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Announcements
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| פרטים לקראת מועד ב' בקריפטולוגיה מודרנית | שלום לכולם,
מועד ב' בקריפטולוגיה מודרנית יערך ביום ב', 19.3.2012, בשעות 17:30 – 20:30 בטאוב 5. המבחן ייערך בכתב, ואין צורך להודיע לנו אם תרצו להגיע אליו.
המבחן יהיה במתכונת דומה למועד א'. הוא יכלול 4 שאלות, את דף העזר ששימש במועד א', וייאסר השימוש בכל חומר עזר נוסף.
אלי יתן שעת קבלה לקראת המבחן, ביום א' הקרוב בשעה 11:00 בטאוב 539.
ההנחיות זהות לאלו של מועד א':
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משך המבחן: שלוש שעות.
במבחן 4 שאלות. ענו על כולן.
חומר עזר מותר לשימוש: דף נוסחאות יחיד שיחולק עם המבחן.
כל חומר עזר אחר אסור לשימוש.
הקדישו את 10 הדקות הראשונות לקריאת כל השאלות והבנתן.
ענו תשובות קצרות וברורות ככל האפשר, ונמקו אותן. השתמשו באלגוריתמים יעילים ככל שתוכלו.
הקצו מראש שני עמודים לכל שאלה, לפי סדר השאלות.
כתבו בצורה מסודרת ונקייה ובכתב ברור. תשובות לא ברורות לא תיבדקנה.
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בהצלחה,
אלי ועמי.
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| Last updated on 14/3/2012, 15:18:11 |
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| Moed B | Hello everyone,
Moed B will take place on Monday, March 19. Those who wish to attend Moed B are kindly requested to contact Ami by the end of this week (March 10).
In case that there will only be a small number of students in Exam B, it will be performed as an oral exam combined with a few written questions.
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Regarding Moed A:
Exam A average: 71. Final A grade average 84.
Appeals should be submitted to the lecturer's (dean's office) mail box at the 5th floor on official appeal forms, along with a copy of the exam and correct answers for the appealed questions, till March 7 at 12:00.
Best regard,
Eli and Ami.
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| Created on 5/3/2012, 23:39:54 |
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| Pseudorandomness Course in the Spring Semester | Hi everyone,
Eli asked me to infrom you about the following.
Ami.
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Pseudorandomness Course in the Spring Semester
Lecturer: Dr. Ariel Gabizon
Course number:236601
Name: pseudorandomness
Time: Thursday 12:30-14:30, probably at room 201
Syllabus:
A pseudorandom object is one that has some nice property a random object would have with high probability. For example, a graph with no large independent sets or cliques.
The field of pseudorandomness aims to explicitly construct such objects.
Such explicit constructions have many applications. A lot of these applications are in what is called derandomization - turning randomized algorithms into deterministic ones without `paying' a lot in space or time.
The course will loosely follow the monograph of Salil Vadhan http://people.seas.harvard.edu/~salil/pseudorandomness/
See also
http://www.cs.technion.ac.il/courses/all/211/236601.pdf |
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| Created on 21/2/2012, 22:21:46 |
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| דף עזר מעודכן והנחיות למבחן | שלום לכולם,
כפי שאתם וודאי זוכרים, ביום ד' הקרוב בשעה 9:00 בבוקר יערך המבחן בקריפטולוגיה מודרנית, בטאוב 5.
דף העזר למבחן עודכן, וגרסה חדשה שלו מופיעה באתר. נוספו מספר טענות לגבי חבורות, ושלושה נושאים חדשים: חתימות אר-אס-איי, שיתוף סוד ופונקציות תמצות. תודה לדניאל על התוספות.
דף העזר יחולק עם המבחן, ואין צורך להביא עמכם עותק שלו.
להזכירכם, אלי יתן שעת קבלה לקראת המבחן, מחר ב-11:00 בטאוב 539.
להלן ההנחיות למבחן, כפי שתופענה בדף השער שלו:
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משך המבחן: שלוש שעות.
במבחן 4 שאלות. ענו על כולן.
חומר עזר מותר לשימוש: דף נוסחאות יחיד שיחולק עם המבחן.
כל חומר עזר אחר אסור לשימוש.
הקדישו את 10 הדקות הראשונות לקריאת כל השאלות והבנתן.
ענו תשובות קצרות וברורות ככל האפשר, ונמקו אותן. השתמשו באלגוריתמים יעילים ככל שתוכלו.
