Jun 10, 2020 · A natural security requirement for watermarking schemes is collusion resistance, where the adversary's goal is to remove the embedded messages ...

Aug 10, 2020 · In this work, we solve this problem by presenting a generic construction that upgrades a watermarkable PRF without collusion resistance to a collusion ...

Prior constructions of watermarking schemes focus on watermarking cryptographic functions, such as pseudorandom function (PRF), public key encryption, etc.

Duration: 19:50
Posted: Aug 13, 2020

We observe that collusion resistant secure software leasing for watermarkable functions can be achieved as long as the underlying watermarking scheme and ...

Copy-protection is the task of encoding a program into a quantum state to prevent illegal duplications. A line of recent works studied copy-protection ...

... collusion resistant traceable PRF from standard lattice assumptions. Our traceable PRFs directly imply new lattice-based secret-key traitor tracing schemes ...

Collusion Resistant Watermarkable PRFs from Standard Assumptions. 2020Proceedings of the 40th Annual International Cryptology Conference (CRYPTO 2020)590-620.

[GKWW21], we obtain the first fully collusion resistant traceable PRF from standard lattice assumptions. This puts traceable PRFs on par with the best-known ...

First, we examine existing cryptographic watermarking schemes and observe that all of them are vulnerable to collusion attacks. Second, we construct collusion ...