Dear Apple Developer Support Team,
I hope this message finds you well.
I am currently utilizing the services at https://identity.apple.com for mobile device management and encountered an issue while attempting to upload a Certificate Signing Request (CSR) file to the portal. The system generated an error indicating that the file format was invalid.
Below are the steps I followed to generate the CSR:
I first created a private key on my server using the following command:
openssl genrsa -out private.key 2048
Next, I generated the CSR file with the following command:
openssl req -new -key private.key -out request.csr
Despite following these steps, I could not successfully upload the CSR file and obtain the APNs certificate. I would greatly appreciate your guidance on creating and uploading a valid CSR file to avoid this error.
Please let me know if there are any specific formatting requirements or additional steps I need to follow. Thank you in advance for your assistance and support.
If, just for the sake of testing, you generate a CSR using Certificate Assistant on the Mac [1], do you still see this problem?
Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
[1] Access this via Keychain Access. If you’re using macOS 15, Keychain Access has been removed from the Utilities folder, but you can easily find it using Spotlight.