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Cryptography and Network Security: Results have been published

For each course, reporting of issues comes with its own deadline (date and time)

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Feedback for Cryptography and Network Security

Dear student

We are glad that you have attended the NPTEL online certification course.

We hope you found the NPTEL Online course useful and have started using NPTEL extensively.

In this regard, we would like to have a feedback from you regarding our course and whether there are any improvements, you would like to suggest.
 
We are enclosing an online feedback form and would request you to spare some of your valuable time to input your observations. Your esteemed input will help us in serving you better.

The link to give your feedback is : http://bit.ly/2uiZTFc



We thank you for your valuable time and feedback.

Thanks & Regards,
NPTEL Team  

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Solution for Week 12 Assignment - Cryptography and Network Security

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Week 12 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

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Best Wishes for the FINAL EXAM

Dear Learners,

Best of luck for your examination!

Regards
Course Admin
NPTEL Team

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Final Exam pattern

Dear learners,

The final exam will be of MCQ type questions like assignments.

There will be total 54 MCQ questions out of which 46 questions are of 2 marks and rest of the questions are of 1 marks.

Please note some questions are drawn from assignments and rest are similar to the assignments questions.

Best of luck for final exam!!

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Cryptography and Network Security : Hall ticket for April 27 & 28, 2019 NPTEL Online Certification exams is now available for download.

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Solution for Week 11 Assignment - Cryptography and Network Security

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Week 11 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

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Week 12 is live now!! - Cryptography and Network Security

Dear students

The lecture videos for Week-12 have been uploaded for the course Cryptography and Network Security. The lectures can be accessed using the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=13&lesson=93

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-12 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=13&assessment=141

The assignment has to be submitted on or before Wednesday, 2019-04-24, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Solution for Week 10 Assignment - Cryptography and Network Security

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Week 10 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

NPTEL

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Week 11 is live now!! - Cryptography and Network Security

Dear students

The lecture videos for Week-11 have been uploaded for the course Cryptography and Network Security . The lectures can be accessed using the following link:https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=12&lesson=86

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-11 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=12&assessment=139

The assignment has to be submitted on or before Wednesday,  2019-04-17, 23:59 IST

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Cryptography and Network Security : Exam Type and Certificate Format

Dear Candidate

Type of exam: Computer based exam 

You will have to appear at the allotted exam center and produce your Hall ticket and Government Photo Identification Card(Example: Driving License, Passport, PAN card, Voter ID, Aadhaar-ID with your Name, date of birth, photograph and signature) for verification and take the exam in person. You can find the allotted exam center details in the hall ticket.

The questions will be on the computer and the answers will have to be entered on the computer; type of questions may include multiple choice questions, fill in the blanks, essay-type answers, etc

The hall ticket will be available for download tentatively around Mid of April 2019. We will notify the same through email.

On-Screen Calculator Demo Link:

Kindly use the below link to get an idea of how the On-screen calculator will work during the exam.

https://tcsion.com/OnlineAssessment/ScientificCalculator/Calculator.html

NOTE: Physical calculators are not allowed inside the exam hall.

 FINAL CERTIFICATE:

The final score = 25% assignment score + 75% final certification exam score.

The final score will determine if you will/will not receive a certificate.

1. Final score < 40%: NO certificate

2. Final score between 40% -59%: Certificate of type "Successfully completing the course"

3. Final score between 60% -74%: Certificate with tag "Elite" printed at the top

4. Final score between 75% -89%: Certificate with tag "Elite" tag and "Silver medal" printed at the top

5. Final score of 90% and above: Certificate with "Elite" tag and "gold medal" printed on it.

-NPTEL Admin

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Solution for Week 9 Assignment - Cryptography and Network Security

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Week 9 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

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Cryptography and Network Security - Week 10 is live now!!

Dear students

The lecture videos for Week-10 have been uploaded for the course Cryptography and Network Security. The lectures can be accessed using the following link:https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=11&lesson=79

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-10 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=11&assessment=137

The assignment has to be submitted on or before Wednesday, 2019-04-10, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Solution for Week 8 Assignment - Cryptography and Network Security

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Week 8 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

NPTEL

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Week 9 is live now!! - Cryptography and Network Security

Dear students

The lecture videos for Week-9 have been uploaded for the course Cryptography and Network Security. The lectures can be accessed using the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=10&lesson=72

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-9 is also uploaded and can be accessed from the following link:https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=10&assessment=135

The assignment has to be submitted on or before Wednesday, 2019-04-03, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Solution for Week 7 Assignment - Cryptography and Network Security

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Week 7 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

NPTEL

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Week 8 is live now!! - Cryptography and Network Security

Dear students

The lecture videos for Week-8 have been uploaded for the course Cryptography and Network Security . The lectures can be accessed using the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=9&lesson=65

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-8 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=9&assessment=133

The assignment has to be submitted on or before Wednesday, 2019-03-27, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Solution for Week 6 Assignment - Cryptography and Network Security

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Week 6 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

NPTEL

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Week 7 is live now!! - Cryptography and Network Security

Dear students

The lecture videos for Week-7 have been uploaded for the course Cryptography and Network Security. The lectures can be accessed using the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=8&lesson=57

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-7 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=8&assessment=131

The assignment has to be submitted on or before Wednesday, 2019-03-20, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Solution for Week 5 Assignment - Cryptography and Network Security

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Clarification of Q1 of assignment 5- Cryptography and Network Security

Dear learner 

AES has defined three versions, with 10,12, and 14 rounds. Each version uses a different cipher key size(128,192,256), but the round keys are always 128 bits.

