virtual-labs-archive · somashekhar31 · Dec 3, 2018 · Dec 4, 2018 · Dec 7, 2018 · Dec 7, 2018
diff --git a/css/style.css b/css/style.css
@@ -823,7 +823,7 @@ font-size: 30px;
   margin-top: 2px;
 }
 
-//To move navigation buttons outside use these settings:
+/To move navigation buttons outside use these settings:
 
 #owl-demo .owl-controls .owl-buttons div, #owl-partner-institutions .owl-controls .owl-buttons div{
   position: absolute;

diff --git a/css/style1.css b/css/style1.css
@@ -7,7 +7,7 @@ Description: The theme to accompany the profile site for vlabs.ac.in
 Version: 1.0
 */
 @import url(http://fonts.googleapis.com/css?family=Open+Sans:300);
-/
+
 /*
 try to alter with above URL and check which fit the best
 @import url(http://fonts.googleapis.com/css?family=Open+Sans);
@@ -575,7 +575,7 @@ a:focus
   margin-top: 2px;
 }
 
-//To move navigation buttons outside use these settings:
+/To move navigation buttons outside use these settings:
 
 #owl-demo .owl-controls .owl-buttons div, #owl-partner-institutions .owl-controls .owl-buttons div{
   position: absolute;
@@ -737,8 +737,9 @@ a:focus
 <<<<<<< HEAD
 	font-size: 2.0em;	
 	text-align: left;
-=======
-	font-size: 1.2em;	
+}
+=======	{
+       font-size: 1.2em;	
 >>>>>>> f3b4f22ca1ec6639cf95185650d5427a8bca30ee
 	line-height: normal;
 	color: black;

diff --git a/src/lab/css/style.css b/src/lab/css/style.css
@@ -19,7 +19,7 @@ body
 {
 	margin:0 auto;
 	padding:0
-	width:100%;	
+	width:100px;	
 }
 
 #lab-header, #experiment-header
@@ -229,25 +229,25 @@ nav#lab-article-navigation ul li a:focus, nav#experiment-article-navigation ul l
 	color: #fef4e9;
 	border: solid 1px #da7c0c;
 	background: #f78d1d;
-	background: -webkit-gradient(linear, left top, left bottom, 
-	                              from(#faa51a), to(#f47a20));
-	background: -moz-linear-gradient(top,  #faa51a,  #f47a20);
+	background: -webkit-linear-gradient(top, #faa51a 0%,  #f47a20 100%);
+	                               
+	background: -o-linear-gradient(top,  #faa51a 0%,  #f47a20 100%);
 
 }
 .button:hover 
 {
 	background: #f47c20;
-	background: -webkit-gradient(linear, left top, left bottom, 
-	                              from(#f88e11), to(#f06015));
-	background: -moz-linear-gradient(top,  #f88e11,  #f06015);
+	background: -webkit-linear-gradient(top, #f88e11 0%,#f06015 100%);  
+
+	background: -o-linear-gradient(top,  #f88e11 0%,  #f06015 100%);
 
 }
 
 .button:active 
 {
-	background: -webkit-gradient(linear, left top, left bottom, 
-                              from(#f47a20), to(#faa51a));
-    background: -moz-linear-gradient(top,  #f47a20,  #faa51a);
+	background: -webkit-linear-gradient(top, #f47a20 0%, #faa51a 100%); 
+
+    background: -o-linear-gradient(top,  #f47a20 0%,  #faa51a 100%);
 }
 
 /* basic styles for button size, padding, etc. */

diff --git a/src/lab/exp11/Quizzes.html b/src/lab/exp11/Quizzes.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!DOCTYPE html>
 <html lang="en">
 <head>
 
