News
No meeting on 13.05Written on 07.05.21 by Lucjan Hanzlik Dear All, we will not have a meeting next week because of holidays. So our next round of presentation will be on the 20.05. Have a nice weekend, Lucjan Hanzlik |
Zoom linkWritten on 29.04.21 by Lucjan Hanzlik Dear All, attached please find the zoom link. We will be using this meeting room for all our meeting. ------------------------------------------------------------------------------------------------------------------------------------------ Topic: Introduction to Digital and… Read more Dear All, attached please find the zoom link. We will be using this meeting room for all our meeting. ------------------------------------------------------------------------------------------------------------------------------------------ Topic: Introduction to Digital and Privacy-Preserving Signatures - Proseminar Join Zoom Meeting Meeting ID: 983 2769 7564
------------------------------------------------------------------------------------------------------------------------------------------ Best, Lucjan Hanzlik |
Kick-off Meeting LinkWritten on 22.04.21 by Lucjan Hanzlik Topic: IDPSS Kick-off meeting Time: Apr 22, 2021 04:15 PM Amsterdam, Berlin, Rome, Stockholm, Vienna Join Zoom Meeting https://cispa-de.zoom.us/j/96334328574?pwd=TzVIaUQydWV3c28wbHdOQml6VHh0QT09 Meeting ID: 963 3432 8574 Passcode: 5b!Z+Z |
Introduction to Digital and Privacy-Preserving Signatures
Digital signatures are a basic cryptographic building block that ensures authenticity (who signed) and integrity (what is signed) of messages.
The goal of this proseminar is to improve the presentation skills of students and at the same time learn about digital signatures and schemes
that relax the above properties to increase the privacy of signers. We will discuss seminal research papers introducing among others:
standard signatures, short signatures, lattice based signatures, ring signatures, group signatures, and blind signatures.
Each week two students will present their assigned paper, followed by a group discussion about the presentation and the paper
(it is highly encouraged that all students have read the paper). After the first round, there will be a second round where students
will present their improved presentation and only the second round will be graded.
The kick-off meeting will be during the first week of lectures. The proseminar will be held in English and remotely via Zoom.
Logistics
Time: Thursdays 16:15-17:45 (Kick-off meeting 22.04)
Venue
Zoom
Instructor
Lucjan Hanzlik (lucjan.hanzlik@cispa.de)
Topics
Standard Signatures
1. Rivest, Shamir, Adleman: A method for obtaining digital signatures and public-key cryptosystems (alternatively link1 and link2)
2. Fiat, Shamir: How to Prove Yourself: Practical Solutions to Identification and Signature Problems
3. Schnorr: Efficient Identification and Signatures for Smart Cards
4. Johnson, Menezes: Elliptic curve DSA (ECDSA): an enhanced DSA
Advanced Signatures
5. Boneh, Lynn, Shacham: Short Signatures from the Weil Pairing
6. Boneh, Boyen: Short Signatures Without Random Oracles
7. Lyubashevsky: Fiat-Shamir with Aborts: Applications to Lattice and Factoring-Based Signatures
8. Ducas, Kiltz, Lepoint, Lyubashevsky, Schwabe, Seiler, Stehlé: CRYSTALS-Dilithium: A Lattice-Based Digital Signature Scheme
Privacy-Preserving Signatures
9. Rivest, Shamir, Rivest: How to Leak a Secret
10. Bellare, Micciancio, Warinschi: Foundations of Group Signatures: Formal Definitions, Simplified Requirements, and a Construction Based on General Assumptions
11. Chaum, Fiat, Naor: Blind Signatures for Untraceable Payments (alternative link) and Untraceable Electronic Cash (2 short papers on the same topic)
12. Lai, Ronge, Ruffing, Schröder, Aravinda, Wang: Omniring: Scaling Private Payments Without Trusted Setup