#!/bin/bash

if [[ -z $1 ]] ; then
	echo "usage: $0 <file.crt>"
	exit 1
fi

FILE=$1

if [[ ! -f $FILE ]] ; then
	echo "File $FILE does not exist"
	exit 2
fi

openssl x509 -in $FILE -noout -text  | grep Subject | tr ',' "\n" | grep x500UniqueIdentifier | tr -d ' ' | cut -d '=' -f 2 -z

exit
\

	| while read B ; do
		#echo $B
		printf "\x$B"
	done
echo