News
Updated Exam ScheduleWritten on 13.03.19 by Nico Döttling Here is the updated exam schedule, only the timeslot for one person changed (at their own request)
10:00-10:30 Kevin Wednesday, 10.04 10:00-10:30 Bohdan Here is the updated exam schedule, only the timeslot for one person changed (at their own request)
10:00-10:30 Kevin Wednesday, 10.04 10:00-10:30 Bohdan
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Exam DatesWritten on 18.02.19 by Nico Döttling Hi all, 10:00-10:30 Kevin Hi all, 10:00-10:30 Kevin Wednesday, 10.04 10:00-10:30 Bohdan Please let me know soon if you would like to reschedule or if you're indisposed
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Doodle Poll for Exam DatesWritten on 08.02.19 (last change on 08.02.19) by Nico Döttling Here's the doodle vote for the preferred days of the oral exams. Please only mark with no if you really do not have time on a certain day (i.e. not if it is just a bit inconvenient for you) |
Last Q&A Session on Friday 08.02Written on 04.02.19 by Nico Döttling We will have a final Q&A Session Friday art 8:30 |
Q&A Session on FridayWritten on 31.01.19 by Nico Döttling The results from the doodle poll are in. We will meet tomorrow at 12:30 in the usual place. |
Alternative Timeslot for Q&A Session on FridayWritten on 30.01.19 by Nico Döttling Hey everyone, I'm terribly sorry but there's yet another clash of appointments this Friday at our usual timeslot. However, I'd like to do the Q&A session anyway this Friday. Please indicate in the doodle below which timeslots would suit you. Majority… Read more Hey everyone, I'm terribly sorry but there's yet another clash of appointments this Friday at our usual timeslot. However, I'd like to do the Q&A session anyway this Friday. Please indicate in the doodle below which timeslots would suit you. Majority wins. https://doodle.com/poll/svymrkdd4yqh2va3
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Q&A Session Friday 8:30Written on 28.01.19 by Nico Döttling Usual place, usual time |
Exercise tomorrowWritten on 24.01.19 by Nico Döttling Hey everyone, tomorrow 8:30 exercises. We'll discuss exercise sheet 2. |
Another typo on exercise sheet 02Written on 17.01.19 by Nico Döttling In exercise 4 DEC outputs either m or \bot (not 1 or 0). Thx to Bohdan |
No exercises tomorrow 18.01.19Written on 17.01.19 by Nico Döttling Due to a clash of appointments the exercises are postponed to 25.01.19 |
Another update of exercise sheet 2Written on 14.01.19 by Nico Döttling - In Exercise 2 we require the group G to be of prime order (in fact, any composite order with large factors would do) - In Exercise 3 we require that the field F has size 2^\secparam (instead of \secparam)
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Exercise Sheet 2 updatedWritten on 11.01.19 by Nico Döttling Fixed some unclarities: In exercise 2 added the condition m_0 \neq m_1 to the binding property, in exercise 4 a \gamma was missing in the description of DEC. Thanks to Florian and Jesko |
No Exercise this weekWritten on 10.01.19 by Nico Döttling The next exercise/tutorial will be on the 18.01.2019 |
New Exercise Sheet outWritten on 17.12.18 by Nico Döttling It is due the 18.01.19 |
No Exercises on Friday 21.12.18Written on 17.12.18 by Nico Döttling On Friday 21.12.2018 there will be no exercises. Happy Hollidays! |
Exercise Sheet SubmissionWritten on 02.12.18 by Nico Döttling Please submit you exercise sheets here |
Another typo in Exercise Sheet 01 fixedWritten on 19.11.18 by Nico Döttling ... we're getting there :-) |
Exercise Sheet 01 UpdatedWritten on 17.11.18 by Nico Döttling Typos in the exercise sheet have been fixed. Also, due to a suggestion I've added an extra exercise (1b) which shows why we can assume without loss of generality that adversaries are deterministic. |
Exercise Sheet outWritten on 11.11.18 by Nico Döttling The first exercise sheet is out. It is due Friday 07.12.18 |
No Lecture on Monday 12.11.18Written on 10.11.18 by Nico Döttling Due to some unforeseen issues there will be no lecture on Monday 12.11. The next lecture will be on Monday the 19.11 |
Chosen Ciphertext security of modified ElGamalWritten on 05.11.18 by Nico Döttling The result I referenced today can be found here |
ExercisesWritten on 05.11.18 (last change on 05.11.18) by Nico Döttling Exercises will be Friday 8:30 / 8:45 at CISPA 0.06. First time Friday 09.11.18. |
Doodle Poll for ExercisesWritten on 05.11.18 (last change on 05.11.18) by Nico Döttling |
First LectureWritten on 10.10.18 by Nico Döttling Due to a collision with an introduction event on Monday 15.10.18, the first lecture will take place Monday 22.10.18. |
Advanced Public Key Cryptography
Overview
In the past three decades cryptography has taken on tasks above and beyond the basic task of securing point-to-point communication channels: Maintaining the privacy of individuals in databases, secure computation on large datasets and anonymous transactions in blockchains-based currencies to name just a few.
This course will cover the state-of-the-art in public key encryption and discuss some of the guiding challenges and frontier-problems of today.
The following topics will be covered:
- Modelling Security for public key encryption
- Proving security of public key encryption schemes
- Tools for building public key encryption schemes
- Notions of public key encryption with enhanced functionality:
Homomorphic Encryption
Identity-Based Encryption
Attribute-Based Encryption
Functional Encryption
Questions? Don't hesitate to write a mail to "doettling at cispa.saarland"
Prerequisites
Some familiarity with the basics of cryptography is expected, e.g. as provided in the summer-term course "Cryptography".
When and Where
Monday 10:00 - 11:30 in building E9 1 (CISPA), room 0.05 (lecture hall ground floor). First lecture on 22.10.18.
Materials
Lecture Slides
- Lecture 01 Slides
- Lecture 02 Slides -- Annotated
- Lecture 03 Slides -- Annotated
- Lecture 04 Slides -- Annotated
- Lecture 05 same slides as lecture 04 -- Annotated
- Lecture 05 Slides -- Annotated
- Lecture 06 Slides -- Annotated -- Update Annotated
- Lecture 07 Slides -- Annotated
Exercise Slides
- Exercise 01: Introduction to ZK Proofs
- Exercise Notes 02
- Exercise Notes 03
Exercise Sheets
- Exercise Sheet 01 due on Friday 07.12.18
- Exercise Sheet 02 due on Friday 18.01.19