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xor_columns

aes::backends::soft::fixslice::utils

Function xor_columns 

Source 
pub(super) fn xor_columns<W: Word>(
    rkeys: &mut [W],
    offset: usize,
    idx_xor: usize,
    idx_ror: u32,
)
Expand description

XOR the columns after the S-box during the key schedule round function.

The idx_xor parameter refers to the index of the previous round key involved in the XOR computation (should be 8 and 16 for AES-128 and AES-256, respectively).

The idx_ror parameter refers to the rotation value, which varies between the different key schedules.