Course :USCS504 Information and Network security Roll no:37
ASSIGMENT 1
Write programs to implement the following Substitution CipherTechniques:
1)Caesar Cipher
2)Monoalphabetic Cipher
1) Caesar Cipher:
Steps:
1) Open netbeans ➝ create new project ➝ select java ➝ give a project name as “Caesar_cipher”
➝finish
2) Open project ➝Source Packages ➝ Caesar_cipher ➝ Caesar_cipher.java and write a code:
package Caesar_cipher;
import java.util.Scanner;
public class Caesar_cipher {
public static void main(String[] args){
String alpha="abcdefghijklmnopqrstuvwxyz";
Scanner sc=new Scanner(System.in);
System.out.println("Message:");
String s1=sc.nextLine();
char[] a=s1.toCharArray();
int a1=a.length;
for(int j1=0;j1<a1;j1++){
char d=a[j1];
int indx=alpha.indexOf(d);
indx+=3;
int i=indx%26;
char cc=alpha.charAt(i);
System.out.print(cc);
}
}
}
3) Right click on code ➝ Run File it runs the project:
O/P:
Department of cs V.K Krishna Menon College Page No:1
Course :USCS504 Information and Network security Roll no:37
2) Monoalphabetic Cipher:
Steps:
1) Open netbeans ➝ create new project ➝ select java ➝ give a project name as
“Monoalphabetic_Cipher” ➝finish
2) Open project ➝Source Packages ➝ Monoalphabetic_Cipher ➝ Monoalphabetic_Cipher.java
and write a code:
package Monoalphabetic_Cipher;
import java.util.Scanner;
public class Monoalphabetic_Cipher {
public static void main(String[] args){
String alpha="abcdefghijklmnopqrstuvwxyz";
String code="afgbpcdornehiwmqxjklyzstuv";
Scanner sc=new Scanner(System.in);
System.out.println("Message:");
String s1=sc.nextLine();
char[] a=s1.toCharArray();
int a1=a.length;
for(int j1=0;j1<a1;j1++){
char d=a[j1];
int indx=alpha.indexOf(d);
char cc=code.charAt(indx);
System.out.print(cc);
}
}
}
3) Right click on code ➝ Run File it runs the project:
Department of cs V.K Krishna Menon College Page No:2
Course :USCS504 Information and Network security Roll no:37
O/P:
Department of cs V.K Krishna Menon College Page No:3
Course :USCS504 Information and Network security Roll no:37
ASSIGMENT 2
Write programs to implement the following Substitution Cipher Techniques:
1)Vernam Cipher
2)Playfair Cipher
1) Vernam Cipher:
Steps:
1) Open netbeans ➝ create new project ➝ select java ➝ give a project name as “Vernam_Cipher”
➝finish
2) Open project ➝Source Packages ➝ Vernam_Cipher ➝ Vernam_Cipher.java and write a code:
package Vernam_Cipher;
3) Right click on code ➝ Run File it runs the project:
O/P:
package document;
import java.util.Scanner;
public class Vernam {
public static void main(String[] args) {
System.out.println("enter a plain text(Binary string)");
Scanner sc = new Scanner(System.in);
String s, e = "", d = "",k;
s = sc.nextLine();
System.out.println("you have entered :");
System.out.println(s);
System.out.println("Enter key(Binary string):");
k = sc.next();
System.out.println("your entered key is:\n" + k);
System.out.println(k);
System.out.println(s);
for (int i = 0; i<s.length(); i++) {
e+=s.charAt(i)^k.charAt(i);}
for (int i = 0; i<s.length(); i++) {
d+=e.charAt(i)^k.charAt(i);}
System.out.println("encrypt:"+e);
System.out.println("decrypt:"+d);
}}
Output:-
Department of cs V.K Krishna Menon College Page No:4
Course :USCS504 Information and Network security Roll no:37
2) Playfair Cipher:
Steps:
1) Open netbeans ➝ create new project ➝ select java ➝ give a project name as
“Playfair_Cipher” ➝finish
2) Open project ➝Source Packages ➝ Playfair_Cipher ➝ Playfair_Cipher.java and write a code:
package Playfair_Cipher;
import java.util.Scanner;
public class Playfair_Cipher {
