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Cryptography, autumn 2008, TDA351Status: AvslutadÖppen för svar: 2008-12-15 - 2009-01-10 Antal svar: 67 Procent av deltagarna som svarat: 47% Kontaktperson: Björn von Sydow»
Your own effort1. How many hours per week did you spend on this course?We mean total time, that is, it comprises the time you spent in class and the time you spent on your own work. Try to estimate the average time over the entire study period.67 svarande
Genomsnitt: 2.07 - 15 hours is still much too high» (At most 15 hours/week) 2. How large part of the teaching offered did you attend?67 svarande
Genomsnitt: 3.68 - It clashed with the course advanced algorithms 100%» (0%) Goals and goal fulfilmentThe course syllabus states the course goals in terms of learning outcomes, i.e., knowledge, skills and attitudes to be acquired by the student during the course.3. How understandable are the course goals?66 svarande
Genomsnitt: 3.43 - My own goal is to learn everything in the course book, as well as everything in a number of other books.» (I have not seen/read the goals) 4. Are the goals reasonable considering your background and the number of credits?Answer this this question and the succeeding one, only if you do know the course goals.61 svarande
Genomsnitt: 2 - Yet, the time spent on each topic seemed not sufficent. Two hours more exercises would be a great help. This might be because I missed some classes.» (Yes, the goals seem reasonable) 5. Did the examination assess whether you have reached the goals?62 svarande
Genomsnitt: 2.98 - not examined yet.» (I don"t know/have not been examined yet) Teaching and course administration6. To what extent has the teaching been of help for your learning?65 svarande
Genomsnitt: 2.7 - I was not at the lessons» (Small extent) 7. To what extent has the course literature and other material been of help for your learning?65 svarande
Genomsnitt: 2.5 - Did not buy the book» (Small extent) 8. How well did the course administration, web page, handouts etc work?65 svarande
Genomsnitt: 3.5 - They didn"t correct the handouts in reasonable time.» (Very badly) Study climate9. How were the opportunities for asking questions and getting help?66 svarande
Genomsnitt: 3.9 - I didn"t seek much help, but that might have to do with the fact that I was not really sure of whom to ask. Also I think that it good if the lecturer stays in the lecturehall during the break, so that the students can ask questions. This was many times not the case.» (Rather poor) 10. How well has cooperation between you and your fellow students worked?66 svarande
Genomsnitt: 3.68 - I think it would be better to make the project compulsory to do by two persons» (Rather poorly) 11. How was the course workload?66 svarande
Genomsnitt: 3.33 - Can"t really judge this. I attended the classes as much as I could and did some of the exercises» (Adequate) 12. How was the total workload this study period?66 svarande
Genomsnitt: 3.57 - Probabely due to my out-side problems.» (High) Summarizing questions13. What is your general impression of the course?66 svarande
Genomsnitt: 4.1 - the assignments were graded after a very long time. Sometimes it was impossible to make a resubmission because it was evaluated 1-2 day before resubmission date as in elliptic curve homework. The feedback is also very bad, it did not show us any way it just says it is wrong.If a student passes the homework in first time than no problem, but if he had to make a resubmission his job is too difficult in this course.
