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how can we get 4*4 matrix from 4 row matrix? how can particular column elements selected from 4*4 matrix? How inverse matrix calculated by using LU decomposition for 4*4 matrix?
as a part of my project on Hill Cipher algorithm .
Actually i want take 4-bit binary vector as input. by taking four such vector create a 4*4 matrix from it,then select elements from column and multiply with another 4*4 binary matrix. thanks a lot!!
type t_matrix is array (0 to 3) of bit_vector(0 to 3);
signal s_matrix : t_matrix := (others => (others => '0'));function pivot_matrix(input_matrix : t_matrix) return t_matrix is
variable output_matrix : t_matrix;
begin
return output_matrix;
end function;