public static void main(String[] args){
String[][] m={{"m","o","n","a","r"}, {"c","h","y","b","d"}, {"e","f","g","i","k"},
{"l","p","q","s","t"} ,{"u","v","w","x","z"}};
Scanner sc=new Scanner(System.in);
System.out.println("Message:");
String s1=sc.nextLine();
int l=s1.length();
char[] c=new char[10];
for(int i=0;i<l/2;i++){
int k=0, j=2;
if(s1.length()==1){
s1+="x";
}
String a1=s1.substring(k, j);
Department of cs V.K Krishna Menon College Page No:5
Course :USCS504 Information and Network security Roll no:37
String f1 = a1.substring(0, 1);
String f2 = a1.substring(1, 2);
if(f2=="i"){
f2="j";
}
if(f1=="i"){
f1="j";
}
if(f1.equals(f2)){
f2="x";
k+=1;
j+=1;
}
k+=2;
j+=2;
s1=s1.substring(k, s1.length());
int r1=0,col1=0,r2=0,col2=0;
for(int r=0;r<5;r++){
for(int col=0;col<5;col++){
if(m[r][col].equals(f1)){
r1=r;
col1=col;
}
if(m[r][col].equals(f2)){
r2=r;
col2=col;
}
}
}
if(r1==r2){
col1=(col1+1)%5;
col2=(col2+1)%5;
System.out.print(m[r1][col1]+""+m[r2][col2]);
}
else{
Department of cs V.K Krishna Menon College Page No:6
Course :USCS504 Information and Network security Roll no:37
if(col1==col2){
r1=(r1+1)%5;
r2=(r2+1)%5;
System.out.print(m[r1][col1]+""+m[r2][col2]);
}else{
System.out.print(m[r1][col2]+""+m[r2][col1]);
}
}
}
}
}
3) Right click on code ➝ Run File it runs the project:
O/P:
Department of cs V.K Krishna Menon College Page No:7
Course :USCS504 Information and Network security Roll no:37
ASSIGMENT no 3
Write programs to implement the following Transposition Cipher Techniques
1. Write a program to implement RailFence Cipher
Source Code:
import java.util.*;
class RailFenceBasic{
int depth;
String Encryption(String plainText,int depth)throws Exception {
int r=depth,len=plainText.length();
int c=len/depth;
char mat[][]=new char[r][c];
int k=0;
String cipherText="";
for(int i=0;i< c;i++)
for(int j=0;j< r;j++)
if(k!=len)
mat[j][i]=plainText.charAt(k++);
else
mat[j][i]='X';
Department of cs V.K Krishna Menon College Page No:8
Course :USCS504 Information and Network security Roll no:37
for(int i=0;i< r;i++)
for(int j=0;j< c;j++)
cipherText+=mat[i][j];
return cipherText;
String Decryption(String cipherText,int depth)throws Exception
int r=depth,len=cipherText.length();
int c=len/depth;
char mat[][]=new char[r][c];
int k=0;
String plainText="";
for(int i=0;i< r;i++)
for(int j=0;j< c;j++)
mat[i][j]=cipherText.charAt(k++);
Department of cs V.K Krishna Menon College Page No:9
Course :USCS504 Information and Network security Roll no:37
for(int i=0;i< c;i++)
for(int j=0;j< r;j++)
plainText+=mat[j][i];
return plainText;
class RailFence{
public static void main(String args[])throws Exception
RailFenceBasic rf=new RailFenceBasic();
Scanner scn=new Scanner(System.in);
int depth;
String plainText,cipherText,decryptedText;
System.out.println("Enter plain text:");
plainText=scn.nextLine();
System.out.println("Enter depth for Encryption:");
depth=scn.nextInt();
cipherText=rf.Encryption(plainText,depth);
System.out.println("Encrypted text is:\n"+cipherText);
Department of cs V.K Krishna Menon College Page No:10
Course :USCS504 Information and Network security Roll no:37
decryptedText=rf.Decryption(cipherText, depth);
System.out.println("Decrypted text is:\n"+decryptedText);
Output:
2. Write a program to implement Simple Columnar Technique:-
Source Code:-
package columnar;
import java.util.Scanner;
public class columnar {
public static void main(String[] args) {
String plain = "";
int row, col;
Scanner sc = new Scanner(System.in);
System.out.println("enter the no. of rows and cols");
row = sc.nextInt();col = sc.nextInt();
