In order for the AEAT to be able to validate the authenticity and integrity of the interoperability queries that you make from your organization, the Spanish Tax Administration Agency requires that each organization send it the public key of the electronic seal certificate with which its queries are signed (the seal that you have given us).
The person responsible for the organization's digital certification service can download the public key of the electronic seal by following the following steps:
1. Access the specific subscriber folder in the “Issued certificates” section and once inside, search for the certificate from the “Search” option:
2. Once you have found the certificate, access it to view the data:
3. In the "Certificate data" section there is the "Certificate" option and in the drop-down menu "Download" will be selected, thus obtaining the public key in .cert or crt format.
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