static void GeneratePermutationTable(
PermutationTable table,
string entityName = "ENTITY_NAME",
string architectureName = "ARCHITECTURE_NAME")
{
switch (table)
{
case PermutationTable.IP:
var ip = TableValues.IP();
var ipResult = InitPermutationTableHeader(64, 64, entityName, architectureName);
ipResult = GeneratePermutationTableAssignments(ip, ipResult);
ipResult.Add($"end {architectureName};");
File.WriteAllLines(_path + "IP.vhd", ipResult);
break;
case PermutationTable.IPInv:
var ipInv = TableValues.IPInv();
var ipInvResult = InitPermutationTableHeader(64, 64, entityName, architectureName);
ipInvResult = GeneratePermutationTableAssignments(ipInv, ipInvResult);
ipInvResult.Add($"end {architectureName};");
File.WriteAllLines(_path + "IPInv.vhd", ipInvResult);
break;
case PermutationTable.P:
var p = TableValues.P();
var pResult = InitPermutationTableHeader(32, 32, entityName, architectureName);
pResult = GeneratePermutationTableAssignments(p, pResult);
pResult.Add($"end {architectureName};");
File.WriteAllLines(_path + "P.vhd", pResult);
break;
case PermutationTable.PC1:
var pc1 = TableValues.PC1();
var pc1Result = InitPermutationTableHeader(64, 56, entityName, architectureName);
pc1Result = GeneratePermutationTableAssignments(pc1, pc1Result);
pc1Result.Add($"end {architectureName};");
File.WriteAllLines(_path + "PC1.vhd", pc1Result);
break;
case PermutationTable.PC2:
var pc2 = TableValues.PC2();
var pc2Result = InitPermutationTableHeader(56, 48, entityName, architectureName);
pc2Result = GeneratePermutationTableAssignments(pc2, pc2Result);
pc2Result.Add($"end {architectureName};");
File.WriteAllLines(_path + "PC2.vhd", pc2Result);
break;
}
}
static void GenerateSubstitutionTable(
SBox name,
string switchVariable = "INPUT",
string assignVariable = "OUTPUT",
string entityName = "ENTITY_NAME",
string architectureName = "ARCHITECTURE_NAME")
{
byte mask = 15; // 0b00001111
var result = InitSBoxHeader(switchVariable, entityName, architectureName);
int counter = 0;
switch (name)
{
case SBox.AesSbox:
var aesSbox = TableValues.AesSBox();
foreach (var row in aesSbox)
{
foreach (var number in row)
{
int columnIndex = counter & mask;
int rowIndex = (counter >> 4) & mask;
string newValue = GetBinaryValue(aesSbox[rowIndex][columnIndex], 8);
string counterValue = GetBinaryValue(counter++, 8);
result.Add($"\t\twhen \"{counterValue}\" => {assignVariable} <= \"{newValue}\";");
}
}
result.Add("end case;");
result.Add("end process;");
result.Add($"end {architectureName};");
File.WriteAllLines(_path + "AesSbox.vhd", result);
break;
case SBox.AesSboxInv:
var aesSboxInv = TableValues.AesSBoxInv();
foreach (var row in aesSboxInv)
{
foreach (var number in row)
{
int columnIndex = counter & mask;
int rowIndex = (counter >> 4) & mask;
string newValue = GetBinaryValue(aesSboxInv[rowIndex][columnIndex], 8);
string counterValue = GetBinaryValue(counter++, 8);
result.Add($"\twhen \"{counterValue}\" => {assignVariable} <= \"{newValue}\";");
}
}
result.Add("end case;");
result.Add("end process;");
result.Add($"end {architectureName};");
File.WriteAllLines(_path + "AesSboxInv.vhd", result);
break;
case SBox.Des1:
var des1 = TableValues.DesSBox(1);
GenerateDesSbox(des1, "Des1", assignVariable, entityName, architectureName: architectureName);
break;
case SBox.Des2:
var des2 = TableValues.DesSBox(2);
GenerateDesSbox(des2, "Des2", assignVariable, architectureName);
break;
case SBox.Des3:
var des3 = TableValues.DesSBox(3);
GenerateDesSbox(des3, "Des3", assignVariable, architectureName);
break;
case SBox.Des4:
var des4 = TableValues.DesSBox(4);
GenerateDesSbox(des4, "Des4", assignVariable, architectureName);
break;
case SBox.Des5:
var des5 = TableValues.DesSBox(5);
GenerateDesSbox(des5, "Des5", assignVariable, architectureName);
break;
case SBox.Des6:
var des6 = TableValues.DesSBox(6);
GenerateDesSbox(des6, "Des6", assignVariable, architectureName);
break;
case SBox.Des7:
var des7 = TableValues.DesSBox(7);
GenerateDesSbox(des7, "Des7", assignVariable, architectureName);
break;
case SBox.Des8:
var des8 = TableValues.DesSBox(8);
GenerateDesSbox(des8, "Des8", assignVariable, entityName, architectureName: architectureName);
break;
}
}