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Re: How to generate a certificate for an HP printer?

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On 9/22/24 21:02, Charles Curley wrote:
> On Sun, 22 Sep 2024 18:02:30 +0200
> john doe <johndoe65534@mail.com> wrote:
>
>>>> Even if you upgrade the FW?
>>>
>>> I tried upgrading the firmware. I have the latest available,
>>> 20201215.
>>
>> I also have a HP.
>> After entering credentials it allows me to access the advance
>> capabilities of my printer.
>> It allows me among other things to renew the selfsigned cert!
>>
>> To me, this is build-in! ;^)
>
> I did finally find it.
>
> Networking -> Certificates -> Configure
>
> That gives me several options. I then selected "Create a New
> Self-Signed Certificate". That updated the certificate. I now cannot
> print on that printer, even after cycling power.

Do you realy need SSL/TLS for a printer, if your network is secured.

> If I print over the USB
> interface, I hear it spin its wheels, but nothing is printed. I tried
> deleting and re-installing it. No go.
>
> Or I could select "Create a Certificate Request" and hit Next. I filled
> in the details, hit Next. No complaints from the printer. I then used
> copy and paste to save off the cert request. This is a good thing,
> because when I hit "Save" I got several requests for Username and
> Password in a row. I gave up after the 5th such request.
>
> I'm rather frustrated and annoyed.
>

A wild guess, would be that the default cert was signed by a trusted CA,
which could explain why it was working out of the box! ;^)

You could use Letsencrypt to sign your CSR, assuming that you can upload
your signed cert to the printer.

I can access my printer via telnet, which is, sometime less frustrating! ;^)

Good luck I guess!

--
John Doe

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Thread

How to generate a certificate for an HP printer? Charles Curley <charlescurley@charlescurley.com> - 2024-09-21 23:30 +0200
  Re: How to generate a certificate for an HP printer? Jeffrey Walton <noloader@gmail.com> - 2024-09-21 23:40 +0200
    Re: How to generate a certificate for an HP printer? Charles Curley <charlescurley@charlescurley.com> - 2024-09-22 05:00 +0200
  Re: How to generate a certificate for an HP printer? "Alexander V. Makartsev" <avbetev@gmail.com> - 2024-09-22 10:10 +0200
  Re: How to generate a certificate for an HP printer? john doe <johndoe65534@mail.com> - 2024-09-22 16:00 +0200
    Re: How to generate a certificate for an HP printer? Charles Curley <charlescurley@charlescurley.com> - 2024-09-22 17:10 +0200
      Re: How to generate a certificate for an HP printer? john doe <johndoe65534@mail.com> - 2024-09-22 18:10 +0200
        Re: How to generate a certificate for an HP printer? Charles Curley <charlescurley@charlescurley.com> - 2024-09-22 19:10 +0200
        Re: How to generate a certificate for an HP printer? Charles Curley <charlescurley@charlescurley.com> - 2024-09-22 21:10 +0200
          Re: How to generate a certificate for an HP printer? john doe <johndoe65534@mail.com> - 2024-09-22 21:40 +0200
          Re: How to generate a certificate for an HP printer? Jeffrey Walton <noloader@gmail.com> - 2024-09-23 00:00 +0200
            Re: How to generate a certificate for an HP printer? Charles Curley <charlescurley@charlescurley.com> - 2024-09-23 04:00 +0200
          Re: How to generate a certificate for an HP printer? Charles Curley <charlescurley@charlescurley.com> - 2024-09-23 04:10 +0200
            Re: How to generate a certificate for an HP printer? Jeffrey Walton <noloader@gmail.com> - 2024-09-23 05:30 +0200
          Re: How to generate a certificate for an HP printer? Max Nikulin <manikulin@gmail.com> - 2024-09-23 04:20 +0200

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