2019独角兽企业重金招聘Python工程师标准>>> 
Run the following openssl command to convert your password-protected p12 file to a pem. openssl will prompt for a password.
openssl pkcs12 -in your-newly-exported-p12-file.p12 -out your-newly-exported-p12-file-as-a-pem.pem -nodes
Run the following command on your pem file to generate the csr.
openssl req -new -key your-newly-exported-p12-file-as-a-pem.pem -out your-csr-to-submit-to-apple.csr
