Zuora RSA Signatures API
The REST API used in Payment Pages 2.0 are CORS (Cross-Origin Resource Sharing) enabled and therefore requires a digital signature. You can use the [Generate an RSA signature](https://www.zuora.com/redocly-test/api-references/api/operation/POST_RSASignatures/) operation to generate the required digital signature and token for a Payment Pages 2.0 form, then use the [Decrypt an RSA signature](https://www.zuora.com/redocly-test/api-references/api/operation/POST_DecryptRSASignatures/) operation to decrypt the signature to validate the signature and key."