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cscg is loooong

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cato447
2026-03-18 05:59:37 +01:00
parent 0c1e63fb3a
commit 7ac813dc0c
1109 changed files with 14511 additions and 0 deletions
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2026/cscg/misc/can-i-have-flag/fingerprint.py Normal file
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import struct
with open("digital-0.bin", "rb") as f:
data = f.read()
# Skip header (already known to be mangled)
offset = 16
# Try Version 0 interpretation
v0_initial_state = struct.unpack_from('<I', data, offset)[0]
v0_begin_time = struct.unpack_from('<d', data, offset + 4)[0]
v0_end_time = struct.unpack_from('<d', data, offset + 12)[0]
v0_num_trans = struct.unpack_from('<Q', data, offset + 20)[0]
print(f"V0: init={v0_initial_state}, begin={v0_begin_time:.4f}, end={v0_end_time:.4f}, transitions={v0_num_trans}")
# Try Version 1 interpretation
v1_chunk_count = struct.unpack_from('<Q', data, offset)[0]
v1_initial_state = struct.unpack_from('<I', data, offset + 8)[0]
v1_sample_rate = struct.unpack_from('<d', data, offset + 12)[0]
v1_begin_time = struct.unpack_from('<d', data, offset + 20)[0]
v1_end_time = struct.unpack_from('<d', data, offset + 28)[0]
v1_num_trans = struct.unpack_from('<Q', data, offset + 36)[0]
print(f"V1: chunks={v1_chunk_count}, init={v1_initial_state}, rate={v1_sample_rate:.0f}, begin={v1_begin_time:.4f}, end={v1_end_time:.4f}, transitions={v1_num_trans}")