[Resource Topic] 2025/2005: Reactive Correctness, sINDCPA-D-Security and Deterministic Evaluation for TFHE

Welcome to the resource topic for 2025/2005

Title:
Reactive Correctness, sINDCPA-D-Security and Deterministic Evaluation for TFHE

Authors: Nigel Smart, Michael Walter

Abstract:

We examine the relationship between correctness definitions for Fully Homomorphic Encryption (FHE) and the associated security definitions. We show that reactive notions of correctness imply INDCPA-D and sINDCPA-D security. But that to obtain both INDCPA-D and sINDCPA-D security we need to use a randomized version of the evaluation procedure. Such randomized evaluation procedures cause problems in real life deployments of FHE solutions, so we then go on to show how one can de-randomize the evaluation procedure and still obtain sINDCPA-D security in the random oracle model for the specific FHE scheme of TFHE.

ePrint: https://eprint.iacr.org/2025/2005

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .