app.lisk: Add lisk_verify_message

src/apps/lisk/__init__.py

@@ -1,6 +1,6 @@
 from trezor.wire import register, protobuf_workflow
 from trezor.messages.wire_types import \
-    LiskGetAddress, LiskSignMessage, LiskGetPublicKey
+    LiskGetAddress, LiskSignMessage, LiskVerifyMessage, LiskGetPublicKey
 
 
 def dispatch_LiskGetAddress(*args, **kwargs):
@@ -18,7 +18,13 @@ def dispatch_LiskSignMessage(*args, **kwargs):
     return lisk_sign_message(*args, **kwargs)
 
 
+def dispatch_LiskVerifyMessage(*args, **kwargs):
+    from .verify_message import lisk_verify_message
+    return lisk_verify_message(*args, **kwargs)
+
+
 def boot():
     register(LiskGetPublicKey, protobuf_workflow, dispatch_LiskGetPublicKey)
     register(LiskGetAddress, protobuf_workflow, dispatch_LiskGetAddress)
     register(LiskSignMessage, protobuf_workflow, dispatch_LiskSignMessage)
+    register(LiskVerifyMessage, protobuf_workflow, dispatch_LiskVerifyMessage)

src/apps/lisk/verify_message.py

@@ -0,0 +1,21 @@
+
+async def lisk_verify_message(ctx, msg):
+    from trezor.crypto.curve import ed25519
+    from .helpers import get_address_from_public_key
+    from trezor import  wire
+    from trezor.messages.Success import Success
+    from trezor.messages.FailureType import ProcessError
+    from apps.wallet.verify_message import require_confirm_verify_message
+
+    # Lisk signature can be more than 64 bytes
+    sig = msg.signature[:64]
+    verify = ed25519.verify(msg.public_key, sig, msg.message)
+
+    if not verify:
+        raise wire.FailureError(ProcessError, 'Invalid signature')
+
+    address = get_address_from_public_key(msg.public_key)
+
+    await require_confirm_verify_message(ctx, address, msg.message)
+
+    return Success(message='Message verified')