#!/bin/bash

#######################################################################################
#                                       keygen
#######################################################################################
#CREATED BY FAHAD SAEED  on 24 june 2005

########  This script creates the key pairs between the adjacent four  ################
#########################  nodes acccording to the design  ###########################

### The ip of this machine is obtained from the folder auto and the ips of the #########
#######  neighbouring machines are obtained from the folder admin generated by #########
#########                       by the script "ipinrc"                        ##########
#######################################################################################

echo ******************************************************************************** 
echo ***************************  WARNING THIS IS A SECURITY HAZARD *****************
echo ********** Always RUN this script when u are logged in as ADMIN ****************


#######################################################################################
########### Generates key for this node and makes necessary modifications ############
############################ to the .ssh of the admin ################################



###### ips of the adjacent nodes can be obtained from /home/admin

read ip1</home/admin/ip1
read ip2</home/admin/ip2
read ip3</home/admin/ip3
read ip4</home/admin/ip4

echo Generating key pairs for neighbouring ADMINS :-

#user ADMIN is on every node

#### Key pairing for the first node

scp /home/admin/.ssh/id_rsa.pub admin@$ip1:/home/admin/.ssh/authorized_keys3
ssh admin@$ip1 "cat /home/admin/.ssh/authorized_keys3 >> /home/admin/.ssh/authorized_keys2"



####  Key pairing for the second node


scp /home/admin/.ssh/id_rsa.pub admin@$ip2:/home/admin/.ssh/authorized_keys3
ssh admin@$ip2 "cat /home/admin/.ssh/authorized_keys3 >> /home/admin/.ssh/authorized_keys2"

##### KEY pairing for the third node


scp /home/admin/.ssh/id_rsa.pub admin@$ip3:/home/admin/.ssh/authorized_keys3
ssh admin@$ip3 "cat /home/admin/.ssh/authorized_keys3 >> /home/admin/.ssh/authorized_keys2"


##### KEY pairing for the fourth and the last adjacent node


scp /home/admin/.ssh/id_rsa.pub admin@$ip4:/home/admin/.ssh/authorized_keys3
ssh admin@$ip4 "cat /home/admin/.ssh/authorized_keys3 >> /home/admin/.ssh/authorized_keys2"


echo CONGRATS!! KEY pairing complete for this node