System.out.println("rows= " + row + " cols= " + col);
Department of cs V.K Krishna Menon College Page No:11
Course :USCS504 Information and Network security Roll no:37
System.out.println("Enter a plain text:");
plain = sc.next();
System.out.println("plain text is : " + plain);
char p[] = new char[plain.length()];
char c[][] = new char[col][row];
char d[][] = new char[row][col];
if (plain.length() % 2 != 0) { plain += "$";
p = plain.toCharArray();
for (inti = 0; i<p.length; i++) {
System.out.println(" " + p[i]);}
char mat[][] = new char[row][col];
intctn = 0;
for (inti = 0; i< row; i++) {
for (int j = 0; j < col; j++) {
if (ctn<p.length) {
mat[i][j] += p[ctn];
ctn++;
for (inti = 0; i< row; i++) {
for (int j = 0; j < col; j++) {
System.out.print(" " + mat[i][j]);}
Department of cs V.K Krishna Menon College Page No:12
Course :USCS504 Information and Network security Roll no:37
System.out.println("\n");}
for (inti = 0; i< col; i++) {
for (int j = 0; j < row; j++) {
c[i][j] = mat[j][i];}
System.out.println("Encrypted text");
for (inti = 0; i< col; i++) {
for (int j = 0; j < row; j++) {
System.out.print(c[i][j]);
System.out.println("\n");
//--------------------------------------DECRYPTION-------------------------------------
for (inti = 0; i< row; i++) {
for (int j = 0; j < col; j++) {
d[i][j] = c[j][i];}}
System.out.println("Decrypted Text");
for (inti = 0; i< row; i++) {
for (int j = 0; j < col; j++) {System.out.print(d[i][j]);
Output:-
Department of cs V.K Krishna Menon College Page No:13
Course :USCS504 Information and Network security Roll no:37
ASSIGNMENT NO 4
Write program to implement the DES and AES:
Department of cs V.K Krishna Menon College Page No:14
Course :USCS504 Information and Network security Roll no:37
DES ALGORITHM:
Source Code:
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.swing.JOptionPane;
public class DES{
public static void main(String[] args) throws Exception {
KeyGenerator keygen = KeyGenerator.getInstance(“DES”);
// create a key
SecretKey secretkey = keygen.generateKey();
Cipher cip = Cipher.getInstance(“DES”);
// initialise cipher to with secret key
cip.init(Cipher.ENCRYPT_MODE, secretkey);
String inputText = JOptionPane.showInputDialog(” Give Input: “);
byte[] encrypted = cip.doFinal(inputText.getBytes());
cip.init(Cipher.DECRYPT_MODE, secretkey);
byte[] decrypted = cip.doFinal(encrypted);
JOptionPane.showMessageDialog(JOptionPane.getRootFrame(),
“encrypted : ” + new String(encrypted) + “\n” +
“decrypted : ” + new String(decrypted));
System.exit(0);
Department of cs V.K Krishna Menon College Page No:15
Course :USCS504 Information and Network security Roll no:37
OUTPUT:
AES Algorithm:
package aes;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.swing.JOptionPane;
public class Aes {
public static void main(String[] args)throws Exception {
KeyGenerator keygen = KeyGenerator.getInstance("AES");
// create a key
SecretKey secretkey = keygen.generateKey();
Cipher cip = Cipher.getInstance("AES");
// initialise cipher to with secret key
cip.init(Cipher.ENCRYPT_MODE, secretkey);
String inputText = JOptionPane.showInputDialog("Give input:");
byte[] encrypted = cip.doFinal(inputText.getBytes());
cip.init(Cipher.DECRYPT_MODE, secretkey);
byte[] decrypted = cip.doFinal(encrypted);
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Course :USCS504 Information and Network security Roll no:37
JOptionPane.showMessageDialog(JOptionPane.getRootFrame(),"encrypted:"+new
String(encrypted)+"\n"+"decrypted:"+new String(decrypted));
System.exit(0);
OUTPUT:
