# Add dependencies
source: https://developer.mastercard.com/mastercard-insurance-programs/documentation/tutorials-and-guides/step3/index.md

## Add oauth1-signer dependency {#add-oauth1-signer-dependency}

This library handles authentication and signing the request.
Latest version number can be found [here](https://search.maven.org/search?q=g:com.mastercard.developer%20AND%20a:oauth1-signer)

```java
<dependency>
    <groupId>com.mastercard.developer</groupId>
    <artifactId>oauth1-signer</artifactId>
    <version>1.5.2</version>
</dependency>
```

## Add request encryption library {#add-request-encryption-library}

This library handles encrypting the request payload.
Latest version number can be found [here](https://search.maven.org/search?q=g:com.mastercard.developer%20AND%20a:client-encryption)

```java
<dependency>
    <groupId>com.mastercard.developer</groupId>
    <artifactId>client-encryption</artifactId>
    <version>1.7.7</version>
</dependency>
```