i’m “playing” arround with my nitokey(s) (HSM and FIDO2)
i get from my Colleague our default CA, as a *.cer and/or a *.crt file, i work/play with thus files on debian (bullseye) and i will convert thus files via OpenSSL x509.
But, i get the “error” msg
ser@debian:~/ca/certs$ sudo openssl x509 -inform der MYWINDOZE-CA.cer -outform MYWINDOZE-CA.pem
x509: Unknown parameter MYWINDOWS-CA.cer
what am i doing wrong? why is cer a wrong parameter? -Do I lack caffeine to understand?
perhaps I need to encapsulate the name of the file?