@@ -110,26 +110,26 @@ <h1 class="text-h2-lightblue">Digital Signatures Scheme</h1><div class="content"
 </li>
 <li>Digital signature uses ______  for generating valid signature
 				<ol class="d">
-<li>Private key </li>
-<li>Public key</li>
-<li>Secret key</li>
-<li>None of the aboove</li>
+<li><input name="quest_645" type="radio" value="Private key "/>Private key </li>
+<li><input name="quest_645" type="radio" value="Private key"/>Private key</li>
+<li><input name="quest_645" type="radio" value="Secret key"/>Secret key</li>
+<li><input name="quest_645" type="radio" value="None of the above"/>None of the above</li>
 </ol>
 </li>
 <li>Verification Algorithm uses ______  for  validating digital signature
 				<ol class="d">
-<li>Private key </li>
-<li>Public key</li>
-<li>Secret key</li>
-<li>None of the aboove</li>
+<li><input name="quest_646" type="radio" value="Private key "/>Private key </li>
+<li><input name="quest_646" type="radio" value="Private key"/>Private key</li>
+<li><input name="quest_646" type="radio" value="Secret key"/>Secret key</li>
+<li><input name="quest_646" type="radio" value="None of the above"/>None of the above</li>
 </ol>
 </li>
 <li>Is digital signature scheme possible without public key cryptography
 				<ol type="d">
-<li>Yes </li>
-<li>No</li>
-<li>May be exist </li>
-<li>None of the aboove</li>
+<li><input name="quest_647" type="radio" value="Yes "/>Yes </li>
+<li><input name="quest_647" type="radio" value="No"/>No</li>
+<li><input name="quest_647" type="radio" value="May be exist "/>May be exist </li>
+<li><input name="quest_647" type="radio" value="None of the above"/>None of the above</li>
 </ol>
 </li>
 <li>

diff --git a/src/lab/js/cbc-mac.js b/src/lab/js/cbc-mac.js
@@ -26,7 +26,7 @@ function isUnsignedInteger(s) {
 }
 
 function rand_sequence(len){
-    ret="";
+   var ret="";
     for(i=0; i<len; i++) {
         ret += (Math.ceil(Math.random()*1000000))%2;
     }
@@ -92,6 +92,9 @@ function next_IV() {
     var text_size = document.getElementById("plaintext").value.length;
     if (text_size > 2*l) {
     	current_l = l;
+        function next_function(new) //any local variable 'new' is created
+{
+}
 	current_function = next_function(l);
     } else {
 	alert("l should not be greater than the (length of plaintext)/2");

diff --git a/src/lab/js/des.js b/src/lab/js/des.js
@@ -279,7 +279,7 @@ function des_round( L, R, KeyR )
 
    // copy the existing L bits, then set new L = old R
    var temp_L = new Array( 33 );
-   for( i=0; i<33; i++ )
+   for( var i=0; i<33; i++ )
    {
       // copy exising L bits
       temp_L[i] = L[i];

diff --git a/src/lab/js/exp1.js b/src/lab/js/exp1.js
@@ -7,8 +7,8 @@ function Shift_Encrypt(src, dst) {
     var plaintext = document.getElementById(src).value.toLowerCase();  
     if(plaintext.length < 1){ alert("please enter some plaintext"); return; }    
     var shift = parseInt(document.getElementById("shift_key").value);
-    ciphertext = "";    var re = /[a-z]/;
-    for(i=0; i<plaintext.length; i++){ 
+   var ciphertext = "";    var re = /[a-z]/;
+    for(var i=0; i<plaintext.length; i++){ 
         if(re.test(plaintext.charAt(i))) ciphertext += String.fromCharCode((plaintext.charCodeAt(i) - 97 + shift)%26 + 97); 
         else ciphertext += plaintext.charAt(i); 
     } 
@@ -21,7 +21,7 @@ function Shift_Decrypt(src,dest) {
     // do some error checking 
     if(ciphertext.length < 1){ alert("please enter some ciphertext (letters only)"); return; }    
     var shift = parseInt(document.getElementById("shift_key").value);
-    plaintext = "";    var re = /[a-z]/;
+    var plaintext = "";    var re = /[a-z]/;
     for(i=0; i<ciphertext.length; i++){ 
         if(re.test(ciphertext.charAt(i))) plaintext += String.fromCharCode((ciphertext.charCodeAt(i) - 97 + 26 - shift)%26 + 97); 
         else plaintext += ciphertext.charAt(i); 

diff --git a/src/lab/js/exp10/base64.js b/src/lab/js/exp10/base64.js
@@ -32,7 +32,7 @@ function b64tohex(s) {
     v = b64map.indexOf(s.charAt(i));
     if(v < 0) continue;
     if(k == 0) {
-      ret += int2char(v >> 2);
+      ret += var int2char(v >> 2);
       slop = v & 3;
       k = 1;
     }

