/// <summary>
/// 构造函数
/// </summary>
public DESAlgorithm()
{
// 初始化轮函数
RoundFunction = new DESRoundFunction(
DESData.RawSBox.Select(array => new SubstitutionBox(array, 4)).ToArray(),
new Permutator(DESData.EMatrix),
new Permutator(DESData.PBox)
);
// 初始化各种置换函数
KeyIP = new Permutator(DESData.InitialKeyPermutation);
DataIP = new Permutator(DESData.InitialDataPermutation);
SubKeyPC = new Permutator(DESData.SubKeyPC);
DataIPRev = DataIP.GetInversePermutator();
// 初始化左移位数
ShiftArray = DESData.KeyShiftArray.Clone() as int[];
roundCount = ShiftArray.Length;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="roundS">输入的S盒</param>
/// <param name="roundE">输入的E矩阵</param>
/// <param name="roundP">输入的P盒</param>
public DESRoundFunction(SubstitutionBox[] roundS, Permutator roundE, Permutator roundP)
{
S = roundS;
EMatrix = roundE;
PBox = roundP;
}
