Open a command session in Windows as the administrator.

Move to OpenSSL's bin folder by entering the following command into the command prompt:

cd C:\OpenSSL-Win32\bin

The first step is to convert your development certificate file into a PEM certificate file by entering the following command line statement:

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

For this to work you will need to save the developer_identity.cer file, that you downloaded from the Provisioning Portal to OpenSSL's bin folder.

Now using the PEM file and your private key, generate a valid P12 file by entering:

set RANDFILE=.rnd

followed by:

openssl pkcs12 -export -inkey mykey.key -in developer_identity.pem -out ios_dev.p12

During this process, OpenSSL will ask you to specify an export password. Flash Professional will prompt you for this password while compiling your .swf files into native iOS apps, so choose something you aren't likely to forget. Enter your password and confirm it when OpenSSL asks you to verify it.

If successful, an ios_dev.p12 file will be created in the bin folder. It is important that you keep this file safe as you will need it to publish any of the examples in this book.

Using Windows Explorer, navigate to your Documents folder and create the following folder structure within it: packt\flash-ios-cookbook\developer-files\. This is where we will keep our P12 certificate file from now on.

Copy ios_dev.p12 from C:\OpenSSL-Win32\bin\ to the developer-files folder you just created.