发明名称 |
COMMUNICATION SYSTEM, METHOD AND DEVICE WITH LIMITED ENCRYPTION KEY RETRIEVAL |
摘要 |
A device for encrypted communication with external entities is configured to frustrate side channel attacks attempting to determine an encryption key. The device has a first memory, an encryption key stored in the first memory and a one-way function for application to the encryption key. During use, the encryption key is retrieved from the first memory prior to application to the one-way function and the device is configured to limit the number of times the encryption key is allowed to be retrieved from the non-volatile memory to a pre-determined threshold. |
申请公布号 |
EP2520044(B1) |
申请公布日期 |
2016.11.09 |
申请号 |
EP20100819728 |
申请日期 |
2010.09.20 |
申请人 |
MEMJET TECHNOLOGY LIMITED |
发明人 |
STARR, MATTHEW RAYMOND;PRICE-WHITE, STEPHEN CAMERON |
分类号 |
H04L9/00;H04L9/08;H04L9/32 |
主分类号 |
H04L9/00 |
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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