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smartcardauth/usr/bin/setupslavecard.sh

502 lines
18 KiB

#!/bin/bash
# Smart Card Management Tool (c) 2009 Timothy Pearson
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# The [secure] temporary directory for authentication
SECURE_DIRECTORY=/tmp/smartauth
# Create the secure directory and lock it down
mkdir -p $SECURE_DIRECTORY
chown root $SECURE_DIRECTORY
chgrp root $SECURE_DIRECTORY
chmod 600 $SECURE_DIRECTORY
SECURE_DIRECTORY=$(mktemp /tmp/smartauth/setupcard.XXXXXXXXXX)
rm -rf $SECURE_DIRECTORY
mkdir -p $SECURE_DIRECTORY
chown root $SECURE_DIRECTORY
chgrp root $SECURE_DIRECTORY
chmod 600 $SECURE_DIRECTORY
# See if required programs are installed
scriptor=$(whereis scriptor)
if [[ $scriptor == "scriptor:" ]]; then
echo "ERROR: scriptor is not installed! This program cannot continue!"
zenity --error --text "ERROR: scriptor is not installed!\nThis program cannot continue!\n\nUsually, scriptor is part of the pcsc-tools package."
exit
fi
opensc=$(whereis opensc-explorer)
if [[ $opensc == "opensc-explorer:" ]]; then
echo "ERROR: opensc-explorer is not installed! This program cannot continue!"
zenity --error --text "ERROR: opensc-explorer is not installed!\nThis program cannot continue!\n\nUsually, opensc-explorer is part of the opensc package."
exit
fi
# Get card ATR
FOUND_SUPPORTED_CARD=0
echo "RESET" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
authokresponse="OK: "
response1=$(cat $SECURE_DIRECTORY/response2 | grep "$authokresponse")
if [[ $response1 != "" ]]; then
cat $SECURE_DIRECTORY/response2 | tr -d '\n' > $SECURE_DIRECTORY/response4
stringtoreplace="Using T=0 protocolRESET> RESET< OK: "
newstring=""
sed -i "s#${stringtoreplace}#${newstring}#g" $SECURE_DIRECTORY/response4
smartatr=$(cat $SECURE_DIRECTORY/response4)
echo "Got ATR: $smartatr"
if [[ $smartatr == "3B BE 18 00 00 41 05 10 00 00 00 00 00 00 00 00 00 90 00 " ]]; then
echo "Detected ACOS5 card"
COMMAND_MODE="acos"
CARD_NICE_NAME="ACOS5"
FOUND_SUPPORTED_CARD=1
fi
if [[ $smartatr == "3B 02 14 50 " ]]; then
echo "Detected Schlumberger CryptoFlex card"
COMMAND_MODE="cryptoflex"
CARD_NICE_NAME="Schlumberger CryptoFlex"
FOUND_SUPPORTED_CARD=1
fi
else
echo "No card detected!"
zenity --error --text "ERROR: No SmartCard detected!"
exit 1
fi
if [[ $FOUND_SUPPORTED_CARD -eq 0 ]]; then
echo "Unsupported SmartCard detected! ATR: $smartatr"
zenity --error --text "ERROR: Unsupported SmartCard detected!\n\nATR: $smartatr"
exit 1
fi
if [[ $COMMAND_MODE == "cryptoflex" ]]; then
GET_CHALLENGE="C0 84 00 00 08"
EXTERNAL_AUTH="C0 82 00 00 07 01"
SELECT_FILE="C0 A4 00 00 02"
DELETE_FILE="F0 E4 00 00 02"
fi
if [[ $COMMAND_MODE == "acos" ]]; then
GET_CHALLENGE="00 84 00 00 08"
EXTERNAL_AUTH="00 82 00 81 08"
SELECT_FILE="00 A4 00 00 02"
DELETE_FILE="00 E4 00 00 00"
READ_BINARY="00 B0 00 00 FF"
UPDATE_BINARY="00 D6 00 00 FF"
ACTIVATE_FILE="00 44 00 00 02"
fi
CREATE_LIFE_CYCLE="01"
createfile ()
{
if [[ $COMMAND_MODE == "cryptoflex" ]]; then
# Create transparent file with permissions:
# delete, terminate, activate, deactivate, update, read for Key 1 and Key 2 only
echo "F0 E0 00 FF 10 FF FF 00 $1 $2 01 3F 44 FF 44 01 03 11 FF 11" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
fi
if [[ $COMMAND_MODE == "acos" ]]; then
# Select MF
echo "00 A4 00 00 00" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
# Select DF 1000 under MF
echo "$SELECT_FILE 10 00" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
# Create transparent file with permissions:
# delete, terminate, activate, deactivate, update, read for Key 1, Key 2, and Key 3 only (SE 04)
# created in DF 1000 under MF, SE file is 10FE
# SIZE TRANSPARENT
echo "00 E0 00 00 1A 62 18 80 02 00 $1 82 01 01 83 02 $2 8A 01 $CREATE_LIFE_CYCLE 8C 08 7F 04 04 04 04 04 04 04" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
