/* package whatever; // don't place package name! */
import java.util.*;
class Main {
private static class DES {
// CONSTANTS
// Initial Permutation Table
int[] IP = { 58, 50, 42, 34, 26, 18,
10, 2, 60, 52, 44, 36, 28, 20,
12, 4, 62, 54, 46, 38,
30, 22, 14, 6, 64, 56,
48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17,
9, 1, 59, 51, 43, 35, 27,
19, 11, 3, 61, 53, 45,
37, 29, 21, 13, 5, 63, 55,
47, 39, 31, 23, 15, 7 };
// Inverse Initial Permutation Table
int[] IP1 = { 40, 8, 48, 16, 56, 24, 64,
32, 39, 7, 47, 15, 55,
23, 63, 31, 38, 6, 46,
14, 54, 22, 62, 30, 37,
5, 45, 13, 53, 21, 61,
29, 36, 4, 44, 12, 52,
20, 60, 28, 35, 3, 43,
11, 51, 19, 59, 27, 34,
2, 42, 10, 50, 18, 58,
26, 33, 1, 41, 9, 49,
17, 57, 25 };
// first key-hePermutation Table
int[] PC1 = { 57, 49, 41, 33, 25,
17, 9, 1, 58, 50, 42, 34, 26,
18, 10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36, 63,
55, 47, 39, 31, 23, 15, 7, 62,
54, 46, 38, 30, 22, 14, 6, 61,
53, 45, 37, 29, 21, 13, 5, 28,
20, 12, 4 };
// second key-Permutation Table
int[] PC2 = { 14, 17, 11, 24, 1, 5, 3,
28, 15, 6, 21, 10, 23, 19, 12,
4, 26, 8, 16, 7, 27, 20, 13, 2,
41, 52, 31, 37, 47, 55, 30, 40,
51, 45, 33, 48, 44, 49, 39, 56,
34, 53, 46, 42, 50, 36, 29, 32 };
// Expansion D-box Table
int[] EP = { 32, 1, 2, 3, 4, 5, 4,
5, 6, 7, 8, 9, 8, 9, 10,
11, 12, 13, 12, 13, 14, 15,
16, 17, 16, 17, 18, 19, 20,
21, 20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29, 28,
29, 30, 31, 32, 1 };
// Straight Permutation Table
int[] P = { 16, 7, 20, 21, 29, 12, 28,
17, 1, 15, 23, 26, 5, 18,
31, 10, 2, 8, 24, 14, 32,
27, 3, 9, 19, 13, 30, 6,
22, 11, 4, 25 };
// S-box Table
int[][][] sbox = {
{ { 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 },
{ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8 },
{ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 },
{ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 } },
{ { 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
{ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5 },
{ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 },
{ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 } },
{ { 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
{ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1 },
{ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 },
{ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 } },
{ { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
{ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9 },
{ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 },
{ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 } },
{ { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
{ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6 },
{ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 },
{ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 } },
{ { 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
{ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8 },
{ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 },
{ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 } },
{ { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
{ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6 },
{ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 },
{ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 } },
{ { 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
{ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2 },
{ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 },
{ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } }
};
int[] shiftBits = { 1, 1, 2, 2, 2, 2, 2, 2,
1, 2, 2, 2, 2, 2, 2, 1 };
// hexadecimal to binary conversion
{
