[Taler] Fwd: [CFRG] factoring integers by CVP and SVP algorithms

[Jeff Burdges]

We’ve some upcoming mathematical excitement for the next months or two folks figure out if this is works and what it actually means.

Begin forwarded message:

From: Thaddee Tyl <thaddee.tyl@gmail.com>

Subject: Re: [CFRG] factoring integers by CVP and SVP algorithms

Date: 3 March 2021 at 19:36:04 CET

To: Watson Ladd <watsonbladd@gmail.com>

Cc: "<cfrg@ietf.org>" <cfrg@ietf.org>

The preprint is clearly incomplete and fragmentary, and a number of places it's quite clear that things just don't work that way without more required justification.

Claus Schorr mistakenly uploaded the wrong file, an outdated draft.

He just uploaded the newest file:
https://eprint.iacr.org/eprint-bin/getfile.pl?entry=2021/232&version=20210303:182120&file=232.pdf

It will surely undergo extreme scrutiny, as it does claim:

This destroys the RSA cryptosystem.

Fun: https://twitter.com/matthew_d_green/status/1366952362053672964

Taler could easily adopt blind Schnorr signatures because the aborts trick in https://eprint.iacr.org/2019/877.pdf meshes with what the refresh protocol does anyways, but withdrawals would then require a refresh-like preliminary round.  

Jeff