diff --git a/src/lab/js/exp10/jsbn2.js b/src/lab/js/exp10/jsbn2.js
@@ -87,7 +87,9 @@ function bnpFromNumber(a,b,c) {
     else {
       this.fromNumber(a,c);
       if(!this.testBit(a-1))	// force MSB set
+         { var op_or;
         this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this);
+          }
       if(this.isEven()) this.dAddOffset(1,0); // force odd
       while(!this.isProbablePrime(b)) {
         this.dAddOffset(2,0);

diff --git a/src/lab/js/exp10/rsa2.js b/src/lab/js/exp10/rsa2.js
@@ -59,7 +59,7 @@ function RSASetPrivateEx(N,E,D,P,Q,DP,DQ,C) {
 
 // Generate a new random private key B bits long, using public expt E
 function RSAGenerate(B,E) {
-  var rng = new SecureRandom();
+  var rng = new var SecureRandom();
   var qs = B>>1;
   this.e = parseInt(E,16);
   var ee = new BigInteger(E,16);

diff --git a/src/lab/js/exp11/jsbn2.js b/src/lab/js/exp11/jsbn2.js
@@ -87,7 +87,8 @@ function bnpFromNumber(a,b,c) {
     else {
       this.fromNumber(a,c);
       if(!this.testBit(a-1))	// force MSB set
-        this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this);
+       { var op_or;
+       this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this);}
       if(this.isEven()) this.dAddOffset(1,0); // force odd
       while(!this.isProbablePrime(b)) {
         this.dAddOffset(2,0);

diff --git a/src/lab/js/exp11/rsa.js b/src/lab/js/exp11/rsa.js
@@ -4,7 +4,7 @@
 
 // convert a (hex) string to a bignum object
 function parseBigInt(str,r) {
-  return new BigInteger(str,r);
+  return new var BigInteger(str,r);
 }
 
 function linebrk(s,n) {

diff --git a/src/lab/js/exp11/sha1.js b/src/lab/js/exp11/sha1.js
@@ -18,6 +18,50 @@ var b64pad_sha1  = ""; /* base-64 pad character. "=" for strict RFC compliance
  * These are the functions you'll usually want to call
  * They take string arguments and return either hex or base-64 encoded strings
  */
+function str2rstr_utf8(new2)
+{
+
+}
+function  rstr_sha1(new1)
+{
+new1();
+}
+function rstr2hex(new)
+{
+new();
+}
+function rstr2b64(newp)
+{
+newp();
+}
+function  rstr2any(newl,k)
+{
+newl();
+}
+
+
+function rstr_hmac_sha1(newj1,newk1)
+{
+newj1();
+newk1();
+}
+
+function  rstr2hex(newj9,newk9)
+{
+newj9();
+newk9();
+}
+function  rstr2b64(newj7,newk7)
+{
+newj7();
+newk7();
+}
+function  rstr2any(newj6,newk6)
+{
+newj6();
+newk6();
+}
+
 function hex_sha1(s)    { return rstr2hex(rstr_sha1(str2rstr_utf8(s))); }
 function b64_sha1(s)    { return rstr2b64(rstr_sha1(str2rstr_utf8(s))); }
 function any_sha1(s, e) { return rstr2any(rstr_sha1(str2rstr_utf8(s)), e); }
@@ -39,6 +83,17 @@ function sha1_vm_test()
 /*
  * Calculate the SHA1 of a raw string
  */
+function rstr2binb(l)
+{
+}
+function binb_sha1(new1,k)
+{
+new1();
+}
+function  binb2rstr(new)
+{
+new();
+}
 function rstr_sha1(s)
 {
   return binb2rstr(binb_sha1(rstr2binb(s), s.length * 8));
@@ -48,7 +103,9 @@ function rstr_sha1(s)
  * Calculate the HMAC-SHA1 of a key and some data (raw strings)
  */
 function rstr_hmac_sha1(key, data)
+{function rstr2binb(j)
 {
+}
   var bkey = rstr2binb(key);
   if(bkey.length > 16) bkey = binb_sha1(bkey, key.length * 8);
 
