Getting Started with REST {#platform}
=====================================

26.04.01
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How to Set Up Your Cybersource Account
:
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/update-15x75.svg/jcr:content/renditions/original) Updated the set up graphic to support the new SDK integration method. See [How to Set Up REST](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-setup-workflow.md "").

Construct Messages Using JSON Web Tokens
:
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/update-15x75.svg/jcr:content/renditions/original) Updated the body claim field descriptions for the exp , iss , and request-resource-path fields.

    ![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/update-15x75.svg/jcr:content/renditions/original) Updated the JWS body claim field descriptions to include lowercase format requirements. For both updates, see Step 3C in [Construct Messages Using JSON Web Tokens](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-jwt-message-intro/restgs-jwt-const-intro.md "") using a P12 certificate and the [Construct Messages Using JSON Web Tokens](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-jwt-shared-secret-intro/restgs-jwt-con-shared-secret-intro.md "") using a shared secret key pair.

Enable Message-Level Encryption
:
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/update-15x75.svg/jcr:content/renditions/original) Updated the prerequisites list for enabling Messagel-Level Encryption (MLE). See the Prerequisites for MLE section in [Enable Message-Level Encryption](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-jwt-message-intro/restgs-mle-intro.md "") using P12 certificates and [Enable Message-Level Encryption](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-jwt-shared-secret-intro/restgs-mle-shared-secret-intro.md "") using shared secret key pairs.

    ![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/update-15x75.svg/jcr:content/renditions/original) Corrected the spelling for all mentions of the v-c-response-mle-kid body claim field throughout guide.

SDK Integration
:
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added new SDK integration section. See [Set Up a JSON Web Token Message Using the REST SDK](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-sdk-intro.md "").