certgen.sh

   1 #!/bin/bash
   2
   3 MYPWD=$(pwd)
   4 umask 0027
   5
   6 echo "cleanup previous run..."
   7 rm -rf output/*
   8 mkdir output/csr output/crt
   9
  10 while read cdline ; do
  11         if [[ $cdline == "" || $cdline == "#"* ]] ; then
  12                 continue
  13         fi
  14
  15         cd $MYPWD
  16         read -a certdata <<< "$cdline"
  17
  18         echo "*** Processing: $(date -Iseconds) - ${certdata[0]} - ${certdata[1]} ***"
  19         if [[ -d "output/${certdata[1]}"  ]] ; then
  20                 echo "*** ERROR - THIS SEEMS TO ALREADY EXIST ***" 1>&2
  21                 echo "*** ABORTED ***" 1>&2
  22                 exit 1
  23         fi
  24
  25         mkdir "output/${certdata[1]}"
  26         chmod o+x "output/${certdata[1]}"
  27
  28         SUBJECT="${certdata[2]}CN=${certdata[1]}/"
  29         CERTGEN_DNS_ALT_NAMES=$(echo "DNS:${certdata[1]},${certdata[3]}" | sed -e 's/,/ DNS:/g')
  30         cat openssl.cnf | sed -e "s/CERTGEN_DNS_ALT_NAMES/${CERTGEN_DNS_ALT_NAMES}/" > /tmp/certgen.cnf
  31
  32         cd "output/${certdata[1]}"
  33         openssl genrsa -out "${certdata[1]}.key" 4096 &> /dev/null
  34         openssl req -new -key "${certdata[1]}.key" -out "${certdata[1]}.csr" -utf8 -batch -subj "${SUBJECT}" -config /tmp/certgen.cnf
  35
  36         if [[ ${certdata[0]} == "CRT" ]] ; then
  37                 openssl x509 -req -signkey "${certdata[1]}.key" -in "${certdata[1]}.csr" -out "${certdata[1]}.crt" -extensions v3_req -extfile /tmp/certgen.cnf \
  38                         -days 365 -sha512 &> /dev/null
  39                 chmod o+r "${certdata[1]}.crt"
  40
  41                 echo -n "${certdata[1]} " >> "${MYPWD}/output/fpfile.txt"
  42                 openssl x509 -in "${certdata[1]}.crt" -fingerprint -noout -sha512 >> "${MYPWD}/output/fpfile.txt"
  43                 echo "" >> "${MYPWD}/output/fpfile.txt"
  44         fi
  45
  46         rm /tmp/certgen.cnf
  47         cd $MYPWD
  48
  49         if [[ ${certdata[0]} == "CRT" ]] ; then
  50                 mv "output/${certdata[1]}" "output/crt/${certdata[1]}"
  51         else
  52                 mv "output/${certdata[1]}" "output/csr/${certdata[1]}"
  53         fi
  54
  55 done < certgen.data
  56
  57 echo "*** DONE ***"
  58 ls -l output/*/ | grep -v "total"
  59