@@ -58,7 +115,13 @@ function rstr_hmac_sha1(key, data)
     ipad[i] = bkey[i] ^ 0x36363636;
     opad[i] = bkey[i] ^ 0x5C5C5C5C;
   }
-
+function binb_sha1(k,m)
+{
+}
+  function binb2rstr(new)
+{
+new();
+}
   var hash = binb_sha1(ipad.concat(rstr2binb(data)), 512 + data.length * 8);
   return binb2rstr(binb_sha1(opad.concat(hash), 512 + 160));
 }

diff --git a/src/lab/js/exp2.js b/src/lab/js/exp2.js
@@ -4,18 +4,18 @@ function Mono_Encrypt() {
     if(plaintext.length < 1){ alert("please enter some plaintext (letters and numbers only)"); return; }    
     if(key.length != 26){ alert("key must be 26 characters in length"); return; }
     ciphertext = ""; var re = /[a-z]/; 
-    for(i=0; i<plaintext.length; i++){ 
+    for(var i=0; i<plaintext.length; i++){ 
         if(re.test(plaintext.charAt(i))) ciphertext += key.charAt(plaintext.charCodeAt(i)-97); 
         else  ciphertext += plaintext.charAt(i); 
     } 
     if(document.getElementById("punc").checked) 
         document.getElementById("c").value = ciphertext.replace(/[^a-z]/g,"").replace(/([a-z]{5})/g,"$1 "); 
     else 
-        document.getElementById("c").value = ciphertext; 
+        document.getElementById("c").value = var ciphertext; 
 } 
 
 function Mono_Decrypt(f){ 
-    ciphertext = document.getElementById("c").value.toLowerCase();  
+   var ciphertext = document.getElementById("c").value.toLowerCase();  
     key = document.getElementById("key").value.toLowerCase().replace(/[^a-z]/g, ""); 
     if(ciphertext.length < 1){ alert("please enter some ciphertext (letters only)"); return; }    
     if(key.length != 26){ alert("key must be 26 characters in length"); return; }
@@ -52,13 +52,15 @@ function Next_Mono_Test() {
 }
 
 function CalculateFreq() {
-    var cipherText = document.getElementById("textarea").value.toLowerCase();
-    var freq = new Array(26);
+   var cipherText = document.getElementById("textarea").value.toLowerCase();
+   var freq = new Array(26);
+
     for (var i=0; i<26; i++) {
-	freq[i] = 0;
+	var freq[]=new Array(26);//initialisation
+        freq[i] = 0;
     }
     var astring = "a";
-    var charValOfA = astring.charCodeAt(0);
+         var charValOfA = astring.charCodeAt(0);
     for (var i=0; i<cipherText.length; i++) {
 	var index = cipherText.charCodeAt(i)-charValOfA;
         if(index>=0 && index <= 26) {

diff --git a/src/lab/js/exp6/base64.js b/src/lab/js/exp6/base64.js
@@ -29,7 +29,7 @@ function b64tohex(s) {
   var slop;
   for(i = 0; i < s.length; ++i) {
     if(s.charAt(i) == b64pad) break;
-    v = b64map.indexOf(s.charAt(i));
+ var   v = b64map.indexOf(s.charAt(i));
     if(v < 0) continue;
     if(k == 0) {
       ret += int2char(v >> 2);
@@ -54,7 +54,7 @@ function b64tohex(s) {
     }
   }
   if(k == 1)
-    ret += int2char(slop << 2);
+    ret += var int2char(slop << 2);
   return ret;
 }
 

diff --git a/src/lab/js/exp6/jsbn.js b/src/lab/js/exp6/jsbn.js
@@ -118,7 +118,7 @@ function bnpFromInt(x) {
   this.t = 1;
   this.s = (x<0)?-1:0;
   if(x > 0) this[0] = x;
-  else if(x < -1) this[0] = x+DV;
+  else if(x < -1) this[0] = x+ var DV;
   else this.t = 0;
 }
 

diff --git a/src/lab/js/exp6/jsbn2.js b/src/lab/js/exp6/jsbn2.js
@@ -87,7 +87,8 @@ function bnpFromNumber(a,b,c) {
     else {
       this.fromNumber(a,c);
       if(!this.testBit(a-1))	// force MSB set
-        this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this);
+      {var op_or;  
+      this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this);}
       if(this.isEven()) this.dAddOffset(1,0); // force odd
       while(!this.isProbablePrime(b)) {
         this.dAddOffset(2,0);