Then, for each round i∈[0,29], the round function is implemented as follows: X1←X1⊕F X0)⊕rk2i, X3←X3⊕F X2)⊕rk2i+1, X0∥X1∥X2∥X3←RP X0∥X1∥X2∥X3), where the function F is showed in Fig. 8, and the function RP represents the round permutation operation (x0,…1,x7x7)←(x2,x7,x4,x1,x6,x3,x0,x5) in which each of the x i, i∈[0,7] is eight bits to divide the 64-bit intermediate value.
The bit with intermediate reamer has less damage to sidewall.
In the previous section, we described a basic attack that, on each experiment, induces a fault on a single bit of intermediate state of the last round.
The first attack is a basic attack which induces a fault on only one bit of intermediate states, and we can obtain the last subkey of the block cipher, given 48 faulty cipher texts on average.
In this section, we introduce a basic DFA attack against PRESENT-80 which is based on the injection of a fault on only one bit of intermediate states at the beginning of the last round's S-box layer.
Methods: Based on BIT key intermediates (Fig. 1a), a small series of novel fluorinated BIT derivatives was successfully prepared (overall in 7-10 steps) and the affinities towards PDE2A and other PDE subtypes were estimated.
One advantage of the proposed MPCM algorithm versus PCM is the possibility of compressing intermediate bit rates (nonintegers) due to the different numbers of bits removed in a set of pixels (l 0 ≠ l 1).
According to the results, the effective transport capacity is saturated for intermediate bit rate values.
For the first attack, we assume that the fault occurs on only one bit of the intermediate states.
From the corresponding pixels in these three images the bits for the intermediate watermark are generated.
Nevertheless, this implies that, even though the final precision (for the integer part) is 11 bits again, the intermediate calculations require a higher precision.
