wallet/nem: init, get_address

SConscript.firmware

@@ -27,6 +27,7 @@ CPPDEFINES_MOD += [
     'RAND_PLATFORM_INDEPENDENT',
     ('USE_KECCAK', '1'),
     ('USE_ETHEREUM', '1'),
+    ('USE_NEM', '1'),
 ]
 SOURCE_MOD += [
     'embed/extmod/modtrezorcrypto/modtrezorcrypto.c',
@@ -38,6 +39,7 @@ SOURCE_MOD += [
     'vendor/trezor-crypto/aes/aes_modes.c',
     'vendor/trezor-crypto/aes/aestab.c',
     'vendor/trezor-crypto/base58.c',
+    'vendor/trezor-crypto/base32.c',
     'vendor/trezor-crypto/bignum.c',
     'vendor/trezor-crypto/bip32.c',
     'vendor/trezor-crypto/bip39.c',
@@ -63,6 +65,7 @@ SOURCE_MOD += [
     'vendor/trezor-crypto/hasher.c',
     'vendor/trezor-crypto/hmac.c',
     'vendor/trezor-crypto/memzero.c',
+    'vendor/trezor-crypto/nem.c',
     'vendor/trezor-crypto/nist256p1.c',
     'vendor/trezor-crypto/pbkdf2.c',
     'vendor/trezor-crypto/rand.c',

SConscript.unix

@@ -25,6 +25,7 @@ CPPDEFINES_MOD += [
     'AES_192',
     ('USE_KECCAK', '1'),
     ('USE_ETHEREUM', '1'),
+    ('USE_NEM', '1'),
 ]
 SOURCE_MOD += [
     'embed/extmod/modtrezorcrypto/modtrezorcrypto.c',
@@ -35,6 +36,7 @@ SOURCE_MOD += [
     'vendor/trezor-crypto/aes/aes_modes.c',
     'vendor/trezor-crypto/aes/aestab.c',
     'vendor/trezor-crypto/base58.c',
+    'vendor/trezor-crypto/base32.c',
     'vendor/trezor-crypto/bignum.c',
     'vendor/trezor-crypto/bip32.c',
     'vendor/trezor-crypto/bip39.c',
@@ -67,6 +69,7 @@ SOURCE_MOD += [
     'vendor/trezor-crypto/secp256k1.c',
     'vendor/trezor-crypto/sha2.c',
     'vendor/trezor-crypto/sha3.c',
+    'vendor/trezor-crypto/nem.c',
 ]
 
 # modtrezorio

embed/extmod/modtrezorcrypto/modtrezorcrypto-bip32.h

@@ -39,6 +39,7 @@ STATIC const mp_obj_type_t mod_trezorcrypto_HDNode_type;
 
 #define XPUB_MAXLEN 128
 #define ADDRESS_MAXLEN 36
+#define NEM_ADDRESS_SIZE 40
 
 /// def __init__(self,
 ///              depth: int,
@@ -313,6 +314,20 @@ STATIC mp_obj_t mod_trezorcrypto_HDNode_address(mp_obj_t self, mp_obj_t version)
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorcrypto_HDNode_address_obj, mod_trezorcrypto_HDNode_address);
 
+/// def nem_address(self, network: int) -> str:
+///     '''
+///     Compute a NEM address string from the HD node.
+///     '''
+STATIC mp_obj_t mod_trezorcrypto_HDNode_nem_address(mp_obj_t self, mp_obj_t network) {
+    mp_obj_HDNode_t *o = MP_OBJ_TO_PTR(self);
+
+    uint8_t n = mp_obj_get_int_truncated(network);
+    char address[NEM_ADDRESS_SIZE];
+    hdnode_get_nem_address(&o->hdnode, n, address);
+    return mp_obj_new_str(address, strlen(address), false);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorcrypto_HDNode_nem_address_obj, mod_trezorcrypto_HDNode_nem_address);
+
 /// def ethereum_pubkeyhash(self) -> bytes:
 ///     '''
 ///     Compute an Ethereum pubkeyhash (aka address) from the HD node.
@@ -340,6 +355,7 @@ STATIC const mp_rom_map_elem_t mod_trezorcrypto_HDNode_locals_dict_table[] = {
     { MP_ROM_QSTR(MP_QSTR_private_key), MP_ROM_PTR(&mod_trezorcrypto_HDNode_private_key_obj) },
     { MP_ROM_QSTR(MP_QSTR_public_key), MP_ROM_PTR(&mod_trezorcrypto_HDNode_public_key_obj) },
     { MP_ROM_QSTR(MP_QSTR_address), MP_ROM_PTR(&mod_trezorcrypto_HDNode_address_obj) },
+    { MP_ROM_QSTR(MP_QSTR_nem_address), MP_ROM_PTR(&mod_trezorcrypto_HDNode_nem_address_obj) },
     { MP_ROM_QSTR(MP_QSTR_ethereum_pubkeyhash), MP_ROM_PTR(&mod_trezorcrypto_HDNode_ethereum_pubkeyhash_obj) },
 };
 STATIC MP_DEFINE_CONST_DICT(mod_trezorcrypto_HDNode_locals_dict, mod_trezorcrypto_HDNode_locals_dict_table);

mocks/generated/trezorconfig.py

@@ -7,6 +7,12 @@ def init() -> None:
     called from this module!
     '''
 