int n = input.length() * 4;
input
= Long.
toBinaryString( Long.
parseUnsignedLong(input,
16)); while (input.length() < n)
input = "0" + input;
return input;
}
// binary to hexadecimal conversion
{
int n = (int)input.length() / 4;
input
= Long.
toHexString( Long.
parseUnsignedLong(input,
2)); while (input.length() < n)
input = "0" + input;
return input;
}
// per-mutate input hexadecimal
// according to specified sequence
{
input = hextoBin(input);
for (int i = 0; i < sequence.length; i++)
output += input.charAt(sequence[i] - 1);
output = binToHex(output);
return output;
}
// xor 2 hexadecimal strings
{
// hexadecimal to decimal(base 10)
long t_a
= Long.
parseUnsignedLong(a,
16); // hexadecimal to decimal(base 10)
long t_b
= Long.
parseUnsignedLong(b,
16); // xor
t_a = t_a ^ t_b;
// decimal to hexadecimal
a
= Long.
toHexString(t_a
); // prepend 0's to maintain length
while (a.length() < b.length())
a = "0" + a;
return a;
}
// left Circular Shifting bits
{
int n = input.length() * 4;
int perm[] = new int[n];
for (int i = 0; i < n - 1; i++)
perm[i] = (i + 2);
perm[n - 1] = 1;
while (numBits-- > 0)
input = permutation(perm, input);
return input;
}
// preparing 16 keys for 16 rounds
{
// first key permutation
key = permutation(PC1, key);
for (int i = 0; i < 16; i++) {
key = leftCircularShift(
key.substring(0, 7), shiftBits[i])
+ leftCircularShift(key.substring(7, 14),
shiftBits[i]);
// second key permutation
keys[i] = permutation(PC2, key);
}
return keys;
}
// s-box lookup
{
input = hextoBin(input);
for (int i = 0; i < 48; i += 6) {
String temp
= input.
substring(i, i
+ 6); int num = i / 6;
temp.charAt(0) + "" + temp.charAt(5), 2);
temp.substring(1, 5), 2);
sbox[num][row][col]);
}
return output;
}
{
// fk
String left
= input.
substring(0,
8); String temp
= input.
substring(8,
16); // Expansion permutation
temp = permutation(EP, temp);
// xor temp and round key
temp = xor(temp, key);
// lookup in s-box table
temp = sBox(temp);
// Straight D-box
temp = permutation(P, temp);
// xor
left = xor(left, temp);
+ (num + 1) + " "
+ right.toUpperCase()
+ " " + left.toUpperCase() + " "
+ key.toUpperCase());
// swapper
return right + left;
}
{
int i;
// get round keys
// initial permutation
plainText = permutation(IP, plainText);
"After initial permutation: "
+ plainText.toUpperCase());
"After splitting: L0="
+ plainText.substring(0, 8).toUpperCase()
+ " R0="
+ plainText.substring(8, 16).toUpperCase() + "\n");
// 16 rounds
for (i = 0; i < 16; i++) {
plainText = round(plainText, keys[i], i);
}
// 32-bit swap
plainText = plainText.substring(8, 16)
+ plainText.substring(0, 8);
// final permutation
plainText = permutation(IP1, plainText);
return plainText;
}
{
int i;
// get round keys
// initial permutation
plainText = permutation(IP, plainText);
"After initial permutation: "
+ plainText.toUpperCase());
"After splitting: L0="
+ plainText.substring(0, 8).toUpperCase()
+ " R0=" + plainText.substring(8, 16).toUpperCase()
+ "\n");
// 16-rounds
for (i = 15; i > -1; i--) {
plainText = round(plainText, keys[i], 15 - i);
}
// 32-bit swap
plainText = plainText.substring(8, 16)
+ plainText.substring(0, 8);
plainText = permutation(IP1, plainText);
return plainText;
}
}
public static void main
(String args
[]) {
String text
= "123456ABCD132536"; String key
= "656173795F457841";
DES cipher = new DES();
System.
out.
println("Encryption:\n"); text = cipher.encrypt(text, key);
"\nCipher Text: " + text.toUpperCase() + "\n");
System.
out.
println("Decryption\n"); text = cipher.decrypt(text, key);
"\nPlain Text: "
+ text.toUpperCase());
}
}
// code contributed by Abhay Bhat
/* package whatever; // don't place package name! */

