cryptographic key. In this way the system can be updated to use the further key instead of the particular key. |
申请公布号 |
US8625794(B2) |
申请公布日期 |
2014.01.07 |
申请号 |
US201013378891 |
申请日期 |
2010.06.17 |
申请人 |
MICHIELS WILHELMUS PETRUS ADRIANUS JOHANNUS;IRDETO CORPORATE B.V. |
发明人 |
MICHIELS WILHELMUS PETRUS ADRIANUS JOHANNUS |
分类号 |
H04K1/00 |
主分类号 |
H04K1/00 |
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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