# Secure Information Retrieval

## Introduction

Secure Information Retrieval(SIR) securely retrieves target value(s)
from host. This module is based on [Pohlig
Hellman](https://ee.stanford.edu/~hellman/publications/28.pdf)
commutative encryption and [Hauck Oblivious
Transfer(OT)](https://eprint.iacr.org/2017/1011). 
This module is still in the research stage, has not yet been put into production.

## How to Use

This component can be used to retrieve specific feature value(s) or
label value, with arbitrary security level.

<!-- mkdocs
## Param

::: federatedml.param.sir_param
    rendering:
      heading_level: 3
      show_source: true
      show_root_heading: true
      show_root_toc_entry: false
      show_root_full_path: false
-->

<!-- mkdocs
## Examples

{% include-examples "secure_information_retrieval" %}
-->