import java.util.*;

class Main {
	private static class DES {
		// CONSTANTS
		// Initial Permutation Table
		int[] IP = { 58, 50, 42, 34, 26, 18,
					10, 2, 60, 52, 44, 36, 28, 20,
					12, 4, 62, 54, 46, 38,
					30, 22, 14, 6, 64, 56,
					48, 40, 32, 24, 16, 8,
					57, 49, 41, 33, 25, 17,
					9, 1, 59, 51, 43, 35, 27,
					19, 11, 3, 61, 53, 45,
					37, 29, 21, 13, 5, 63, 55,
					47, 39, 31, 23, 15, 7 };

		// Inverse Initial Permutation Table
		int[] IP1 = { 40, 8, 48, 16, 56, 24, 64,
					32, 39, 7, 47, 15, 55,
					23, 63, 31, 38, 6, 46,
					14, 54, 22, 62, 30, 37,
					5, 45, 13, 53, 21, 61,
					29, 36, 4, 44, 12, 52,
					20, 60, 28, 35, 3, 43,
					11, 51, 19, 59, 27, 34,
					2, 42, 10, 50, 18, 58,
					26, 33, 1, 41, 9, 49,
					17, 57, 25 };

		// first key-hePermutation Table
		int[] PC1 = { 57, 49, 41, 33, 25,
					17, 9, 1, 58, 50, 42, 34, 26,
					18, 10, 2, 59, 51, 43, 35, 27,
					19, 11, 3, 60, 52, 44, 36, 63,
					55, 47, 39, 31, 23, 15, 7, 62,
					54, 46, 38, 30, 22, 14, 6, 61,
					53, 45, 37, 29, 21, 13, 5, 28,
					20, 12, 4 };

		// second key-Permutation Table
		int[] PC2 = { 14, 17, 11, 24, 1, 5, 3,
					28, 15, 6, 21, 10, 23, 19, 12,
					4, 26, 8, 16, 7, 27, 20, 13, 2,
					41, 52, 31, 37, 47, 55, 30, 40,
					51, 45, 33, 48, 44, 49, 39, 56,
					34, 53, 46, 42, 50, 36, 29, 32 };

		// Expansion D-box Table
		int[] EP = { 32, 1, 2, 3, 4, 5, 4,
					5, 6, 7, 8, 9, 8, 9, 10,
					11, 12, 13, 12, 13, 14, 15,
					16, 17, 16, 17, 18, 19, 20,
					21, 20, 21, 22, 23, 24, 25,
					24, 25, 26, 27, 28, 29, 28,
					29, 30, 31, 32, 1 };

		// Straight Permutation Table
		int[] P = { 16, 7, 20, 21, 29, 12, 28,
					17, 1, 15, 23, 26, 5, 18,
					31, 10, 2, 8, 24, 14, 32,
					27, 3, 9, 19, 13, 30, 6,
					22, 11, 4, 25 };

		// S-box Table
		int[][][] sbox = {
			{ { 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 },
			{ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8 },
			{ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 },
			{ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 } },

			{ { 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
			{ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5 },
			{ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 },
			{ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 } },
			{ { 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
			{ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1 },
			{ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 },
			{ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 } },
			{ { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
			{ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9 },
			{ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 },
			{ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 } },
			{ { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
			{ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6 },
			{ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 },
			{ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 } },
			{ { 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
			{ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8 },
			{ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 },
			{ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 } },
			{ { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
			{ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6 },
			{ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 },
			{ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 } },
			{ { 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
			{ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2 },
			{ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 },
			{ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } }
		};
		int[] shiftBits = { 1, 1, 2, 2, 2, 2, 2, 2,
							1, 2, 2, 2, 2, 2, 2, 1 };

		// hexadecimal to binary conversion
		String hextoBin(String input)
		{
			int n = input.length() * 4;
			input = Long.toBinaryString(
				Long.parseUnsignedLong(input, 16));
			while (input.length() < n)
				input = "0" + input;
			return input;
		}

		// binary to hexadecimal conversion
		String binToHex(String input)
		{
			int n = (int)input.length() / 4;
			input = Long.toHexString(
				Long.parseUnsignedLong(input, 2));
			while (input.length() < n)
				input = "0" + input;
			return input;
		}

		// per-mutate input hexadecimal
		// according to specified sequence
		String permutation(int[] sequence, String input)
		{
			String output = "";
			input = hextoBin(input);
			for (int i = 0; i < sequence.length; i++)
				output += input.charAt(sequence[i] - 1);
			output = binToHex(output);
			return output;
		}

		// xor 2 hexadecimal strings
		String xor(String a, String b)
		{
			// hexadecimal to decimal(base 10)
			long t_a = Long.parseUnsignedLong(a, 16);
			// hexadecimal to decimal(base 10)
			long t_b = Long.parseUnsignedLong(b, 16);
			// xor
			t_a = t_a ^ t_b;
			// decimal to hexadecimal
			a = Long.toHexString(t_a);
			// prepend 0's to maintain length
			while (a.length() < b.length())
				a = "0" + a;
			return a;
		}

