import java.net.*;
import java.io.*;

class tcpip_server
{
public static void main(String args) throws IOException
{
ServerSocket n1=null;
try
{
n1=new ServerSocket(98);
}
catch(IOException e)
{
System.err.println(Port 98 could not be found);
System.exit(1);
}
Socket c=null;
try
{
c=n1.accept();
System.out.println(Connection from +c);
}
catch(IOException e)
{
System.out.println(Accept failed);
System.exit(1);
}
PrintWriter out=new PrintWriter(c.getOutputStream(),true);
BufferedReader in=n ....etc

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#include
#include
void main()
{
char a,b;
int i,j,k,count=0;;
clrscr();
printf( enter bits and press -1 to terminate \n);
printf(\t);
for(i=0;i<100;i++)
{
a=getch();
k=a;
if(k!=13 && k!=48 && k!=49)
{
i--;
continue;
}
putch(a);
if(a==13)
break;
}
x

for(j=0;j {
if(a==49)
{
b=a;
count++;
if(count!=5)
continue;
}
if(count==5)
b='0';
else
b=a;
count=0;
}
printf(\n\t after stuffing:\n\n\t);
for(j=0;j printf(%c,b);
....etc

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This project is about developing a web based mail client connecting to a Linux Server running a Mail Server and with Tomcat
as the Web Server.

The Project has the following main functionality
1. Receiving/Sending/organizing mails using POP3
2. Sending mail using send mail
3. Performing Admin functions like managing new user, resetting passwords etc ....etc

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#include
#include
#include
void main()
{
double p,q,n,m,e,k,z,d1,c1,c2,y;
double d,l,x,c,d2;
clrscr();
printf(The P,Q Primary values:);
scanf(%lf%lf,&p,&q);
n=p*q;
printf(N value is %lf,n);
k=(p-1)*(q-1);
printf(\n K(n) value is:%lf,k);
printf(\n Enter the Integer which is relative to the prime to the K(n));
scanf(%lf,&e);
d2=pow(e,-1);
d=fmod(d2,k);
printf(%lf,&d);
printf(\n Enter the plain text number );
scanf(%lf,&m);
d1=pow(m,e);
c=fm ....etc

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bully algorithm c code for client server communication

Example of Client-Server Program in C (Using Sockets and TCP)
Below you ll find an example of a very simple client-server program in C. Basically the client connects to the server, the server sends the message Hello World , and the client prints the received message.

Keep in mind that I am configuring the settings manually. If you want your code to be IPV4-IPV6 agnostic, IP agnostic and portable to different plataforms you can use the getaddrinfo() function, as explained in this tutori ....etc

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S-DES Algorithm:-

Encryption:- Encryption algorithm takes an 8-bit block of plaintext and 10-bit key as input and produce an 8-bit block of ciphertext as output.
1. Encryption algorithm involves five functions:
1) an initial permutation function (IP)
2) a complex function (fk) which involves both substitution and permutation
3) a simple permutation function (SW) that switches two halves of data
4) the function f again
5) a permutation function that is the inverse of the initial permutation(IP-1).
2. The function fk takes as input ....etc

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to get information about the topicprogram to implement the data page link layer framing method character countrelated topic refer the page link bellow

http://seminarsprojects.net/Thread-program-to-implement-the-data-link-layer-framing-method-bit-stuffing ....etc

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Implementation of RSA Algorithm Using Client-Server
Presented By:
GAUTHAM R

Introduction
In cryptography, RSA (which stands for Rivest, Shamir and Adleman ) is an algorithm for public-key cryptography.
It is the first algorithm known to be suitable for signing as well as encryption.
RSA is widely used in electronic commerce protocols, and is believed to be secure given sufficiently long keys and the use of up-to-date implementations.
Network security threats
Network Security Threats
Cryptography
Security in networking ....etc

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#include
#include
#include
void main()
{
int i,j,k,n,c=0,l;
char s;
clrscr();
printf(\t enter the string \n\t);
gets(s);
l=strlen(s);
printf(\t%d,l);
printf(\n\n);
j=0;
printf( \tenter the frame size: \t );
scanf(%d,&n);
k=l/n;
for(i=0;i {
printf(\t DLESTX);
while(j {

putchar(s);
c++;
j++;
if(c==n)
break;
}
printf( DLESTX \t);
printf(\n\n);
c=0;
}
getch();
....etc

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how to implement and simulate vfa in matlab? Can we get some help in code. ....etc

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