How can I programmatically get the Subject Key Identifier as a byte array from an X509 certificate. (Just to show that I tried before posting) I would like the output as a byte array, not text, so tracing the X509_print_fp() gave clues but not an answer. I have the general sense that it's within x509->cert_info_extensions, and that I use NID_subject_key_identifier to extract an extension from the stack. Then I perhaps get the ASN1 object from the extension and from there the value. Any leads?
