public StringBuilder DecodingUA(StringBuilder inputText, GrilleKey key)
{
StringBuilder res = new StringBuilder();
List <StringBuilder> blockStringBuilders = TextPreparationDecoding(inputText);
foreach (StringBuilder blockStringBuilder in blockStringBuilders)
{
res.Append(FullStringReverse(blockStringBuilder, InitialTemplateMatrix(key)));
}
return(res);
}
private List <int> InitialTemplateMatrix(GrilleKey key)
{
List <List <int> > res = MatrixHelpCardoneAlgoritm.ZeroMatrix;
List <List <int> > rotateMatrix = key.Key;
for (int i = 0; i < res.Count; i++)
{
List <List <int> > temp =
MatrixService.VectorInMatrix(rotateMatrix, MatrixHelpCardoneAlgoritm.InputTextMatrix[i]);
res = MatrixService.Addition(temp, res);
if (i % 2 == 0)
{
rotateMatrix = MatrixService.Multiply(rotateMatrix, MatrixHelpCardoneAlgoritm.InvertingMatrix);
}
else
{
rotateMatrix = MatrixService.Multiply(MatrixHelpCardoneAlgoritm.InvertingMatrix, rotateMatrix);
}
}
return(MatrixService.ToVector(res));
}