Flag:
Python Code:
HTB{4_G00d_Cm05_3x4mpl3}Python Code:
import csv
# Function to process the logic for each row
def process_logic(in0, in1, in2, in3):
# Convert the input values from strings to boolean (True/False)
in0 = bool(int(in0))
in1 = bool(int(in1))
in2 = bool(int(in2))
in3 = bool(int(in3))
# Apply the logic: out = (in0 AND in1) OR (in2 AND in3)
out = (in0 and in1) or (in2 and in3)
return out
# Function to convert a bit stream to an ASCII string
def bit_stream_to_ascii(bit_stream):
# Split the bit stream into chunks of 8 bits (1 byte)
byte_chunks = [bit_stream[i:i+8] for i in range(0, len(bit_stream), 8)]
# Convert each byte chunk to a character
ascii_string = ''.join(chr(int(byte, 2)) for byte in byte_chunks)
return ascii_string
# Open and read the CSV file
with open('input.csv', newline='') as csvfile:
reader = csv.DictReader(csvfile)
# Initialize an empty bit stream
bit_stream = ""
# Process each row
for row in reader:
# Read the inputs from the CSV row
in0 = row['in0']
in1 = row['in1']
in2 = row['in2']
in3 = row['in3']
# Process the logic and compute the output (True -> '1', False -> '0')
result = process_logic(in0, in1, in2, in3)
bit_stream += str(int(result)) # Append the result as '1' or '0' to the bit stream
# Convert the bit stream to an ASCII string
ascii_output = bit_stream_to_ascii(bit_stream)
# Print the ASCII output (this will be readable text)
print(f"Flag:\n{ascii_output}")