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A TWEAKABLE ENCRYPTION MODE FOR MEMORY ENCRYPTION WITH PROTECTION AGAINST REPLAY ATTACKS
A TWEAKABLE ENCRYPTION MODE FOR MEMORY ENCRYPTION WITH PROTECTION AGAINST REPLAY ATTACKS
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机译:具有针对重放攻击的保护的内存加密的可调整加密模式
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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.
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