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Apr 15, 2021 at 17:51 comment added FractalSpace (4 year later) @ɹɐqʞɐzoɹǝɟ The private key can be anything (same one or new). The issuer does not know about it and does not care. It is however good idea and opportunity to use a new key, just in case old one could have been compromised.
Jun 8, 2017 at 11:54 comment added ɹɐqʞɐ zoɹǝɟ how to keep the same public key for the new csr ? do we need to use same private key for generation, or need anything other than this? please help
Jan 28, 2016 at 23:17 comment added Florian Bidabé Also, as the owner of the remote device, you can either download a new CSR that the device generated for you, or regenerate a private key and CSR. If you cannot connect to this device and do not have access to the existing private key, then you cannot generate a new CSR, therefore you cannot re-issue a new certificate. The only issue that remains here is that you are either locked out of your own device or do not own this device.
Jan 28, 2016 at 21:45 comment added Florian Bidabé All right, then your last chance is to find the CSR that was generated with this Private key. If you have lost our don't have access to this CSR, you are in a dead end.
Jan 28, 2016 at 21:42 comment added NPC As mentioned in the question, i do not have access to private key, but i want newly generated certificate to work with existing private key.
Jan 27, 2016 at 21:39 history answered Florian Bidabé CC BY-SA 3.0