发明名称 |
A TWEAKABLE ENCRYPTION MODE FOR MEMORY ENCRYPTION WITH PROTECTION AGAINST REPLAY ATTACKS |
摘要 |
A method and apparatus for protecting against hardware attacks on system memory is provided. A mode of operation for block ciphers enhances the standard XTS-AES mode of operation to perform memory encryption by extending a tweak to include a "time stamp" indicator. An incrementing mechanism using the "time stamp" indicator generates a tweak which separates different contexts over different times such that the effect of "Type 2 replay attacks" is mitigated. |
申请公布号 |
EP2619705(A4) |
申请公布日期 |
2015.01.21 |
申请号 |
EP20110827696 |
申请日期 |
2011.09.24 |
申请人 |
INTEL CORPORATION |
发明人 |
GUERON, SHAY;GERZON, GIDEON;ANATI, ITTAI;DOWECK, JACOB;MAOR, MOSHE |
分类号 |
G06F12/14;G06F21/52;G06F21/64 |
主分类号 |
G06F12/14 |
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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