Reg : signature and/or required key missing

[Majji SankaraRao]

Hi,

I got the following kernel message after inserting my sample char dev
module into kernel version - 5.3.0-51-generic

*[17866.747927] mychardev: module verification failed: signature and/or
required key missing - tainting kernel*

Please guide me how to solve this issue.

Thanks in advance,
Sankara Rao Majji
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