Generating Random Bytes in Hexadecimal

hexadecimal_generator.py

# Generate Random Bytes in Hexadecimal
import codecs
import random

# Generate String of Random Characters to be Converted to Hexadecimal
# VALID CHARACTERS: 0-9, a-f
random_number = random.randint(1, 5)
if random_number == 1:
    hex_string_length = 12
elif random_number == 2:
    hex_string_length = 14
elif random_number == 3:
    hex_string_length = 16
elif random_number == 4:
    hex_string_length = 18
elif random_number == 5:
    hex_string_length = 20
# Initialize empty string
hex_string = ""
# Add random characters (0-9, a-f) to our hex string
for i in range(hex_string_length):
    random_number = random.randint(1, 16)
    if random_number == 1:
        hex_string = hex_string + "0"
    elif random_number == 2:
        hex_string = hex_string + "1"
    elif random_number == 3:
        hex_string = hex_string + "2"
    elif random_number == 4:
        hex_string = hex_string + "3"
    elif random_number == 5:
        hex_string = hex_string + "4"
    elif random_number == 6:
        hex_string = hex_string + "5"
    elif random_number == 7:
        hex_string = hex_string + "6"
    elif random_number == 8:
        hex_string = hex_string + "7"
    elif random_number == 9:
        hex_string = hex_string + "8"
    elif random_number == 10:
        hex_string = hex_string + "9"
    elif random_number == 11:
        hex_string = hex_string + "a"
    elif random_number == 12:
        hex_string = hex_string + "b"
    elif random_number == 13:
        hex_string = hex_string + "c"
    elif random_number == 14:
        hex_string = hex_string + "d"
    elif random_number == 15:
        hex_string = hex_string + "e"
    elif random_number == 16:
        hex_string = hex_string + "f"

# convert string to hexadecimal
hexadecimal = codecs.decode(hex_string, 'hex')
# output hexadecimal to the console
print("Hexadecimal Generated: " + str(hexadecimal))