# Shard

Cregis utilizes advanced <mark style="color:green;">**MPC (Multi-Party Computation)**</mark> shard technology to enhance the security of private keys by dividing them into multiple shards. In a <mark style="color:green;">**single-signature wallet**</mark>, these MPC shards are securely stored across both the local device and a <mark style="color:green;">**Trusted Execution Environment (TEE)**</mark>, ensuring that no single entity holds the complete key. For <mark style="color:green;">**multi-signature wallets**</mark>, the shards are distributed across different local devices, further enhancing security by decentralizing control. Each time a transaction is made, the MPC shards are computed in various locations and combined with those stored in the cloud, ensuring a highly secure and efficient signing process.


---

# Agent Instructions: 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:

```
GET https://support.cregis.com/wallet-and-transactions/shard.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.