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issue #184 #229

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issue #184 #229

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7 changes: 7 additions & 0 deletions src/lab/exp6/Quizzes.html
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
<!-- Custom CSS -->
<link href="../../../css/style.css" rel="stylesheet">
<script type="text/javascript" src = 'tabs.js'></script>
<script type="text/javascript" src = '../js/exp6/quiz_check.js'></script>
<script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>
</head>
<body id="page-top" class="index">
Expand Down Expand Up @@ -105,28 +106,34 @@ <h1 class="text-h2-lightblue">Cryptographic Hash Functions and Applications(HMAC
<li><input name="quest_590" type="radio" value="Weak-collision-resistance"/>Weak-collision-resistance</li>
<li><input name="quest_590" type="radio" value="Strong-collision-resistance "/>Strong-collision-resistance </li>
<li><input name="quest_590" type="radio" value="None"/>None</li>
<p id="q1" style="display:none"></p>
</ol></li>
<li><p>Which criterion Ensures that it must be extremely difficult or impossible to create the message if the message digest is given.</p>
<ol class="d">
<li><input name="quest_591" type="radio" value="One-wayness"/>One-wayness</li>
<li><input name="quest_591" type="radio" value="Weak-collision-resistance"/>Weak-collision-resistance</li>
<li><input name="quest_591" type="radio" value="Strong-collision resistance"/>Strong-collision resistance</li>
<li><input name="quest_591" type="radio" value="None"/>None</li>
<p id="q2" style="display:none"></p>
</ol></li>
<li><p>Consider the function h: {0,1}<sup>8</sup> -&gt; {0,1}<sup>4</sup>. Suppose h(x) = x <sup>xmod 5</sup> mod 16, x in [0, 255]. The collision in h occurs for.</p>
<ol class="d">
<li><input name="quest_594" type="radio" value="(1, 17)"/>(1, 17)</li>
<li><input name="quest_594" type="radio" value="(2, 16)"/>(2, 16)</li>
<li><input name="quest_594" type="radio" value="(1, 16)"/>(1, 16)</li>
<li><input name="quest_594" type="radio" value="(2, 17)"/>(2, 17)</li>
<p id="q3" style="display:none"></p>
</ol></li>
<li><p>The Merkle-Damgard Transform is mainly useful for</p>
<ol class="d">
<li><input name="quest_582" type="radio" value="Converting any fixed-length collision resistant hash function to an arbitrary length collision resistant hash function "/>Converting any fixed-length collision resistant hash function to an arbitrary length collision resistant hash function </li>
<li><input name="quest_582" type="radio" value="Converting arbitrary length hash function to a fixed length hash function "/>Converting arbitrary length hash function to a fixed length hash function </li>
<li><input name="quest_582" type="radio" value="Constructing hash function from random function "/>Constructing hash function from random function </li>
<li><input name="quest_582" type="radio" value="None"/>None</li>
<p id="q4" style="display:none"></p>
</ol></li>
<input type="button" value="Submit MCQ answers" onclick="gradeQuiz()"></input>
<br><br>
<li>Understand HMAC scheme and find a break it using availble source code</li>
<li>Understand Merkel-Damgard transform and Explain,how we are using it for HMAC? </li>
<li>Understand and explain analogy between SHA1 and our dummy HMAC function</li>
Expand Down
33 changes: 33 additions & 0 deletions src/lab/js/exp6/quiz_check.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
function checkAnswer(q_name, ans) {
var q = document.getElementsByName(q_name)
var valid = false
var i = 0
while (!valid && i < q.length) {
if(q[i].checked && i == (ans-1))
valid = true
i++
}
return valid
}

var question_id = new Array("quest_590", "quest_591", "quest_594", "quest_582")
var ans_id = new Array("q1", "q2", "q3", "q4")
var answers = new Array(1, 3, 1, 1);

function gradeQuiz() {
var i;
for(i=0; i<answers.length; i++) {
if(checkAnswer(question_id[i], answers[i])) {
var temp = document.getElementById(ans_id[i])
temp.style.display="block"
temp.innerHTML="Correct"
temp.style.color="Green"
}
else {
var temp = document.getElementById(ans_id[i])
temp.style.display="block"
temp.innerHTML="Incorret, The right answer is option " + answers[i]
temp.style.color="Red"
}
}
}