[Resource Topic] 2022/380: A Linear-Time 2-Party Secure Merge Protocol

Welcome to the resource topic for 2022/380

Title:
A Linear-Time 2-Party Secure Merge Protocol

Authors: Brett Hemenway Falk, Rohit Nema, Rafail Ostrovsky

Abstract:

We present a linear-time, space and communication data-oblivious algorithm for securely merging two private, sorted lists into a single sorted, secret-shared list in the two party setting. Although merging two sorted lists can be done insecurely in linear time, previous secure merge algorithms all require super-linear time and communication. A key feature of our construction is a novel method to obliviously traverse permuted lists in sorted order. Our algorithm only requires black-box use of the underlying Additively Homomorphic cryptosystem and generic secure computation schemes for comparison and equality testing.

ePrint: https://eprint.iacr.org/2022/380

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 .