Add CRC32 support to python client

LedgerHQ · Sep 16, 2024 · 720b679 · 720b679
1 parent 5521206
commit 720b679
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/client/src/ledger_app_clients/ethereum/client.py b/client/src/ledger_app_clients/ethereum/client.py
@@ -1,3 +1,4 @@
+from binascii import crc32
 import rlp
 from enum import IntEnum
 from ragger.backend import BackendInterface
@@ -46,6 +47,7 @@ class NetworkInfoTag(IntEnum):
     NETWORK_TICKER = 0x13
     NETWORK_ICON = 0x14
     SIGNATURE = 0x20
+    CRC32 = 0x21
 
 
 class PKIPubKeyUsage(IntEnum):
@@ -454,6 +456,7 @@ def provide_network_information(self,
             payload += icon
         payload += format_tlv(NetworkInfoTag.SIGNATURE,
                               sign_data(Key.DOMAIN_NAME, payload))
+        # payload += format_tlv(NetworkInfoTag.CRC32, crc32(payload).to_bytes(4, 'big'))
 
         chunks = self._cmd_builder.provide_network_information(payload)
         for chunk in chunks[:-1]: