1 / 2

Fiat-Shamir (modified)

Fiat-Shamir (modified). Zero-Knowledge Identification Protocol Players : Prover P & Verifier V Public (both V & P know): N , I Secret (only P knows): s , such that s 2 mod N = I Production Center Secret: p & q , such that N = pq

teddy
Download Presentation

Fiat-Shamir (modified)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Fiat-Shamir (modified) • Zero-Knowledge Identification Protocol • Players: Prover P & Verifier V • Public (both V & P know): N, I • Secret (only P knows): s, suchthats2 mod N = I • Production Center Secret: p & q, suchthatN = pq • Allows Production Center to support many Provers with the same N • Generate s for any I

  2. Fiat-Shamir (cont.) N,I P (user) V (e.g., system) s rRZ*N; x r2modN x Repeat k times q= 0 1 check: z2x(modN) z2xI(modN) [z2xIq(modN)] z=r z=rsmodN zrsqmodN

More Related