> ## Documentation Index
> Fetch the complete documentation index at: https://turnkey-0e7c1f5b-bc-add-sdk-typedoc.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# HpkeAuthEncrypt

# Function: hpkeAuthEncrypt()

> **hpkeAuthEncrypt**(`params`): `Uint8Array`

Defined in: [crypto.ts:138](https://github.com/tkhq/sdk/blob/ee72856c3f450731d7501ab05001215768b71500/packages/crypto/src/crypto.ts#L138)

HPKE Encrypt Function
Encrypts data using Authenticated ,Hybrid Public Key Encryption (HPKE) standard [https://datatracker.ietf.org/doc/rfc9180/](https://datatracker.ietf.org/doc/rfc9180/).

## Parameters

### params

`HpkeAuthEncryptParams`

The encryption parameters including plain text, encapsulated key, and sender private key.

## Returns

`Uint8Array`

* The encrypted data.