ASSIGNMENTASSIGMENT NO 5
Write a program to implement RSA algorithm to perform encryption/decryption of
a given string
import java.math.BigInteger;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class RSAAlgorithm {
public static void main(String[] args) throws Exception {
Department of cs V.K Krishna Menon College Page No:17
Course :USCS504 Information and Network security Roll no:37
// TODO code application logic here
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter Encryption Constant:");
BigInteger e = new BigInteger(br.readLine());
System.out.println("Enter Prime Number 1:");
BigInteger p = new BigInteger(br.readLine());
System.out.println("Enter Prime Number 2:");
BigInteger q = new BigInteger(br.readLine());
BigInteger n = p.multiply(q);
BigInteger phi = p.subtract(BigInteger.ONE).multiply(q.subtract(BigInteger.ONE));
BigInteger d = e.modInverse(phi);
System.out.println("Enter PlainText Message:");
BigInteger plainText = new BigInteger(br.readLine());
BigInteger cipherText = plainText.modPow(e, n);
System.out.println("CipherText:" + cipherText);
BigInteger recoveredPlainText = cipherText.modPow(d, n);
System.out.println("Recovered PlainText:" + recoveredPlainText);
OUTPUT:
Department of cs V.K Krishna Menon College Page No:18
Course :USCS504 Information and Network security Roll no:37
ASSIGNMENT -6
Problem:Write a program to implement the Diffie-Hellman Key Agreement
algorithm to generate symmetric keys.
Code:
import java.io.BufferedReader;
import java.io.InputStreamReader;
Department of cs V.K Krishna Menon College Page No:19
Course :USCS504 Information and Network security Roll no:37
import java.math.BigInteger;
import java.io.IOException;
public class DiffieHellman {
public static void main(String[] args) {
// TODO code application logic here
try {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the prime number:");
BigInteger primeNumber = new BigInteger(br.readLine());
System.out.println("Enter the primitive root of prime number:");
BigInteger primitiveRoot = new BigInteger(br.readLine());
System.out.println("Enter the private key of A:");
BigInteger privateKeyA = new BigInteger(br.readLine());
System.out.println("Enter the private key of B:");
BigInteger privateKeyB = new BigInteger(br.readLine());
BigInteger publicKeyA = primitiveRoot.modPow(privateKeyA, primeNumber);
BigInteger publicKeyB = primitiveRoot.modPow(privateKeyB, primeNumber);
System.out.println("Public Key of A:" + publicKeyA);
System.out.println("Public Key of B:" + publicKeyB);
BigInteger sharedSecretKeyB = publicKeyA.modPow(privateKeyB, primeNumber);
BigInteger sharedSecretKeyA = publicKeyB.modPow(privateKeyA, primeNumber);
System.out.println("Shared Secret Key Computed By A:" + sharedSecretKeyA);
System.out.println("Shared Secret Key Computed By B:" + sharedSecretKeyB);
} catch (ArithmeticException e) {
Department of cs V.K Krishna Menon College Page No:20
Course :USCS504 Information and Network security Roll no:37
System.out.println(e);
} catch (IOException e) {
System.out.println("Input/Output Exception" + e);
Output:
Enter the prime number:
353
Enter the primitive root of prime number:
Enter the private key of A:
97
Enter the private key of B:
233
Public Key of A:40
Public Key of B:248
Shared Secret Key Computed By A:160
Shared Secret Key Computed By B:160
BUILD SUCCESSFUL (total time: 46 seconds)
Department of cs V.K Krishna Menon College Page No:21
Course :USCS504 Information and Network security Roll no:37
ASSIGNMENT -7
Write a program to implement the MD5 algorithm compute the message digest.
