Help with my script

[whimsical1987]

Hi

I have openssl command in the script and I am providing key and iv for the command. I am getting the error

./encryCipher.sh
Enter the input file name:
words
non-hex digit
invalid hex key value

and this is my script

#!/bin/bash

# Key for the openssl
key=01020304050607080910abbccddeeffg
# iv acts as password with Key
iv=0112233445566778

echo "Enter the input file name: "
read inputFile

if [ -e $inputFile".txt" ]
then
    openssl enc -aes-128-cbc -in $inputFile".txt" -out aes128cbc.bin \
	-K $key -iv $iv
else
    echo "Sorry, $inputFile does not exist"
fi

Can some one help me in getting rid of the error.
Thanks