cryptography

The detailed linear trails of CHAM are given.

In each file, you can find a linear trail and the correlation of it.

In a file named "LT_CHAM_64_xR_y.txt", an x-round linear trail with correlation 2^{-y} of CHAM with a block size of 64 bits is given.

In total, there are 44 linear trails of CHAM with a block size of 64 bits.

In a file named "LT_CHAM_128_xR_y.txt", an x-round linear trail with correlation 2^{-y} of CHAM with a block size of 128 bits is given.

In total, there are 54 linear trails of CHAM with a block size of 128 bits.

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The data is a truth table of a 22-variable 4-resilient Boolean function with nonlinearity 2095616.

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