AES-256 uses 14 rounds and round keys are of 128 bits.

Note: Cipher key size and round key are different term.


So the question is correct.

Thanking You

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Week 5 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

NPTEL

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Week 6 is live now!! - Cryptography and Network Security

Dear students

The lecture videos for Week-6 have been uploaded for the course Cryptography and Network Security . The lectures can be accessed using the following link:https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=7&lesson=51

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week- 6 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=7&assessment=129

The assignment has to be submitted on or before Wednesday, 2019-03-13, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Cryptography and Network Security: Reminder 2 for Exam Registration - April 27, 2019 exams

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Assignment 4 Solution is Available!!!

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Solution for Week 3 Assignment - Cryptography and Network Security

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Week 5 is live now!! - Cryptography and Network Security

Dear students

The lecture videos for Week- 5 have been uploaded for the course Cryptography and Network Security. The lectures can be accessed using the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=6&lesson=45

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-5 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=6&assessment=121

The assignment has to be submitted on or before Wednesday, 2019-03-06, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Week 4 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

NPTEL

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Week 3 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

NPTEL

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Week 4 is live now!! - Cryptography and Network Security

Dear students

The lecture videos for Week-4 have been uploaded for the course Cryptography and Network Security. The lectures can be accessed using the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=5&lesson=39

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-4 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=5&assessment=120

The assignment has to be submitted on or before Wednesday, 2019-02-27, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Solution for Week 1 and 2 Assignment - Cryptography and Network Security

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Week 3 is live now!! - Cryptography and Network Security

Dear students

The lecture videos for Week-3 have been uploaded for the course Cryptography and Network Security. The lectures can be accessed using the following link:https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=4&lesson=32

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-3 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=4&assessment=116

The assignment has to be submitted on or before Wednesday,2019-02-20, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Week 2 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

NPTEL

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Week 2 is live now!! - Cryptography and Network Security

Dear Students,

The lecture videos for Week-2 have been uploaded for the course Cryptography and Network Security. The lectures can be accessed using the following link: https://onlinecourses.nptel.ac.in/noc19_mg17/unit?unit=8&lesson=55

The other lectures in this week are accessible from the navigation bar to the left. Please remember to login into the website to view contents (if you aren't logged in already).

Assignment for Week-2 is also uploaded and can be accessed from the following link: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=3&assessment=115

The assignment has to be submitted on or before Wednesday, 2019-02-13, 23:59 IST.

As we have done so far, please use the discussion forums if you have any questions on this module.

-NPTEL Team

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Week 1 Feedback Form - Cryptography and Network Security

Dear Learners,

Thank you for enrolling to this NPTEL course and we hope you have gone through the contents for this week and also attempted the assignment.

We value your feedback and wish to know how you found the videos and the questions asked - whether they were easy, difficult, as per your expectations, etc.

We shall use this to make the course better and we can also know from the feedback which concepts need more explanation, etc.

Please do spare some time to give your feedback - comprises just 5 questions - should not take more than a minute, but makes a lot of difference for us as we know what the learners feel.

Here is the link to the form: http://nptel.ac.in/noc/nocprofile/super_admin/weekly_feedback/form_login.php

Regards

Course Admin

NPTEL

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Cryptography and Network Security - Reminder 1: REGISTER TODAY - CERTIFICATION EXAM FORM IS NOW OPEN!

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Cryptography and Network Security:Attention for Playfair Cipher

Dear learners,
                    For the case "WHEN BOTH LETTERS OF A PAIR ARE IN DIFFERENT ROW"  each plaintext letter in a pair should be replaced by the letter that lies in its own row and the column occupied by the other plaintext letter.

       Example: "ME" becomes "GD" (in the given example)


So the encryption of "MEET ME AT THE BRIDGEX" should be GD DO GD RQ PR SD HM EM BV. Note that the pair  AT should be encrypted as RQ not QR (has been written  as QR on  board during lecture which is a miscalculation). Similar things applicable for  HM, EM, BV.

In the lecture around 26:24 min, we have shown a slide in which the rule and actual ciphertext is given. 

Also, you can follow the lecture note for further details.

Thanks

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Week 1 assignment is live now!! - Cryptography and Network Security

Dear Learners,

The assignment for week 1 is available in the course outline.

Link to access the assignment: https://onlinecourses.nptel.ac.in/noc19_cs28/unit?unit=2&assessment=114

Due date for the assignment: 2019-02-13, 23:59 IST

Regards

Course Admin

NPTEL

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Reminder: Week 1 videos are live now!! - Cryptography and Network Security

Dear Learners,

The video content for week 1 is made available early for viewing to get an idea about the content but the actual start date remains unchanged.

Happy learning!

Regards

Course Admin

NPTEL

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Week 1 videos are live now!! - Cryptography and Network Security

Dear Learners,

The video content for week 1 is made available early for viewing to get an idea about the content but the actual start date remains unchanged.

Happy learning!

Regards

Course Admin

NPTEL

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ASSIGNMENT-0-RELEASED - Cryptography and Network Security

Dear Learners,

We welcome you all to this course. The assignment 0 has been released. This assignment is based on prerequisite of the course. Kindly note that marks obtained in this assignment will not be considered for the final assessment. You can find the assignment under Week 0 unit on the left-hand side of your screen You can submit the assignment multiple times before the due date. All the best !!           

Regards

Course Admin

NPTEL

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Cryptography and Network Security : REGISTER TODAY - CERTIFICATION EXAM FORM IS NOW OPEN!

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Welcome to NPTEL Online Course: Cryptography and Network Security