openssl asn1parse -help

saolasosme

Parse an ASN.1 sequence.

$ openssl asn1parse -help
Usage: asn1parse [options]
Valid options are:
 -help            Display this summary
 -inform PEM|DER  input format - one of DER PEM
 -in infile       input file
 -out outfile     output file (output format is always DER)
 -i               indents the output
 -noout           do not produce any output
 -offset +int     offset into file
 -length +int     length of section in file
 -oid infile      file of extra oid definitions
 -dump            unknown data in hex form
 -dlimit +int     dump the first arg bytes of unknown data in hex form
 -strparse +int   offset; a series of these can be used to 'dig'
                  into multiple ASN1 blob wrappings
 -genstr val      string to generate ASN1 structure from
 -genconf val     file to generate ASN1 structure from
                  (-inform  will be ignored)
 -strictpem       do not attempt base64 decode outside PEM markers
 -item val        item to parse and print