RE: how to extract signature from public key using openssl?

[David Schwartz]

  Hi David,

  I've tried the following command, but it failed to load cert:

  $ openssl x509 -outform PEM -inform usercert.pem -pubkey
  bad input format specified for Certificate
  unable to load certificate 

  Thanks,
  Janet
   
  You didn't specify the input format. Try:
  openssl x509 -outform pem -inform pem -pubkey < usercert.pem

  DS