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arXiv 2106.04876cs.CRcs.ITcs.LGmath.IT
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Recovering AES Keys with a Deep Cold Boot Attack

Tel Aviv University(特拉维夫大学);Facebook AI Research(脸书人工智能研究院)

Itamar Zimerman, Eliya Nachmani, Lior Wolf

英文摘要:

Cold boot attacks inspect the corrupted random access memory soon after the power has been shut down. While most of the bits have been corrupted, many bits, at random locations, have not. Since the keys in many encryption schemes are being expanded in memory into longer keys with fixed redundancies, the keys can often be restored. In this work, we combine a novel cryptographic variant of a deep error correcting code technique with a modified SAT solver scheme to apply the attack on AES keys. Even though AES consists of Rijndael S-box elements, that are specifically designed to be resistant to linear and differential cryptanalysis, our method provides a novel formalization of the AES key scheduling as a computational graph, which is implemented by a neural message passing network. Our results show that our methods outperform the state of the art attack methods by a very large margin.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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