Updated Ragger client for get pub key

client/src/ledger_app_clients/ethereum/response_parser.py

@@ -13,3 +13,39 @@ def signature(data: bytes) -> tuple[bytes, bytes, bytes]:
 def challenge(data: bytes) -> int:
     assert len(data) == 4
     return int.from_bytes(data, "big")
+
+def pk_addr(data: bytes, has_chaincode: bool = False):
+    idx = 0
+
+    if len(data) < (idx + 1):
+        return None
+    pk_len = data[idx]
+    idx += 1
+
+    if len(data) < (idx + pk_len):
+        return None
+    pk = data[idx:idx + pk_len]
+    idx += pk_len
+
+    if len(data) < (idx + 1):
+        return None
+    addr_len = data[idx]
+    idx += 1
+
+    if len(data) < (idx + addr_len):
+        return None
+    addr = data[idx:idx + addr_len]
+    idx += addr_len
+
+    if has_chaincode:
+        if len(data) < (idx + 32):
+            return None
+        chaincode = data[idx:idx + 32]
+        idx += 32
+    else:
+        chaincode = None
+
+    if idx != len(data):
+        return None
+
+    return pk, addr.decode(), chaincode