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title: RSA (dw::util::jwt::RSA)
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# RSA (dw::util::jwt::RSA)

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

This module provides functionality to create signed JSON Web Tokens using RSA signatures.

The supported RSA algorithms are:

- RS256

- RS384

- RS512

RSA private keys must be unencrypted `PKCS#1` or `PKCS#8` PEM keys with a modulus of at least 2048
bits.

To use this module, import it to your DataWeave code. For example, by adding the line
`import * from dw::util::jwt::RSA` to the header of your DataWeave script.

_Introduced in DataWeave version 2.6.0._

## Functions

<table><colgroup><col> <col></colgroup><thead><tr><th>Name</th><th>Description</th></tr></thead><tbody><tr><td><p><a href="https://docs.mulesoft.com/dataweave/latest/dw-rsa-functions-jwt">JWT</a></p></td><td><p>Generate JWT with header, payload, and signature by specific algorithm.</p></td></tr></tbody></table>

## Variables

- [RSA Variables](https://docs.mulesoft.com/dataweave/latest/dw-rsa-variables)