Fig. 1From: Efficient electro-magnetic analysis of a GPU bitsliced AES implementationTransposition in bitsliced AES implementation. On the left side, it shows the normal byte ordering of 32 128-bit plaintext block layout in registers. On the right side, it is the bit-oriented transposed bitsliced ordering layout in registers. The transformation from the left to the right and the reverse are made only once at the beginning of encryption and at the end of encryption, respectivelyBack to article page