class-groups

MPyC: Multiparty Computation in Python

Hierarchical Threshold Signature Scheme

Rust library for building IQC: cryptography based on class groups of imaginary quadratic orders

MPC-TSS is a project to demonstrate the working of our threshold signature scheme leveraging the security of X1 hardware wallet

Artifact associated with CHES 2022 paper https://tches.iacr.org/index.php/TCHES/article/view/9817

CyChain is a non-collusive & massively decentralized access control network. This repository contains the working proof of concept to demonstrate it's scalability.

Python implementation of Class Group algorithms from Cohen (GTM 138)

A scheme to implement finite groups as oblivious data structures. The oblivious operations are defined by a set of secure multiparty computation (MPC) protocols. Practical protocols are presented for the group of quadratic residues, elliptic curves groups and class groups of imaginary quadratic orders.

Threshold Cryptography over Class Groups

An implementation of some mathematics of "Class group of Positive-definite Binary Quadratic Forms" in Python 3

This repository contains the TeX source and PDF of a proof of a conjecture of Franz Lemmermeyer. The result is a reflection principle bounding the p-rank of the class group of one number field in terms of another. I am publishing it here to make it freely available to the public, as I do not plan to submit it to a journal.

Three barrier results for classical RSA semiprime factorization: Joux–Buchmann smoothness, Pell trace compression, and CRT walls. AI-assisted exploratory mathematics.

Browser-based Verifiable Delay Function — repeated modular squaring (y = x^(2^T) mod N) in an RSA group with a Wesolowski short proof. Watch sequential work accrue one squaring at a time, confirm parallel workers don't speed it up, then verify the proof instantly and reveal the trapdoor that collapses the delay.