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989b595119
Converters Paxton Switch2 and Net2 to EM4102 Signed-off-by: Jarek Barwinski <116510448+jareckib@users.noreply.github.com>
57 lines
No EOL
2.3 KiB
Python
57 lines
No EOL
2.3 KiB
Python
# Author - jareckib
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# Based on Equipter's tutorial - Downgrade Paxton Switch2 to EM410x
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import sys
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def hex_to_bin(hex_string):
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return ''.join(format(byte, '08b') for byte in bytearray.fromhex(hex_string))
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def remove_last_two_bits(binary_str):
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return binary_str[:-2]
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def split_into_5bit_chunks(binary_str):
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return [binary_str[i:i+5] for i in range(0, len(binary_str), 5)]
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def remove_parity_bit(chunks):
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return [chunk[1:] for chunk in chunks if len(chunk) == 5]
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def convert_to_decimal(chunks):
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return [int(chunk, 2) for chunk in chunks]
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def process_block(block):
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binary_str = hex_to_bin(block)
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binary_str = remove_last_two_bits(binary_str)
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chunks = split_into_5bit_chunks(binary_str)
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no_parity_chunks = remove_parity_bit(chunks)
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decimal_values = convert_to_decimal(no_parity_chunks)
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return decimal_values
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def calculate_id(blocks):
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all_decimal_values = []
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for block in blocks:
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decimal_values = process_block(block)
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all_decimal_values.extend(decimal_values)
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if len(all_decimal_values) < 15:
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raise ValueError("Error: Not enough data after processing blocks 4, 5, 6, and 7.")
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id_positions = [9, 11, 13, 15, 2, 4, 6, 8]
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id_numbers = [all_decimal_values[pos-1] for pos in id_positions]
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decimal_id = int(''.join(map(str, id_numbers)))
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padded_hex_id = format(decimal_id, 'X').upper().zfill(10)
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return decimal_id, padded_hex_id
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def input_block_data(block_number):
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while True:
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block_data = input("Enter data for block {} (4 bytes in hex): ".format(block_number)).strip()
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if len(block_data) != 8 or not all(c in '0123456789abcdefABCDEF' for c in block_data):
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print("Error: Data must be 4 bytes (8 characters) in hex. Try again.")
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else:
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return block_data
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block_4 = input_block_data(4)
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block_5 = input_block_data(5)
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block_6 = input_block_data(6)
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block_7 = input_block_data(7)
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blocks = [
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block_4,
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block_5,
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block_6,
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block_7,
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]
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try:
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decimal_id, padded_hex_id = calculate_id(blocks)
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print('Calculated data from blocks 4, 5, 6, 7:')
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print('Switch2 ID - decimal: {}'.format(decimal_id))
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print('Switch2 ID - hex: {}'.format(padded_hex_id))
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print('Use the following command in Proxmark3: lf em 410x clone --id {}'.format(padded_hex_id))
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except ValueError as e:
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print(e) |