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Replace deprecated & updated functions in bchlib #48

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Replace deprecated & updated functions in bchlib #48

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6 changes: 3 additions & 3 deletions resource/ssba/embed_fingerprints.py
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Original file line number Diff line number Diff line change
Expand Up @@ -199,16 +199,16 @@ def embed_fingerprints():
sec = np.array(sec.cpu())
if FINGERPRINT_SIZE == 100:
BCH_BITS = 5
bch = bchlib.BCH(BCH_POLYNOMIAL, BCH_BITS)
bch = bchlib.BCH(BCH_BITS, BCH_POLYNOMIAL)
packet_binary = "".join([str(int(bit)) for bit in sec[:96]])
elif FINGERPRINT_SIZE == 50:
BCH_BITS = 2
bch = bchlib.BCH(BCH_POLYNOMIAL, BCH_BITS)
bch = bchlib.BCH(BCH_BITS, BCH_POLYNOMIAL)
packet_binary = "".join([str(int(bit)) for bit in sec[:48]])
packet = bytes(int(packet_binary[i: i + 8], 2) for i in range(0, len(packet_binary), 8))
packet = bytearray(packet)
data, ecc = packet[:-bch.ecc_bytes], packet[-bch.ecc_bytes:]
bitflips = bch.decode_inplace(data, ecc)
bitflips = bch.decode(data, ecc)
if bitflips != -1:
try:
correct += 1
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4 changes: 2 additions & 2 deletions resource/ssba/generate_fingerprints.py
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Expand Up @@ -10,14 +10,14 @@
def generate_fingerprints_from_bch(fingerprint_size, secret='abcd'):
if fingerprint_size == 100:
BCH_BITS = 5
bch = bchlib.BCH(BCH_POLYNOMIAL, BCH_BITS)
bch = bchlib.BCH(BCH_BITS, BCH_POLYNOMIAL)
if len(secret) > 7:
print('Error: Can only encode 56bits (7 characters) with ECC')
return
data = bytearray(secret + ' ' * (7 - len(secret)), 'utf-8')#转化为bytearray对象
elif fingerprint_size == 50:
BCH_BITS = 2
bch = bchlib.BCH(BCH_POLYNOMIAL, BCH_BITS)
bch = bchlib.BCH(BCH_BITS, BCH_POLYNOMIAL)
if len(secret) > 4:
print('Error: Can only encode 32bits (4 characters) with ECC')
return
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