lecture slides are not helpful. Sometimes i had to read the slides and then write it into wikipedia to understand. Lectures are also not clear. For example in extended euclidean algorithm, instructor solved it wrong in the first attempt in the class and then he tried to solve it again and say something while my mind is confused. I still do not know the way in the lecture i have learned the long calculation method in the book instead. And in none of the slides an expalation for that method. Also for miller rabin and most of the other things.There could be only one way for a student to think that these slides are helpful, if he did not look at cryptography slides in other universities. Despite the fact that i"m not happy with the course, i think the instructor of the course is an open-minded person and he will evaluate our feedbacks about the course and will change the mistakes next year.» (Poor) 14. What should definitely be preserved to next year?- The lecture notes»- Home assignement» - Lectures, home assignments, course web page.» - teaching and home assignment. Because these home work is closely related to the course and help to see practical link between theory and reality.» - Weekly assignments are very good.» - assignments should be preserved » - Björns lectures. Best teacher so far.» - The teacher!» - The labs (in general) were good. » - The assignments. Only a few courses have assignments that are good and fun, this is one of them.» - The slides. Home problem sessions.» - protocols» - The assignments and the lectures were highly motivating and should be kept.» - Good lectures and good workload. » - Good home assignments and good website!» - The course syllabus.» - All the interesting lab assignments.» - The home assignements. They give a better understanding, aswell as the problemsolving sessions.» - First hand-decryption assignment» - RSA and Elgamal lectures on public key cryptography.» - Labs» - i do not see anything as indispensible in the course» - The problem solving sessions» - The assignments!» - the well structured handouts. in particular, that you allow students to download and print out all handouts at the beginning of the study period.» - Home assignments.» - assignments are really good they should be kept.» - The DSS laboration.» - Björns excellent lectures and slides!» - should be more clearer in notes in pdf» 15. What should definitely be changed to next year?- Change the course administration, correct the assignments in time.»- Home assignment/Lab correction was slow.» - Maybe give less mathematical material because i think it is a bit much and sometimes we are somewhat stuck.» - The course should be marked as at least 50% math, if not more, cause that"s what it is. » - There should be more programming assignment and also a new tool if possible» - Having the labs before going through the material in class was not really the best idea. One gets a better understanding if the theory comes before the practice. Also the fourth lab (IDS) was kind of meaningless. I would suggest perhaps a bit more depth.» - Correct assignments in time. No encryption of assignments before handing in. Publish the solution to home problems 24 hours in advance. This enables students to make up their mind, whether they need to attend the exercise lecture.» - Maybe a little more number/group theory to properly explain the intricacies of RSA etc.» - I think the assignments should be a little more advanced.» - nothing» - Although the delays did not matter that much, maybe you should get more course assistants for your own sake. By enforcing a specific style of the assignments, you could also make the correcting mostly automatic.» - In my opinion, all the work done in the home assignments should have any importance in the final score» - Spending more time some extra hours per week.» - 1) Wider range of plaintexts for first assignment. Nearly everyone I talked to had a plaintext from Cherlock Holmes. 2) When you write elgamal or Diffie Hellman or whatever, DO NOT USE capital and little X. This is not readable, instead: Write a FAT X and a normal X, as in vector notation. This makes X x more distinguishable, bot in slides and on the blackboard.» - Less classical ciphers and perhaps more about Elliptic curves.» - lecture slidesshould be more clear and detailed with information the homework graders should perform faster with detailed feedback » - -» - more illustration to elliptic curve cryptography should be added, algorithms for discrete log problem factorization and a lot of others get very complicated and difficult to understand» - Add the proofs! It was always "but we don"t prove this here..." and it made me skip lectures. You don"t have to go through the proofs in the lecture but at least add them as reading material on the webpage.» - More lectures early in the course (when easy and familiar things are discussed) and move all the HA deadlines to one week earlier so no submission in the last week (better spent on exam studies). Clarify som HA descriptions, especially the programming one.» - The strictly math based parts of the course was hard to understand» - not only assignments but some practical experiments» 16. Additional comments- Good course»- It would be nice if questions not relating to the course or simply questions from people not understanding basic computer communication would be handled after classes instead of taking up valuable class time.» - good job Björn! Keep up the good work!» - A really good lecture.» - It would be nice with some more information about recent research in the field (e.g. NIST"s current competition). An advanced course would also be interesting, especially if it includes modern cryptanalysis.» - the exam stick to last week and we haven"t enough time to review course. » - I learned a lot!» - A very good course!!» - Intressant kurs med bra upplägg. Lärorika hemuppgifter och laboration.» - -» - Very good overall course.» - maybe one more person for correcting home assigments. » - You could maby talk about the cryptosystem used in the new creditcards. Could be interessting maybe. » - nothing»
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