diff --git a/resource/ssba/embed_fingerprints.py b/resource/ssba/embed_fingerprints.py
index c5ac9235..f1c387ad 100644
--- a/resource/ssba/embed_fingerprints.py
+++ b/resource/ssba/embed_fingerprints.py
@@ -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
diff --git a/resource/ssba/generate_fingerprints.py b/resource/ssba/generate_fingerprints.py
index 0bd6f036..08a2bee6 100644
--- a/resource/ssba/generate_fingerprints.py
+++ b/resource/ssba/generate_fingerprints.py
@@ -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