> For the complete documentation index, see [llms.txt](https://auxo-1.gitbook.io/on-chain-funding-platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://auxo-1.gitbook.io/on-chain-funding-platform/the.md).

# Threshold Homomorphic Encryption

## Overview

Our Threshold Homomorphic Encryption protocol is a fundamental cryptographic module in our platform. This protocol consists of two main algorithms:

* Distributed Key Generation: ensures the secure generation of asymmetric cryptographic keys in a distributed manner, preventing any single entity from having complete access to sensitive key information. The generated keys can be used by the encryption requests and the decryption process is protected by a threshold of response from committee members.
* Homomorphic Encryption: implements an additive homomorphic ElGamal encryption scheme to allow the computation on encrypted data, which enables privacy-preserving features such as Private Funding or Private Voting on our platform

The features of this protocol:

1. Committee Management: Creation and configuration of a key generation committee with a security threshold of T / N members.
2. Key Generation: Committee members contribute their random inputs and computation results to generate encryption public keys.
3. Key Usage: Services can request to use generated keys for their use cases.
4. Threshold (Additive) Homomorphic Encryption: This service allows an arbitrary number of users to encrypt their secret vectors and the sum vector can be computed without decrypting the encryption submissions. And the final results can only be computed after T / N members submitted their response contribution.<br>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://auxo-1.gitbook.io/on-chain-funding-platform/the.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.