private string DEC_Step1(System.Collections.Generic.List <int> tmp)
{
System.Collections.Generic.Dictionary <int, char> map = new Dictionary <int, char>();
int key = 0;
int i = 0;
for (i = 0; i < tmp.Count; i++)
{
if (tmp[i] == 0)
{
break;
}
}
UniKey k = new UniKey(1, i, new Key(__key));
for (int j = 0; j < i; j++)
{
map.Add(k.Gen(), CONVERT.sym(tmp[j]));
}
string res = "";
for (int j = i + 1; j < tmp.Count; j++)
{
if (tmp[j] == 0)
{
break;
}
res += map[tmp[j]];
}
return(res);
}
private List <int> DEC_Step5(string str)
{
List <int> res = new List <int>();
string tmp = str[0] + "" + str[1];
_map_C = CONVERT.HexToByte(tmp);
int k = 0;
int ras = (str.Length - 2) / 2;
if (ras % 4 != 0)
{
throw new Exception();
}
byte[] bs = new byte[ras];
for (int i = 2; i < str.Length; i += 2)
{
tmp = str[i] + "" + str[i + 1];
bs[k++] = CONVERT.HexToByte(tmp);
}
for (int i = 0; i < ras; i += 4)
{
res.Add(BitConverter.ToInt32(bs, i));
}
return(res);
}
private System.Collections.Generic.List <int> ENC_Step1(string str)
{
System.Collections.Generic.List <int> res = new List <int>();
System.Collections.Generic.Dictionary <char, int> map = new Dictionary <char, int>();
for (int i = 0; i < str.Length; i++)
{
if (!map.ContainsKey(str[i]))
{
map.Add(str[i], 0);
}
}
_map_C = map.Count;
UniKey k = new UniKey(1, map.Count, _key);
for (int i = 0; i < map.Count; i++)
{
KeyValuePair <char, int> t = map.ElementAt(i);
int tmo = k.Gen();
map[t.Key] = tmo;
res.Add(CONVERT.ord(t.Key));
}
res.Add(0);
for (int i = 0; i < str.Length; i++)
{
res.Add(map[str[i]]);
}
return(res);
}
private int Step3_Get_Key()
{
int res = 1;
for (int i = 0; i < __key.Length; i++)
{
res *= CONVERT.ord(__key[i]);
}
return(res);
}
private string ENC_Step5(List <int> l)
{
string res = CONVERT.ToHex(Convert.ToByte(_map_C));
for (int i = 0; i < l.Count; i++)
{
byte[] t = System.BitConverter.GetBytes(l[i]);
for (int j = 0; j < t.Length; j++)
{
res += CONVERT.ToHex(t[j]);
}
}
return(res);
}
public int Gen()
{
if (_pos >= _Key.Length)
{
_pos = 0;
}
int tmp = _prev * _num * CONVERT.ord(_Key[_pos]) + _pos;
if (tmp < 0)
{
tmp *= -1;
}
_prev = tmp;
_num++;
_pos++;
return(tmp);
}
public static string ToHex(byte b)
{
string res = CONVERT.ToHexC(b / 16).ToString() + CONVERT.ToHexC(b % 16);
return(res);
}
public static byte HexToByte(string str)
{
return(Convert.ToByte(CONVERT.HexToByte(str[0]) * 16 + CONVERT.HexToByte(str[1])));
}