English

Multi-sources Randomness Extraction over Finite Fields and Elliptic Curve

Cryptography and Security 2015-02-03 v1

Abstract

This work is based on the proposal of a deterministic randomness extractor of a random Diffie-Hellman element defined over two prime order multiplicative subgroups of a finite fields Fpn\mathbb{F}_{p^n}, G1G_1 and G2G_2. We show that the least significant bits of a random element in G1G2G_1*G_2, are indistinguishable from a uniform bit-string of the same length. One of the main application of this extractor is to replace the use of hash functions in pairing by the use of a good deterministic randomness extractor.

Keywords

Cite

@article{arxiv.1502.00433,
  title  = {Multi-sources Randomness Extraction over Finite Fields and Elliptic Curve},
  author = {Hortense Boudjou Tchapgnouo and Abdoul Aziz Ciss},
  journal= {arXiv preprint arXiv:1502.00433},
  year   = {2015}
}
R2 v1 2026-06-22T08:18:50.359Z