simulator nLockTime

shared/ccc.py

@@ -83,7 +83,8 @@ class CCCFeature:
         # a very basic and permissive policy, but non-zero too.
         # - 1BTC per day
         chain = chains.current_chain()
-        return dict(mag=1, vel=144, block_h=chain.ccc_min_block, web2fa='', addrs=[])
+        return dict(mag=1, vel=144, block_h=chain.CCC_MIN_BLOCK,
+                    web2fa='', addrs=[])
 
     @classmethod
     def get_policy(cls):
@@ -145,11 +146,11 @@ class CCCFeature:
                 # this is unix timestamp - not allowed - fail
                 raise CCCPolicyViolationError("nLockTime not height")
 
-            block_h = pol.get("block_h", chains.current_chain().ccc_min_block)
+            block_h = pol.get("block_h", chains.current_chain().CCC_MIN_BLOCK)
             if psbt.lock_time <= block_h:
                 raise CCCPolicyViolationError("rewound")
 
-            # we wont sign txn unless old height + velocity >= new height
+            # we won't sign txn unless old height + velocity >= new height
             if psbt.lock_time < (block_h + velocity):
                 raise CCCPolicyViolationError("velocity")
 

shared/chains.py

@@ -34,7 +34,7 @@ class ChainsBase:
     curve = 'secp256k1'
     menu_name = None        # use 'name' if this isn't defined
     core_name = None        # name of chain's "core" p2p software
-    ccc_min_block = 0       # block height at which CCC feature was developed
+    CCC_MIN_BLOCK = 0       # block height at which CCC feature was developed
 
     # b44_cointype comes from
     #    <https://github.com/satoshilabs/slips/blob/master/slip-0044.md>