Convert .cer to .p12

try this: given you have files as follow:

aps.cer, downloaded from Apple.

app.key, your own private key generated by openssl.

1st, convert the .cer file into .pem format:

openssl x509 -in aps.cer -inform DER -out aps.pem -outform PEM

2nd, use the .pem file and your private .key to generate .p12 file:

openssl pkcs12 -export -out aps.p12 -inkey app.key -in aps.pem

this should prompt to ask a password for this .p12 file.

CF:

aps_developer_identity.cer to p12 without having to export from Key Chain?

Creating a .p12 file

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