Step:
Create a new java Application and write the code:
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class MD5{
public static String getMd5(String input)
{
try{
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] messageDigest = md.digest(input.getBytes());
BigInteger no = new BigInteger(1, messageDigest);
String hashtext = no.toString(16);
while (hashtext.length() < 32) {
hashtext = "0" + hashtext;
}
return hashtext;
}catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
}}
public static void main(String args[]) throws NoSuchAlgorithmException {
String s = "Hello world";
System.out.println("Your HashCode Generated by MD5 is: " + getMd5(s));
}}
Department of cs V.K Krishna Menon College Page No:22
Course :USCS504 Information and Network security Roll no:37
ASSIGNMENT -8
Write a program to calculate HMAC-SHA1 Signature
Step:
Create a new java Application and write the code:
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class GFG {
public static String encryptThisString(String input) {
try{
MessageDigest md = MessageDigest.getInstance("SHA-1");
byte[] messageDigest = md.digest(input.getBytes());
BigInteger no = new BigInteger(1, messageDigest);
String hashtext = no.toString(16);
while (hashtext.length() < 32) {
hashtext = "0" + hashtext;
}
return hashtext;
}catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
}}
public static void main(String args[]) throws NoSuchAlgorithmException {
System.out.println("HashCode Generated by SHA-1 for: ");
String s1 = "GeeksForGeeks";
System.out.println("\n" + s1 + " : " + encryptThisString(s1));
String s2 = "hello world";
System.out.println("\n" + s2 + " : " + encryptThisString(s2));
}}
Department of cs V.K Krishna Menon College Page No:23
Course :USCS504 Information and Network security Roll no:37
ASSIGNMENT 9
Write a Program to Implement SSl
Step 1:Open Ubuntu Terminal,enter the following commands:
Sudo apt-get install update
Sudo apt-get install apache2
Step2:Activate the SSl Module:
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Course :USCS504 Information and Network security Roll no:37
Sudo a2enmod ssl
Step3:Restart the service
Sudo service apache2 restart
Step4:Create a new Directory
Sudo mkdir /etc/apache2/ssl
Step5:Create a Self Signed SSl Certificate
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout
/etc/apache2/ssl/apache.key -out /etc/apache2/ssl/apache.crt
Give the Information Provided in the SSL Certificate
Department of cs V.K Krishna Menon College Page No:25
Course :USCS504 Information and Network security Roll no:37
Step6:Set Up the Certificate
sudo nano /etc/apache2/sites-available/default-ssl.conf
Provide the ServerName as Per as Ur Requirement
Find the SSLEngine line and make sure they match the Extension and Write the
Directory module
Step7:Activate the new Virtual host
Sudo a2ensite default-ssl
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Course :USCS504 Information and Network security Roll no:37
Step8:Check the status of the Apache
systemctl status apache2.service
Step9:Enable the SSL
sudo a2enmod ssl
Step10:Reload the service
sudo service apache2 reload
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Course :USCS504 Information and Network security Roll no:37
Step11:Open the web and search https://127.0.0.1
Click on Advance and Continue the Risk and accept
Step12:Click on info icon
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Course :USCS504 Information and Network security Roll no:37
Click on > icon after Connection
Click on More Information
Step13:A Security page will appear
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Course :USCS504 Information and Network security Roll no:37
Step14:Click on View Certificate
Step15:Click on Details
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Course :USCS504 Information and Network security Roll no:37
Step16:Click on Issuer
Step17:Click on Certificate signature Algorithm
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Course :USCS504 Information and Network security Roll no:37
Server and Client Implementation in netbeans java source code
SERVER:
package javasslserver;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.SSLServerSocketFactory;
public class JavaSSLServer {
static final int port = 8000;
Department of cs V.K Krishna Menon College Page No:32
Course :USCS504 Information and Network security Roll no:37
public static void main(String[] args) {
SSLServerSocketFactory sslServerSocketFactory =
(SSLServerSocketFactory)SSLServerSocketFactory.getDefault();
try {
ServerSocket sslServerSocket =
sslServerSocketFactory.createServerSocket(port);
System.out.println("SSL ServerSocket started");
System.out.println(sslServerSocket.toString());
Socket socket = sslServerSocket.accept();
System.out.println("ServerSocket accepted");
PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
try (BufferedReader bufferedReader =
new BufferedReader(
new InputStreamReader(socket.getInputStream()))) {
String line;
while((line = bufferedReader.readLine()) != null){
System.out.println(line);
out.println(line);
System.out.println("Closed");
} catch (IOException ex) {
Logger.getLogger(JavaSSLServer.class.getName())
.log(Level.SEVERE, null, ex);
Department of cs V.K Krishna Menon College Page No:33
Course :USCS504 Information and Network security Roll no:37
OUTPUT:
CLEAN AND BUILD SERVER
Copy the Build jar file path from the output window and run in the terminal
java -jar "/home/labpc-64/NetBeansProjects/JavaSSLServer/dist/JavaSSLServer.jar"
U have to copy and paste this from the output window
CLIENT:
package javasslclient;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
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Course :USCS504 Information and Network security Roll no:37
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.SSLSocketFactory;
public class JavaSSLClient {
static final int port = 8000;
public static void main(String[] args) {
SSLSocketFactory sslSocketFactory =
(SSLSocketFactory)SSLSocketFactory.getDefault();
try {
Socket socket = sslSocketFactory.createSocket("localhost", port);
PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
try (BufferedReader bufferedReader =
new BufferedReader(
new InputStreamReader(socket.getInputStream()))) {
Scanner scanner = new Scanner(System.in);
while(true){
System.out.println("Enter something:");
String inputLine = scanner.nextLine();
if(inputLine.equals("q")){
break;
out.println(inputLine);
System.out.println(bufferedReader.readLine());
Department of cs V.K Krishna Menon College Page No:35
Course :USCS504 Information and Network security Roll no:37
} catch (IOException ex) {
Logger.getLogger(JavaSSLClient.class.getName())
.log(Level.SEVERE, null, ex);
}}}
OUTPUT:
Clean and Build Client
Copy the Build jar file path from the output window and run in the terminal
U will get an Error
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Course :USCS504 Information and Network security Roll no:37
U have to generate a Keytool for this.
U have java installed in ur Ubuntu
STEPS:
Make a directory mykeystore
Get into the directory by cd mykeystore
U will not have any content there u have to create keytool under /usr/bin
Follow the Terminal for Steps:
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Course :USCS504 Information and Network security Roll no:37
Now a keytool named examplestore has been created
Run SSL server and client by entering the commands:
These is example because in keystore u have to specify ur directory of keytool stored
$ java -jar -Djavax.net.ssl.keyStore=keystore
-Djavax.net.ssl.keyStorePassword=password "...JavaSSLServer.jar"
$ java -jar -Djavax.net.ssl.trustStore=keystore
-Djavax.net.ssl.trustStorePassword=password "...JavaSSLClient.jar"
Run the server and copy the Building jar path
Now open Terminal and write the code:
java -jar -Djavax.net.ssl.keyStore=/home/labpc-64/mykeystore/examplestore
-Djavax.net.ssl.keyStorePassword=password
"/home/labpc-64/NetBeansProjects/JavaSSLServer/dist/JavaSSLServer.jar"
Here /home/labpc-64/mykeystore/examplestore is ur path where keytool stored
This is the building jar path of server
"/home/labpc-64/NetBeansProjects/JavaSSLServer/dist/JavaSSLServer.jar"
Run the Client and copy Bilding jar path
Open Terminal and paste
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Course :USCS504 Information and Network security Roll no:37
java -jar -Djavax.net.ssl.trustStore=/home/labpc-64/mykeystore/examplestore
-Djavax.net.ssl.trustStorePassword=password "/home/labpc-64/NetBeansProjects/
JavaSSLClient/dist/JavaSSLClient.jar"
Perform the same steps as above
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Course :USCS504 Information and Network security Roll no:37
ASSIGNMENT 10
Configure Windows Firewall to block: - A port - An Program - A website
Steps :-
Go to Control Panel □ System & Security □ Windows Firewall
Advance Settings
Firewall to block A port :-
Inbound Rules □ right click → new Rule
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Course :USCS504 Information and Network security Roll no:37
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Course :USCS504 Information and Network security Roll no:37
Firewall to Block a program :-
Inbound Rules □right click → new Rule
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Course :USCS504 Information and Network security Roll no:37
Firewall to Block a Website :-
Inbound Rules □ right click → new Rule □ Custom □ Protocols & Port
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Course :USCS504 Information and Network security Roll no:37
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