I\'m building a hybrid mobile application which is almost completed and working on testing phase.
My app is working fine on android devices but i need to test my app
For Creating certificate, you need CSR file. For Creating CSR file from Linux, follow the link given below.
How to use Linux openssl to generate CSR for iOS?
Then proceed with https://developer.apple.com/.
For creating p12 file from linux follow the instructions in the below links,
https://www.tbs-certificates.co.uk/FAQ/en/288.html
Creating a .p12 file