הקצו מראש שני עמודים לכל שאלה, לפי סדר השאלות.
כתבו בצורה מסודרת ונקייה ובכתב ברור. תשובות לא ברורות לא תיבדקנה.
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בהצלחה,
אלי ועמי. |
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| Last updated on 20/2/2012, 22:20:39 |
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| Rooms for the reception hours | Hi Everyone,
The reception hours will be held as follows:
Sunday 19/2, 14:00, in Taub 701, Ami;
Tuesday 21/2, 11:00, in Taub 539, Eli.
The exam will take place on Wednesday 22/2, 09:00, in Taub 5.
Good luck!
Ami.
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| Created on 18/2/2012, 20:34:19 |
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| Home Assigmnents | Hi everyone,
Assignments 5 and 6 were returned to the secretaries.
Their grades, along with the weighted average of all the assignments (bounded by 100), are now available on the site.
Ami. |
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| Created on 12/2/2012, 14:56:45 |
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| Moed A details | Hello Everyone,
Moed A will take place on Wednesday, February the 22th no 9:00 at Taub 5. The exam will contain 3-4 questions and will take 3 hours. All the material taught in the lectures, tutorials and homework may be included.
No written material or calculators are allowed in the exam. On the other hand, one of the questions will be same or similar to a question taken from the exams of the past seven years (October 2004 and on). If we will refer to complicated protocols taught in class, we will cite them.
A summary page will be included in the exam (do not bring it with you), and it can be found under the "Course Material" section on the site. If you have suggestions or comments regarding it, please mail them to Ami.
Office hours:
Ami: Sunday 19/2 at 14:00.
Eli: Tuesday 21/2 at 11:00.
Rooms will be announced later.
Good luck,
Eli and Ami.
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| Last updated on 10/2/2012, 03:11:11 |
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| A new assignment on the site, not for submission | Hi everyone,
A new assignment is now on the site. It contains a question regarding differential cryptography and a question about secret sharing, two subject that where not covered completely in the mandatory assignments.
This assignment is not for submission.
Ami. |
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| Created on 31/1/2012, 12:23:31 |
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| Exercise 6 is now published | Hello everyone,
Exercise 6 is now published, and due Tuesday in two weeks (the last day of the semester) by noon.
At the tutorial yesterday we want over a question about the "Fiat-Shamir" protocol, that was taken from the exam of Winter11, Moad A.
If I didn't make it clear, this protocol is *perfect* zero knowledge: the distribution of the transcripts generated by the simulator is the same as the distribution of real transcripts, since the random bit distribution is the same.
See you next week,
Ami. |
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| Last updated on 18/1/2012, 10:12:51 |
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| HW4 is checked | HW4 is now checked and graded. The assignments will be returned to the secretaries tomorrow morning.
Have a good weekend,
Ami.
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| Created on 11/1/2012, 21:59:18 |
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| Prime Number Races | "There’s nothing quite like a day at the races... The quickening of the pulse as the starter’s pistol sounds, the thrill when your favorite contestant speeds out into the lead (or the distress if another contestant dashes out ahead of yours), and the accompanying fear (or hope) that the leader might change. And what if the race is a marathon?"
This is the opening of an interesting introductory article (see below), titled "Prime Number Races". There you can find the answer to questions brought up in class regarding the relative distribution of primes of the forms p=4q+1 and p=4q+3, as well as many other questions regarding the distribution of prime numbers.
http://tinyurl.com/PrimeRaces
Have a good weekend,
Ami. |
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| Last updated on 6/1/2012, 14:32:15 |
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| Exercise 5 is now online | Hi,
Exercise 5 is now online, due Tuesday two weeks from now at 12:00.
Good luck,
Ami.
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| Created on 4/1/2012, 17:58:16 |
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| HW3 is now checked and will be returned to the secretaries on Sunday | |
| Created on 29/12/2011, 13:29:16 |
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| Exercise 4 - a minor clerafication | Hi everyone,
I rephrased question 4 of assignment 4, in order to clarify it. A new version is now available online.
Hag Sameach,
Ami.
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| Created on 22/12/2011, 17:39:18 |
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| Rescheduling Ami's reception hour this week | Hi everyone,
I will not give my regular reception hour this Tuasday. Instead, I will give a reception hour on Thursday, 12:30.
This is a one time change.
In this week's tutorial we will go over some more properties of RSA, as well as some randomized algorithms.
Next week Tuesday is "matkonet Sunday", so we will not meet.
See you,
Ami.
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| Last updated on 18/12/2011, 16:49:39 |
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| Exercise 4 published | Hi everyone,
Exercise 4 is now on the site. It is a long exercise, with a weight of 1.5 assignments. It is due in three weeks, Tuesday, Jan. 3rd at 12:00 or at the tutorial.
Two smaller assignments will be published during January.
Good luck,
Ami.
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| Created on 14/12/2011, 01:40:19 |
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| Exercise 2 is now checked | Exercise 2 is now checked, graded, and returned to the secretaries.
No more late submission will be accepted.
See you tomorrow,
Ami. |
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| Created on 5/12/2011, 12:16:04 |
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| Exercise 3 is online | Hi,
Exercise 3 is now published, due in two weeks.
On the tutorial this week we will discuss quadratic residues, with the slides titled "Number Theory 2".
See you,
Ami. |
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| Created on 4/12/2011, 15:53:58 |
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| Crypto tutorial - at the regular time and place this week | Hi everybody,
This week, finally, we'll have the tutorial in Modern Cryptology on Tuesday at 13:30, in Taub 5.
We'll solve some exam questions about hashing.
I will give a reception hour before the tutorial, at 12:30, at my office at Taub 211.
See you,
Ami.
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| Last updated on 27/11/2011, 21:45:11 |
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| Crypto tutorial this week | Hi,
This Tuesday we will meet once again at 12:30 for two hours, at Taub 8.
We will go over DES with the slides from the lecture, devise attacks on DES with the tutorial slides, and learn a bit about AES with the relevant pages, listed as "Rijndael.pdf" in the tutorials page.
If it's fine by everyone, we will start meeting regularly at 12:30 instead of 13:30. If you prefer to keep the original time, please E-Mail me as soon as possible, and I promise not to tell anyone...
See you,
Ami. |
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| Last updated on 21/11/2011, 01:30:52 |
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| Cryptology tutorial tomorrow will be given at Taub 8 | Hi Everyone,
Tomorrow we will have a two-hour tutorial, starting 12:30, at Taub 8.
Note the unusual location.
Ami.
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| Created on 14/11/2011, 19:50:41 |
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| Tutorials this week, and a new HW assignment | Hello everyone,
As talked in class, this week we will have a complementary tutorial right before the regular tutorial. At the first hour we will continue discussing Number Theory (1), and on the second hour we will go back to the first chapter, namely Classic Cryptography.
I will let you know tomorrow about the location, and also leave a note at our regular class (5) on Tuesday.
We will probably have another complementary tutorial next week at the same time.
* Exercise 2 is now published, and is due in two weeks. *
See you all on Tuesday, 12:30,
Ami. |
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| Created on 13/11/2011, 15:47:00 |
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| Modern Cryptology: First tutorial on Tuesday - Number Theory 1 | Hi everyone,
We will have our first tutorial in modern cryptology on Tuesday. The subject will be *Number Theory 1*, the second on the list. You may want to bring it with you to class.
We will also set a time for supplemental tutorials, so please bring your schedules with you.
Ami. |
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| Last updated on 7/11/2011, 01:23:20 |
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| Reception hour tomorrow at 12:30 | Hi everyone,
As you might have heard, the strike is over.
Since you have a homework assignment for Sunday, I'll give a reception hour tomorrow, Thursday 12:30-13:30, at my office, Taub 211.
We'll set a regular time at the first tutorial.
See you,
Ami.
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| Created on 2/11/2011, 19:32:07 |
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| Exercise 1 is now published, due 6/11 at 14:00 | Exercise 1 is now published under the "Assignments" tab, and is due Sunday, 6/11 at 14:00.
You can already start solving it, as it is based on material from the Modern Algebra course.
Good luck! |
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| Created on 23/10/2011, 20:35:03 |
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| Welcome to Modern Cryptology (236506) | Hello everyone, and welcome to the Modern Cryptology course!
The updated slides for the first lectures and tutorials are now on the site, and you may want to bring them with you to class.
As you probably know, the Teaching Staff Organization announced a strike. If the strike continues, there will be no tutorial on Tuesday. The lecture will be given in any case.
If you see this message on the website but did not get an E-Mail, you're probably not registered to the site, and you should manually register on the Auto Update tab.
See You,
Ami. |
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| Last updated on 23/10/2011, 19:07:12 |
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Technion - Israel Institute of Technology 
