According to the changes made by Comodo for DCV validation methods, we have updated returned values for API method retrieveOrderSslCertRequest.

The structure of the parameter additionalData is the following now:


There are new fields sha256, fileLocation and fileContents for HTTP(s) validation and dnsrecord and dnsValue for DNS type of validation.

For the cases when you use a previously used CSR for a reissue, renewal or new order, Comodo will add a unique value to the file contents or the DNS record to prevent that the old one is re-used without knowing. An example for a DNS record in such a case:

That is why we highly recommend you to use values returned in the new fields fileContents and dnsValue instead of generating values for DCV validation on your side.

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