Fix Compatability with some really old blockchain.info wallets

btcrecover/btcrpass.py

@@ -2185,18 +2185,19 @@ def _parse_encrypted_blockchain_wallet(data):
             raise ValueError("Can't base64-decode Blockchain wallet: "+str(e))
         if len(data) < 32:
             raise ValueError("Encrypted Blockchain data is too short")
-        if len(data) % 16 != 0:
-            raise ValueError("Encrypted Blockchain data length is not divisible by the encryption blocksize (16)")
+        #Used to check if the length of the decrypted data was divisible by 16, but this wasn't actually true for all v0 wallets
+        #if len(data) % 16 != 0:
+        #    raise ValueError("Encrypted Blockchain data length is not divisible by the encryption blocksize (16)")
 
         # If this is (possibly) a v0.0 (a.k.a. v1) wallet file, check that the encrypted data
         # looks random, otherwise this could be some other type of base64-encoded file such
         # as a MultiBit key file (it should be safe to skip this test for v2.0+ wallets)
         if not iter_count:  # if this is a v0.0 wallet
             # The likelihood of of finding a valid encrypted blockchain wallet (even at its minimum length
             # of about 500 bytes) with less than 7.4 bits of entropy per byte is less than 1 in 10^6
-            # (decreased test below to 7.1 after being shown a wallet with 7.1 entropy bits)
+            # (decreased test below to 7.0 after being shown a wallet with 7.0 entropy bits)
             entropy_bits = est_entropy_bits(data)
-            if entropy_bits < 7.1:
+            if entropy_bits < 7.0:
                 raise ValueError("Doesn't look random enough to be an encrypted Blockchain wallet (only {:.1f} bits of entropy per byte)".format(entropy_bits))
 
         return data, iter_count  # iter_count == 0 for v0 wallets

btcrecover/test/test-wallets/blockchain-v0.0-march2012-uncompressed-wallet.aes.json

@@ -0,0 +1 @@
+Tex1TnplnL/WmUoNRYDBDdwfK9g7WwBqixcqu8PwSh6G9wRqHfLQ9yWQ6+aDmqSfwVlJvkTrQPwdfOhtDl9hctGffmlclGOeJs/G+QmnbGosgTViqQs/LLOroSm658w/PaQx5Eo/AQ5LSj42X+HcCzGWjNHf6tJM92WO68tWq0gzc/cRDS4yO6t+Rj2Fnm+AiAtrkGi7DHjKlCdDUMqdzF5MsPfJ6TdRoz4xDVHrDoNkDHQVn8I5xRC8YMGCL4TjsLK8idN/gTIous2yiVlkTG3Jf5a97VZEUgYLsd9HHarInDLl5n1i1QP7/ATz3ViAVegZx8/J

btcrecover/test/test_passwords.py

@@ -1346,6 +1346,10 @@ def test_blockchain_github_v1_3_secondpass(self):
     def test_blockchain_v0_Jan2014(self):
         self.wallet_tester("blockchain-v0.0-Jan2014-wallet.aes.json", correct_pass="testblockchain")
 
+    @skipUnless(can_load_pycrypto,  "requires PyCryptoDome")
+    def test_blockchain_v0_Mar2012_uncompressed(self):
+        self.wallet_tester("blockchain-v0.0-march2012-uncompressed-wallet.aes.json", correct_pass="inmydreams")
+
     @skipUnless(can_load_pycrypto,  "requires PyCryptoDome")
     def test_blockchain_v3_Jan2021(self):
         self.wallet_tester("blockchain-v3.0-Jan2021-Android.json", correct_pass="Testing123!")