Deterministic ECDSA and EdDSA Signatures with Additional Randomness
draft-mattsson-cfrg-det-sigs-with-noise-04
| Document | Type |
Replaced Internet-Draft
(cfrg RG)
Expired & archived
|
|
|---|---|---|---|
| Authors | John Preuß Mattsson , Erik Thormarker , Sini Ruohomaa | ||
| Last updated | 2022-08-05 (Latest revision 2022-02-15) | ||
| Replaced by | draft-irtf-cfrg-det-sigs-with-noise | ||
| RFC stream | Internet Research Task Force (IRTF) | ||
| Intended RFC status | Informational | ||
| Formats | |||
| Additional resources | Mailing list discussion | ||
| Stream | IRTF state | Replaced | |
| Consensus boilerplate | Unknown | ||
| Document shepherd | (None) | ||
| IESG | IESG state | Replaced by draft-irtf-cfrg-det-sigs-with-noise | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
Deterministic elliptic-curve signatures such as deterministic ECDSA and EdDSA have gained popularity over randomized ECDSA as their security do not depend on a source of high-quality randomness. Recent research has however found that implementations of these signature algorithms may be vulnerable to certain side-channel and fault injection attacks due to their determinism. One countermeasure to such attacks is to re-add randomness to the otherwise deterministic calculation of the per-message secret number. This document updates RFC 6979 and RFC 8032 to recommend constructions with additional randomness for deployments where side-channel attacks and fault injection attacks are a concern. The updates are invisible to the validator of the signature and compatible with existing ECDSA and EdDSA validators.
Authors
John Preuß Mattsson
Erik Thormarker
Sini Ruohomaa
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)