2024
DOI: 10.3390/sym16060664
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A Ciphertext Reduction Scheme for Garbling an S-Box in an AES Circuit with Minimal Online Time

Xu Yan,
Bin Lian,
Yunhao Yang
et al.

Abstract: The secure computation of symmetric encryption schemes using Yao’s garbled circuits, such as AES, allows two parties, where one holds a plaintext block m and the other holds a key k, to compute Enc(k,m) without leaking m and k to one another. Due to its wide application prospects, secure AES computation has received much attention. However, the evaluation of AES circuits using Yao’s garbled circuits incurs substantial communication overhead. To further improve its efficiency, this paper, upon observing the spe… Show more

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