		// left Circular Shifting bits
		String leftCircularShift(String input, int numBits)
		{
			int n = input.length() * 4;
			int perm[] = new int[n];
			for (int i = 0; i < n - 1; i++)
				perm[i] = (i + 2);
			perm[n - 1] = 1;
			while (numBits-- > 0)
				input = permutation(perm, input);
			return input;
		}

		// preparing 16 keys for 16 rounds
		String[] getKeys(String key)
		{
			String keys[] = new String[16];
			// first key permutation
			key = permutation(PC1, key);
			for (int i = 0; i < 16; i++) {
				key = leftCircularShift(
						key.substring(0, 7), shiftBits[i])
					+ leftCircularShift(key.substring(7, 14),
										shiftBits[i]);
				// second key permutation
				keys[i] = permutation(PC2, key);
			}
			return keys;
		}

		// s-box lookup
		String sBox(String input)
		{
			String output = "";
			input = hextoBin(input);
			for (int i = 0; i < 48; i += 6) {
				String temp = input.substring(i, i + 6);
				int num = i / 6;
				int row = Integer.parseInt(
					temp.charAt(0) + "" + temp.charAt(5), 2);
				int col = Integer.parseInt(
					temp.substring(1, 5), 2);
				output += Integer.toHexString(
					sbox[num][row][col]);
			}
			return output;
		}

		String round(String input, String key, int num)
		{
			// fk
			String left = input.substring(0, 8);
			String temp = input.substring(8, 16);
			String right = temp;
			// Expansion permutation
			temp = permutation(EP, temp);
			// xor temp and round key
			temp = xor(temp, key);
			// lookup in s-box table
			temp = sBox(temp);
			// Straight D-box
			temp = permutation(P, temp);
			// xor
			left = xor(left, temp);
			System.out.println("Round "
							+ (num + 1) + " "
							+ right.toUpperCase()
							+ " " + left.toUpperCase() + " "
							+ key.toUpperCase());

			// swapper
			return right + left;
		}

		String encrypt(String plainText, String key)
		{
			int i;
			// get round keys
			String keys[] = getKeys(key);

			// initial permutation
			plainText = permutation(IP, plainText);
			System.out.println(
				"After initial permutation: "
				+ plainText.toUpperCase());
			System.out.println(
				"After splitting: L0="
				+ plainText.substring(0, 8).toUpperCase()
				+ " R0="
				+ plainText.substring(8, 16).toUpperCase() + "\n");

			// 16 rounds
			for (i = 0; i < 16; i++) {
				plainText = round(plainText, keys[i], i);
			}

			// 32-bit swap
			plainText = plainText.substring(8, 16)
						+ plainText.substring(0, 8);

			// final permutation
			plainText = permutation(IP1, plainText);
			return plainText;
		}

		String decrypt(String plainText, String key)
		{
			int i;
			// get round keys
			String keys[] = getKeys(key);

			// initial permutation
			plainText = permutation(IP, plainText);
			System.out.println(
				"After initial permutation: "
				+ plainText.toUpperCase());
			System.out.println(
				"After splitting: L0="
				+ plainText.substring(0, 8).toUpperCase()
				+ " R0=" + plainText.substring(8, 16).toUpperCase()
				+ "\n");

			// 16-rounds
			for (i = 15; i > -1; i--) {
				plainText = round(plainText, keys[i], 15 - i);
			}

			// 32-bit swap
			plainText = plainText.substring(8, 16)
						+ plainText.substring(0, 8);
			plainText = permutation(IP1, plainText);
			return plainText;
		}
	}
	public static void main(String args[])
	{
		String text = "123456ABCD132536";
		String key = "656173795F457841";

		DES cipher = new DES();
		System.out.println("Encryption:\n");
		text = cipher.encrypt(text, key);
		System.out.println(
			"\nCipher Text: " + text.toUpperCase() + "\n");
		System.out.println("Decryption\n");
		text = cipher.decrypt(text, key);
		System.out.println(
			"\nPlain Text: "
			+ text.toUpperCase());
	}
}
// code contributed by Abhay Bhat
