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In this paper, we propose a hybrid power model that includes the power consumption of not only the registers but also part of the combinational logic. By doing knownkey analysis with this hybrid model, power side-channel leakage caused by correct keys can be detected. In experiment, PRINTcipher and DES algorithms were chosen as analysis targets and combinational logic s-box unit was selected to build...
SMS4 is the first official released commercial cryptographic algorithm. It provides unified standards for designing and using local area wireless network product. The general DPA attack is not suitable for SMS4 owing to the ample random diffusion of the round output. This article proposed a new power analysis method for SMS4 to reduce the diffusion by chosen plaintext. Two means - Hamming distance...
In this paper, we will present a block cipher circuit design against Power Analysis. This design consists of usual masking and hiding method. For XOR, permutation and other linear layer, masking method of protection is used, but for S-box and other non-linear layer, hiding method is used in the reason that masking requires a lot of hardware consumption. We accomplished hardware implementation and...
In this paper we discuss correlation power analysis attack against stream cipher MICKEY v2. In such attacks, we use Hamming-Distance model to simulate the power consumption. Hamming-Distance model is a more accurate description to power consumption than other models such as Hamming-Weight, bit model etc. Generally, Hamming-Distance model is used to map the transitions that occur at the cells' outputs...
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