echo $(cat $SECURE_DIRECTORY/response2)
fi
}
updatekey ()
{
if [[ $COMMAND_MODE == "cryptoflex" ]]; then
echo "$SELECT_FILE 00 11" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
echo "C0 D6 00 0D 0C 08 00 $1 05 05" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
fi
}
hexcvt ()
{
echo ""$1" "16" o p" | dc
}
authenticatecard () {
if [[ $authenticated != "1" ]]; then
if [[ -e /etc/smartauth/slave.key ]]; then
autkey=$(cat /etc/smartauth/slave.key)
else
autkey=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the 16-character Smart Card transport key [AUT1] in hexidecimal. Example: 0123456789abcdef")
fi
if [[ ${#autkey} -eq 16 ]]; then
if [[ $COMMAND_MODE == "acos" ]]; then
# Select MF
echo "00 A4 00 00 00" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
# Make sure DF 1000 is selected
echo "$SELECT_FILE 10 00" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
fi
# Authenticate card
echo $GET_CHALLENGE > $SECURE_DIRECTORY/authscript
scriptor $SECURE_DIRECTORY/authscript | grep 'Normal processing' > $SECURE_DIRECTORY/challenge
perl -pi -e 's/ //g' $SECURE_DIRECTORY/challenge
perl -pi -e 's/:Normalprocessing.//g' $SECURE_DIRECTORY/challenge
perl -pi -e 's/<//g' $SECURE_DIRECTORY/challenge
xxd -r -p $SECURE_DIRECTORY/challenge $SECURE_DIRECTORY/challenge
# Now DES encrypt the challenge
# Later, change the initialization vector to random if possible
openssl des-ecb -in $SECURE_DIRECTORY/challenge -out $SECURE_DIRECTORY/response -K $autkey -iv 1
if [[ $COMMAND_MODE == "acos" ]]; then
# Truncate to 8 bytes
dd if=$SECURE_DIRECTORY/response of=$SECURE_DIRECTORY/response2 bs=1 count=8
# Expand to standard hex listing format
xxd -g 1 $SECURE_DIRECTORY/response2 $SECURE_DIRECTORY/response
dd if=$SECURE_DIRECTORY/response of=$SECURE_DIRECTORY/response2 bs=1 count=23 skip=9
fi
if [[ $COMMAND_MODE == "cryptoflex" ]]; then
# Truncate to 6 bytes
dd if=$SECURE_DIRECTORY/response of=$SECURE_DIRECTORY/response2 bs=1 count=6
# Expand to standard hex listing format
xxd -g 1 $SECURE_DIRECTORY/response2 $SECURE_DIRECTORY/response
dd if=$SECURE_DIRECTORY/response of=$SECURE_DIRECTORY/response2 bs=1 count=17 skip=9
fi
# Assemble the response file
response2=$(cat $SECURE_DIRECTORY/response2)
response1="$EXTERNAL_AUTH ${response2}"
echo $response1 > $SECURE_DIRECTORY/response
# Send the response!
scriptor $SECURE_DIRECTORY/response > $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
# Get the result
authokresponse="< 90 00 : Normal processing"
response1=$(cat $SECURE_DIRECTORY/response2 | grep "$authokresponse")
echo $response1
if [[ $response1 != "" ]]; then
echo "Smart card validation successfull!"
echo "Smart card login successfull!"
echo $autkey > /etc/smartauth/slave.key
authenticated="1"
else
echo "Login failed"
if [[ -e /etc/smartauth/slave.key ]]; then
rm -f /etc/smartauth/slave.key
authenticatecard
else
zenity --error --text "That transport key is incorrect!\n\nPlease remember that there are a limited number\nof failed login attempts for this key,\nafter which your SmartCard will become useless."
fi
fi
else
echo "AUT1 key not 16 characters!"
zenity --error --text "That transport key is invalid!"
fi
fi
}
get_file () {
if [[ $COMMAND_MODE == "acos" ]]; then
# Select EF $1 under DF 1000
echo "$SELECT_FILE $1" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
# Read binary
echo "$READ_BINARY" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
authokresponse="90 00 : Normal processing"
response1=$(cat $SECURE_DIRECTORY/response2 | grep "$authokresponse")
if [[ $response1 != "" ]]; then
cat $SECURE_DIRECTORY/response2 | tr -d '\n' > $SECURE_DIRECTORY/response4
stringtoreplace="Using T=0 protocol00 B0 00 00 FF> 00 B0 00 00 FF< "
newstring=""
sed -i "s#${stringtoreplace}#${newstring}#g" $SECURE_DIRECTORY/response4
stringtoreplace=" 90 00 : Normal processing."
newstring=""
sed -i "s#${stringtoreplace}#${newstring}#g" $SECURE_DIRECTORY/response4
if [[ $2 == "text" ]]; then
stringtoreplace=" 00"
newstring=""
sed -i "s#${stringtoreplace}#${newstring}#g" $SECURE_DIRECTORY/response4
fi
echo $(cat $SECURE_DIRECTORY/response4)
rm -f $SECURE_DIRECTORY/lukskey
xxd -r -p $SECURE_DIRECTORY/response4 $SECURE_DIRECTORY/lukskey
RESPONSE=$SECURE_DIRECTORY/lukskey
fi
fi
if [[ $COMMAND_MODE == "cryptoflex" ]]; then
FILE=${1/ /}
echo "get $FILE" | opensc-explorer
RESPONSE="3F00_$FILE"
fi
}
update_file () {
if [[ $COMMAND_MODE == "acos" ]]; then
# Select EF $1 under DF 1000
echo "$SELECT_FILE $1" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
# Update existing file
# Zero pad input file
dd if=/dev/zero of=$SECURE_DIRECTORY/response2 bs=1 count=255
dd if=$2 of=$SECURE_DIRECTORY/response2 bs=1 count=255 conv=notrunc
# Truncate to 255 bytes and expand to standard hex listing format
xxd -l 255 -ps -c 1 $SECURE_DIRECTORY/response2 > $SECURE_DIRECTORY/response
cat $SECURE_DIRECTORY/response | tr '\n' ' ' > $SECURE_DIRECTORY/hexready
echo "$UPDATE_BINARY $(cat $SECURE_DIRECTORY/hexready)" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
echo $(cat $SECURE_DIRECTORY/response2)
fi
if [[ $COMMAND_MODE == "cryptoflex" ]]; then
# Delete old file
echo "$DELETE_FILE $1" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
echo $(cat $SECURE_DIRECTORY/response2)
# Create new file
createfile "FF" $1
FILE=${1/ /}
echo "put $FILE $2" | opensc-explorer
fi
}
insertnewtext () {
FOUNDTEXT=$(cat $2 | grep $1)
echo $FOUNDTEXT;
if [[ $FOUNDTEXT != "" ]]; then
echo "$1 already exists in $2"
else
echo $1 >> $2
fi
}
getcolumn () {
perl -ne '@cols = split; print "$cols['$1']\n"' ;
}
function loadusername {
echo "Loading username..."
authenticatecard
if [[ $authenticated = "1" ]]; then
zenity --entry --title="SmartCard Username" --text="Please enter the username of the account to be associated with this SmartCard" > $SECURE_DIRECTORY/username
update_file "10 02" "$SECURE_DIRECTORY/username"
rm -f $SECURE_DIRECTORY/username
fi
}
function loadpassword {
echo "Loading password..."
authenticatecard
if [[ $authenticated = "1" ]]; then
zenity --entry --hide-text --title="SmartCard Password" --text="Please enter the password of the account that is associated with this SmartCard" > $SECURE_DIRECTORY/password
update_file "10 03" "$SECURE_DIRECTORY/password"
rm -f $SECURE_DIRECTORY/password
fi
}
function loadminutes {
echo "Loading minutes..."
authenticatecard
if [[ $authenticated = "1" ]]; then
echo "$(zenity --entry --hide-text --title="SmartCard Computer Minutes" --text="Please enter the number of computer minutes for this SmartCard")" > $SECURE_DIRECTORY/password
update_file "10 05" "$SECURE_DIRECTORY/password"
rm -f $SECURE_DIRECTORY/password
fi
}
function enablerestrictedmode {
echo "Enabling restricted mode..."
authenticatecard
if [[ $authenticated = "1" ]]; then
echo "SLAVE" > $SECURE_DIRECTORY/password
update_file "10 04" "$SECURE_DIRECTORY/password"
rm -f $SECURE_DIRECTORY/password
fi
}
function disablerestrictedmode {
echo "Disabling restricted mode..."
authenticatecard
if [[ $authenticated = "1" ]]; then
echo "NORMAL" > $SECURE_DIRECTORY/password
update_file "10 04" "$SECURE_DIRECTORY/password"
rm -f $SECURE_DIRECTORY/password
fi
}
GREETER="Welcome to the SmartCard slave authentication setup utility!\n\nCard ATR: $smartatr\nDetected: $CARD_NICE_NAME\n\nPlease select an action from the list below:"
while [[ 1 -eq 1 ]]; do
if [[ $# -eq 0 ]]; then
selection=$(zenity --width=400 --height=400 --list --radiolist --title="SmartCard Authentication Setup" \
--text="$GREETER" \
--column="" --column="Action" \
TRUE "Load Computer Minutes into Smart Card [File 1005]" \
FALSE "Enable Restricted Mode [File 1004]" \
FALSE "Disable Restricted Mode [File 1004]" \
FALSE "Load username into Smart Card [File 1002]" \
FALSE "Load password into Smart Card [File 1003]" \
FALSE "Update Smart Card Transport Key [AUT1]");
fi
if [[ $selection = "Load username into Smart Card [File 1002]" ]]; then
loadusername
fi
if [[ $selection = "Load password into Smart Card [File 1003]" ]]; then
loadpassword
fi
if [[ $selection = "Load Computer Minutes into Smart Card [File 1005]" ]]; then
loadminutes
fi
if [[ $selection = "Enable Restricted Mode [File 1004]" ]]; then
enablerestrictedmode
fi
if [[ $selection = "Disable Restricted Mode [File 1004]" ]]; then
disablerestrictedmode
fi
if [[ $selection = "Update Smart Card Transport Key [AUT1]" ]]; then
echo "Updating AUT1..."
authenticatecard
if [[ $authenticated = "1" ]]; then
if [[ $COMMAND_MODE == "acos" ]]; then
# Select MF
echo "00 A4 00 00 00" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
# Select DF 1000 under MF
echo "$SELECT_FILE 10 00" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
# Select EF 10FD under DF 1000
echo "$SELECT_FILE 10 FD" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
# Initialize first key record in file 10FD
# Key 1, 8-byte 1DES authentication only
autkey=""
while [[ ${#autkey} != 16 ]]; do
autkey=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the new 16-character Smart Card transport key [AUT1] in hexidecimal. Example: 0123456789abcdef")
done
autkey2=${autkey:0:2}
autkey2="${autkey2} ${autkey:2:2}"
autkey2="${autkey2} ${autkey:4:2}"
autkey2="${autkey2} ${autkey:6:2}"
autkey2="${autkey2} ${autkey:8:2}"
autkey2="${autkey2} ${autkey:10:2}"
autkey2="${autkey2} ${autkey:12:2}"
autkey2="${autkey2} ${autkey:14:2}"
echo "00 DC 00 00 0C 81 01 55 05 $autkey2" > $SECURE_DIRECTORY/query
scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
echo $(cat $SECURE_DIRECTORY/response2)
fi
if [[ $COMMAND_MODE == "cryptoflex" ]]; then
autkey4=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the new 16-character Smart Card transport key [AUT1] in hexidecimal. Example: 0123456789abcdef")
if [[ ${#autkey4} -eq 16 ]]; then
autkey2=${autkey4:0:2}
autkey2="${autkey2} ${autkey4:2:2}"
autkey2="${autkey2} ${autkey4:4:2}"
autkey2="${autkey2} ${autkey4:6:2}"
autkey2="${autkey2} ${autkey4:8:2}"
autkey2="${autkey2} ${autkey4:10:2}"
autkey2="${autkey2} ${autkey4:12:2}"
autkey2="${autkey2} ${autkey4:14:2}"
echo "Attempting Smart Card key update..."
updatekey ${autkey2}
autkey=$autkey4
if [[ $authenticated = "1" ]]; then
cp -Rp /etc/smartauth/smartauth.sh.in /usr/bin/smartauth.sh
OLDKEY="<your key in hexidecimal>"
authenticatecard
if [[ $authenticated = "1" ]]; then
NEWKEY=$autkey
echo $NEWKEY > /etc/smartauth/smartauth.key
sed -i "s#${OLDKEY}#${NEWKEY}#g" /usr/bin/smartauth.sh
chmod 600 /usr/bin/smartauth.sh
chmod a+x /usr/bin/smartauth.sh
echo "Updating initramfs"
update-initramfs -u -k all
echo "Securing directories..."
chmod 600 "/boot/initrd.img-$(uname -r)"
chmod -R 600 /etc/smartauth
if [ -e "/etc/smartauth/smartauthmon.key" ]; then
selection="Enable automatic login for TDE"
else
echo "TDE login disabled; not altering"
fi
else
zenity --error --text "A SmartCard authentication error has occurred."
fi
else
zenity --error --text "A SmartCard authentication error has occurred."
fi
else
echo "AUT1 key not 16 characters!"
zenity --error --text "The new transport key is invalid!"
fi
fi
fi
fi
if [[ $selection = "" ]]; then
echo "Exiting!"
rm -rf $SECURE_DIRECTORY
chmod -R 600 /etc/smartauth
chown -R root /etc/smartauth
chmod a+x /usr/bin/smartauth.sh
chmod 600 "/boot/initrd.img-$(uname -r)"
chown root "/boot/initrd.img-$(uname -r)"
exit
fi
done