Can iPhone Development Certificates be Reused?

I've developed a number of apps for the iOS devices, and now I'm doing freelance work for开发者_运维问答 other companies as well. We're at the point of getting all the certificates created, and I'm not clear on the right steps to take.

I've been invited -- and joined -- the client's Development Team in the iOS Provisioning Portal. There is no Development Certificate for me, however.

Do I need to go through the entire process again to get a new certificate issued, or is there a way to "reuse" the existing certificate I've already got.

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You'll have to have a new development certificate generated by this Development Team you've joined; dev certs are not transferable in that way.

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The "entire process" really isn't much: Use the Keychain to generate a certificate signing request, and then upload the CSR to the portal and wait for an administrator in that development team to approve it. Then download your new certificate.

I suppose it might be possible to re-use the same CSR that you used to generate your old certificate, but there'd be little benefit (you'd still have to upload the CSR and wait for a new certificate) and it might cause a lot of future confusion. Not worth bothering.