+# extmod/modtrezorconfig/modtrezorconfig.c
+def check_pin(pin: int, waitcallback: (int, int -> None)) -> bool:
+    '''
+    Check the given PIN. Returns True on success, False on failure.
+    '''
+
 # extmod/modtrezorconfig/modtrezorconfig.c
 def unlock(pin: int, waitcallback: (int, int -> None)) -> bool:
     '''

mocks/generated/trezorcrypto.py

@@ -93,6 +93,11 @@ class HDNode:
         Compute a base58-encoded address string from the HD node.
         '''
 
+    def nem_address(self, network: int) -> str:
+        '''
+        Compute a NEM address string from the HD node.
+        '''
+
     def ethereum_pubkeyhash(self) -> bytes:
         '''
         Compute an Ethereum pubkeyhash (aka address) from the HD node.

mocks/generated/trezorio.py

@@ -128,14 +128,17 @@ class USB:
     '''
 
     def __init__(self,
+                 device_class: int=0,
+                 device_subclass: int=0,
+                 device_protocol: int=0,
                  vendor_id: int,
                  product_id: int,
                  release_num: int,
                  manufacturer: str='',
                  product: str='',
                  serial_number: str='',
-                 configuration: str='',
-                 interface: str='') -> None:
+                 interface: str='',
+                 usb21_enabled: bool=True) -> None:
         '''
         '''
 

mocks/generated/trezorui.py

@@ -112,7 +112,7 @@ class Display:
         Call without the xy parameter to just perform the read of the value.
         '''
 
-    def save(self, filename: str) -> None:
+    def save(self, prefix: str) -> None:
         '''
-        Saves current display contents to file filename.
+        Saves current display contents to PNG file with given prefix.
         '''

mocks/generated/trezorutils.py

@@ -24,3 +24,21 @@ def halt(msg: str = None) -> None:
     '''
     Halts execution.
     '''
+
+# extmod/modtrezorutils/modtrezorutils.c
+def set_mode_unprivileged() -> None:
+    '''
+    Set unprivileged mode.
+    '''
+
+# extmod/modtrezorutils/modtrezorutils.c
+def symbol(name: str) -> str/int/None:
+    '''
+    Retrieve internal symbol.
+    '''
+
+# extmod/modtrezorutils/modtrezorutils.c
+def model() -> str:
+    '''
+    Return which hardware model we are running on.
+    '''

src/apps/nem/__init__.py

@@ -0,0 +1,13 @@
+from trezor.wire import register, protobuf_workflow
+from trezor.utils import unimport
+from trezor.messages.wire_types import NEMGetAddress
+
+
+@unimport
+def dispatch_NemGetAddress(*args, **kwargs):
+    from .get_address import nem_get_address
+    return nem_get_address(*args, **kwargs)
+
+
+def boot():
+    register(NEMGetAddress, protobuf_workflow, dispatch_NemGetAddress)

src/apps/nem/get_address.py

@@ -0,0 +1,20 @@
+from apps.wallet.get_address import _show_address
+from apps.common import seed
+from trezor.messages.NEMAddress import NEMAddress
+from .helpers import *
+
+_NEM_CURVE = 'ed25519-keccak'
+
+
+async def nem_get_address(ctx, msg):
+    network = nem_validate_network(msg.network)
+    node = await seed.derive_node(ctx, msg.address_n, _NEM_CURVE)
+    address = node.nem_address(network)
+
+    if msg.show_display:
+        while True:
+            if await _show_address(ctx, address):
+                break
+
+    return NEMAddress(address=address)
+

src/apps/nem/helpers.py

@@ -0,0 +1,14 @@
+
+from micropython import const
+
+_NEM_NETWORK_MAINNET = const(0x68)
+_NEM_NETWORK_TESTNET = const(0x98)
+_NEM_NETWORK_MIJIN = const(0x60)
+
+
+def nem_validate_network(network):
+    if network in (_NEM_NETWORK_MAINNET, _NEM_NETWORK_TESTNET, _NEM_NETWORK_MIJIN):
+        return network
+    if network is None:
+        return _NEM_NETWORK_MAINNET
+    raise ValueError('Invalid NEM network')

src/main.py

@@ -12,6 +12,7 @@ import apps.management
 import apps.wallet
 import apps.ethereum
 import apps.lisk
+import apps.nem
 if __debug__:
     import apps.debug
 else:
@@ -23,6 +24,7 @@ apps.management.boot()
 apps.wallet.boot()
 apps.ethereum.boot()
 apps.lisk.boot()
+apps.nem.boot()
 if __debug__:
     apps.debug.boot()
 else: