CSR algorithm/size is incorrect.Expected RSA 2048

Question

I am trying to integrate apple pay with braintree. I have followed up the following instructions to enable apple pay in the brain tree. In the first step, if you cl

Answer 1

_{Full disclosure: I work at Braintree. If you have any further questions, feel free to contact our Support team.}

Make sure you're selecting the Apple Pay Certificate option under Production (even if this is for a Sandbox; see the Braintree Apple Pay configuration docs for details) when choosing the type of certificate to add in the Apple Developer portal. Apple Pay CSRs should be generated with ECC, not RSA.

Here's what the CSR prompt screen should look like. Although you'll be uploading the CSR obtained from Braintree instead of generating one, note Apple's specifications for the key: