Quantum Safe Crytography

#!/bin/bash
################################################################################
##          Scripted by Pranesh L                                             ##
##          Version 1.4.1                                                     ##
##          All dependencies defined.                                         ##
##          SCOPE: QEC Communication Between Endpoints in Private Network     ##
##          TODO: Insert Infura API Key or use private Ethereum node          ##
################################################################################
function getXOR() {
    message_bits=($(echo -n "$1" | xxd -b -c1 | awk '{print $2}'))
    key_bits=($(echo -n "$2" | xxd -b -c1 | awk '{print $2}'))
    result=""
    for ((i=0; i<${#message_bits[@]}; i++)); do
        message_bit=${message_bits[$i]}
        key_bit=${key_bits[$i % ${#key_bits[@]}]}  # Use modulo to wrap around key if it's shorter
        xor_bit=$((message_bit ^ key_bit))
        result+=$xor_bit
    done
    echo $result
}
function convertHexToBinary() {
    if [ $# -eq 0 ]
    then
        echo "Argument(s) not supplied "
    else
        while [ $# -ne 0 ]
        do
            DecNum=`printf "%d" $1`
            Binary=
            Number=$DecNum
            while [ $DecNum -ne 0 ]
            do
                Bit=$(expr $DecNum % 2)
                Binary=$Bit$Binary
                DecNum=$(expr $DecNum / 2)
            done
            echo $Binary
            shift
            unset Binary
        done
    fi
}
echo ""
echo -n "Enter Ethereum Transaction Hash:"
read txn
echo ""
echo -n "Connecting to Ethereum BlockChain Node"
for i in {1..5}
do
  echo -n "."
  sleep 1
done
echo ""
blockMeta=$(curl --no-progress-meter https://mainnet.infura.io/v3/<INSERT-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc": "2.0", "method": "trace_transaction","params": ["'$txn'"],"id": 1}')
echo ""
echo "===========================================================================" 
echo From: $(echo $blockMeta | python3 -c "import sys, json; print(json.load(sys.stdin)['result'][0]['action']['from'])")
echo To: $(echo $blockMeta | python3 -c "import sys, json; print(json.load(sys.stdin)['result'][0]['action']['to'])")
echo Block number: $(echo $blockMeta | python3 -c "import sys, json; print(json.load(sys.stdin)['result'][0]['blockNumber'])")
echo "===========================================================================" 
etherValue=$(echo $blockMeta | python3 -c "import sys, json; print(json.load(sys.stdin)['result'][0]['action']['value'])")
if [ "$etherValue" == "0x0" ]; then
    echo "The Transaction does not transfer Ether (0x0 Ether)"
else
    echo "This Transaction has value of $etherValue Ether"
fi
echo The transactional gas price: $(echo $blockMeta | python3 -c "import sys, json; print(json.load(sys.stdin)['result'][0]['action']['gas'])") Ether
transactData=$(echo $blockMeta | python3 -c "import sys, json; print(json.load(sys.stdin)['result'][0]['action']['input'])")
if [ "$transactData" == "0x0" ] || [ "$transactData" == "0x" ]; then
    echo "The Transaction does not transfer any decentralized app data or NFT"
    echo "Terminating..."
    exit 0
else
    echo "This Transaction contains decentralized data"
fi
echo "===========================================================================" 
echo "Data:"
echo $transactData
echo "==========================================================================="
# Depricated due to the use of captcha
echo -n "Download receipt? [y][n]: "
read choiceR
#
if [ "$choiceR" == "y" ]; then
    curl https://blockexplorer.one/ethereum/mainnet/tx/$txn/receipt --output $txn.pdf
    echo "==========================================================================="
else
    echo "==========================================================================="
fi
echo "Generating Seed Stream from NFT or decentralized data:"
seedStreamHex=${transactData#0x}
seedStream=""
seedStreamArray=($(echo $seedStreamHex | sed -r 's/(....)/\1 /g'))
for i in "${seedStreamArray[@]}"
do
    binary=$(convertHexToBinary "0x"$i)
    echo -n $binary
    seedStream+=$binary
done
echo "" 
echo "===========================================================================" 
echo -n "Encrypt [e] or Decrypt data [d]? "
read choice
if [ "$choice" == "e" ]; then
    echo "Encrypt Text Message"
    echo -n "Enter Message: "
    read message
    binMessage=$(echo $message | perl -lpe '$_=unpack"B*"')
    encrypted=$(getXOR $binMessage $seedStream)
    echo Encrypted Stream:
    echo $encrypted
    echo ""
    echo "===========================================================================" 
    echo -n "Enter IP address of the recipient: "
    read IPadd
    echo $encrypted | nc $IPadd 1234
    echo ""
    echo "Message sent successfully"
    echo ""
elif [ "$choice" == "d" ]; then
    #my IP feature only works inside private network. Listening and Sending port configured to 1234
    myIP=$(ifconfig | grep 'inet 10' | awk '{print $2}')
    echo -n "Your IP is $myIP. "
    echo "Listening for inbound stream..."
    encrypted=""	
    while read enc
    do
        echo "Encrypted stream received"
        encrypted=$enc
    done < <