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Secret Key Reconstruction Using Round Addtion DFA against Feistel Block Ciphers
D - Abstracts of IEICE TRANSACTIONS on Information and Systems (Japanese Edition)
Publication Date: 2018/07/01
Online ISSN: 1881-0225
Type of Manuscript: PAPER
differential fault analysis (DFA), operation skip, round addition, Feistel-type block cipher, lightweight block cipher, side-channel attack,
Full Text(in Japanese): PDF(715.9KB)
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In this paper, the round addition differential fault analysis (DFA) using operation skip for Feistel-type block ciphers is presented. This attack method is based on supplying abnormal voltage to cipher-implemented microcontrollers without depackaging and microscopic operations. It is shown that only one correct ciphertext and one or two faulty ciphertexts are required to reconstruct the secret key.