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MD-64 is a 64-bit block cipher with a 128-bit secret key and is based on data-dependent operations for the fast hardware performance. MD-64 is suitable to applications in resource constrained environments such as wireless sensor networks. In this paper, we propose a related-key amplified boomerang attack on the full-round MD-64. Our attack requires 2^{95} MD-64 encryptions with 2^{43.1} related-key...
In this paper, we show that CIKS-128 and CIKS-128H are vulnerable to related-key differential attacks. We first describe how to construct their full-round related-key differential characteristics with high probabilities and then we exploit them to break the full-round CIKS-128 and CIKS-128H with 244,and 248 data and time complexities, respectively. These woks are corrections of Lee et al.'s results...
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