public string plain(string cplain)
{
string ppbb = "";
for (int i = 0; i < cplain.Length; i += 4)
{
string H = "";
for (int j = i; j < i + 4; j++)
{
H += cplain[j];
}
decdes s = new decdes();
int L = s.abdo(H);
char Q = L < 10 ? '0' : 'A';
if (L > 9)
{
L -= 10;
}
while (L > 0)
{
L = L - 1;
Q++;
}
ppbb += Q;
}
cplain = ppbb;
return(cplain);
}
public string keyenc(string key)
{
string kckckc = "";
if (key[1] == 'x')
{
for (int i = 2; i < 18; i++)
{
int index;
if (Char.IsLetter(key[i]))
{
index = (key[i] - 'A') + 10;
}
else if (!Char.IsLetter(key[i]))
{
index = key[i] - '0';
}
else
{
index = key[i] - '0';
}
decdes s = new decdes();
kckckc += s.hd(index);
}
}
else if (key[1] != 'x')
{
kckckc = key;
}
return(kckckc);
}
public string leftright(string ch, char [] chararr)
{
string le = "", ri = "";
string ppll = new string(chararr);
for (int i = 0; i < 32; i++)
{
ri += ppll[i];
}
for (int i = 32; i < 64; i++)
{
le += ppll[i];
}
for (int i = 16; i >= 1; i--)
{
me();
string Right2 = le;
decdes s = new decdes();
string res = s.rf(le, listofkeys[i - 1]);
string Left2 = "";
for (int uu = 0; uu < ri.Length; uu++)
{
if (ri[uu] == res[uu])
{
Left2 += '0';
}
else
{
Left2 += '1';
}
}
le = Left2;
ri = Right2;
}
if (ch == "r")
{
return(ri);
}
else if (ch == "l")
{
return(le);
}
return(" ");
}
public string plainnnn(string Plain)
{
string pb = "";
for (int i = 0; i < 64; i++)
{
pb += Plain[i1[i] - 1];
}
Plain = pb;
string l = "", r = "";
for (int i = 32; i < 64; i++)
{
r = r + Plain[i];
}
for (int i = 0; i < 32; i++)
{
l = l + Plain[i];
}
for (int i = 1; i <= 16; i++)
{
string l2 = r;
decdes s = new decdes();
string res = s.rf(r, listofkeys[i - 1]);
string r2 = "";
for (int uu = 0; uu < l.Length; uu++)
{
if (l[uu] == res[uu])
{
r2 += '0';
}
else
{
r2 += '1';
}
}
l = l2;
r = r2;
}
pb = "";
for (int i = 0; i < 32; i++)
{
pb = pb + r[i];
}
for (int i = 0; i < 32; i++)
{
pb = pb + l[i];
}
Plain = pb;
pb = "";
for (int i = 0; i < 64; i++)
{
pb += Plain[i2[i] - 1];
}
Plain = pb;
pb = "";
for (int i = 0; i < Plain.Length; i += 4)
{
string ff = "";
for (int j = i; j < i + 4; j++)
{
ff += Plain[j];
}
decdes s = new decdes();
int ii = s.abdo(ff);
char A = ii < 10 ? '0' : 'A';
if (ii > 9)
{
ii -= 10;
}
while (ii > 0)
{
ii--;
A++;
}
pb += A;
}
Plain = pb;
return(Plain);
}
