On Tue, Jan 6, 2015 at 12:04 AM, jack seth <bird_112 at hotmail.com> wrote: > Thanks for the response. First I am running this on Windows 7. Questions > > 1. How can I determine what key format my ca.key is in? If its binary, then its simply ASN.1/DER encoded. If its ASCII (human readable) and starts with MII (IIRC), then its Base64 encoded ASN.1/DER. If its ASCII (human readable) and starts with ----- BEGIN XXX -----, then its PEM. > 2. You say there are multiple key formats for the same key, but for my peace > of mind I would like to get the same key format that I originally had. How > can I do this? Use -outform to control the output encoding. I think the two values of interest are DER and PEM. Jeff