# Upload eIDAS certificates If you have a data processing agreement with Tink Germany you can use your own QWAC and QSEAL eIDAS certificates in order to encrypt sensitive communications and identify your organizations to users. As a user with admin rights to our cockpit you are in charge of uploading new certificates, activate and, if necessary, delete them. All you need for the upload is: * the certificate itself * the appropriate key * OAuth Redirect URI {% hint style="info" %} If the uploaded certificate is validated successfully the information including the private key is stored encrypted in our database. {% endhint %} There are some banks that require a certificate registration. For Santander (DE) and Raiffeisen/HYPO/VKB (AT) we do an automatic registration for you. PayPal, Kontist and ErsteSparkasse (AT) you need to register the certificate by yourself. After a successful automatic registration, the certificate will be tested and approved by FinTecSystems. After that you will receive an info email and you can activate the certificate. After activation every transaction will be processed with the your own eIDAS certificate. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://guide.xs2a.com/xs2a/integration-cs/getting-started/upload-eidas-certificates.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.