Sequre (with Shechi)

Sequre and Shechi are an end-to-end, statically compiled and performance engineered, Pythonic framework for building efficient secure multiparty computation (MPC), homomorphic encryption (HE), and multiparty homomorphic encryption (MHE) pipelines in bioinformatics.

Installation

Note: Sequre/Shechi runs only on Linux at the moment.

Install Codon first:

mkdir $HOME/.codon && curl -L https://github.com/exaloop/codon/releases/download/v0.17.0/codon-$(uname -s | awk '{print tolower($0)}')-$(uname -m).tar.gz | tar zxvf - -C $HOME/.codon --strip-components=1

Then install Sequre:

curl -L https://github.com/0xTCG/sequre/releases/download/v0.0.20-alpha/sequre-$(uname -s | awk '{print tolower($0)}')-$(uname -m).tar.gz | tar zxvf - -C $HOME/.codon/lib/codon/plugins

Afterwards, add alias for sequre command:

alias sequre="find . -name 'sock.*' -exec rm {} \; && CODON_DEBUG=lt $HOME/.codon/bin/codon run --disable-opt="core-pythonic-list-addition-opt" -plugin sequre"

Run

Clone the repository:

git clone https://github.com/0xTCG/sequre.git && cd sequre

and check the code in the examples for quick insight into Sequre.

Local run

sequre examples/local_run.codon

This will simulate the run in a two-party setup with a trusted dealer.

Online run

At each party run:

SEQURE_CP_IPS=<ip1>,<ip2>,...,<ipN> sequre examples/online_run.codon <pid>

where <ipN> denotes the IP address of each party and <pid> denotes the ID of the party.

For example, in a two-party setup with a trusted dealer, run (IP addresses are random):

SEQURE_CP_IPS=192.168.0.1,192.168.0.2,192.168.0.3 sequre examples/online_run.codon 0

at a trusted dealer (CP0).

SEQURE_CP_IPS=192.168.0.1,192.168.0.2,192.168.0.3 sequre examples/online_run.codon 1

at the first party (CP1).

SEQURE_CP_IPS=192.168.0.1,192.168.0.2,192.168.0.3 sequre examples/online_run.codon 2

at the second party (CP2).

Release mode

For (much) better performance but without debugging features such as backtrace, add -release flag immediatelly after sequre command:

sequre -release examples/local_run.codon --skip-mhe-setup

Note: --skip-mhe-setup flag disables the homomorphic encryption setup since examples/local_run.codon runs only Sequre (SMC).