Creating a ad hoc provisional profile without generating yet another public/private keypair

Question

When creating ad hoc provisional profile, it asks for Certificate Signing Request.

It seems it would yet create a new set of public/private key pair? Can I use an existing one?

Below is the instruction given. The step I have in question is "create a name for your private key". I already have two key pairs I wish to use existing ones.

To manually generate a Certificate, you need a Certificate Signing Request (CSR) file from your Mac. To create a CSR file, follow the instructions below to create one using Keychain Access. Create a CSR file.

In the Applications folder on your Mac, open the Utilities folder and launch Keychain Access.

Within the Keychain Access drop down menu, select Keychain Access > Certificate Assistant > Request a Certificate from a Certificate Authority.

In the Certificate Information window, enter the following information:
    In the User Email Address field, enter your email address.
    In the Common Name field, create a name for your private key (e.g., John Doe Dev Key).
    The CA Email Address field should be left empty.
    In the "Request is" group, select the "Saved to disk" option.
Click Continue within Keychain Access to complete the CSR generating process.

Answer 1

You don't need to create Separate Certificate Signing Request (CSR) each time. You can use the same CSR as many time as you can. No problem on using same CSR each time. i use same CSR for creating certificates.

But you have to create at least one time