tTrezor: Implement decrypt message - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
DIR Refs
DIR Submodules
---
DIR commit d5c3c09bbcec490c9a6f6bb4e33ffe0214c051c6
DIR parent 9cf0a9720fac7020486530462319a6b61fae73a2
HTML Author: Neil Booth <kyuupichan@gmail.com>
Date: Sun, 10 Jan 2016 14:21:40 +0900
Trezor: Implement decrypt message
For reasons I don't yet understand this can only decrypt
messages encrypted by the Trezor, not by Electrum
Diffstat:
M plugins/trezor/client.py | 4 ++--
M plugins/trezor/plugin.py | 12 ++++++++++--
2 files changed, 12 insertions(+), 4 deletions(-)
---
DIR diff --git a/plugins/trezor/client.py b/plugins/trezor/client.py
t@@ -185,8 +185,8 @@ def trezor_client_class(protocol_mixin, base_client, proto):
return wrapped
cls = TrezorClient
- for method in ['apply_settings', 'change_pin', 'get_address',
- 'get_public_node', 'load_device_by_mnemonic',
+ for method in ['apply_settings', 'change_pin', 'decrypt_message',
+ 'get_address', 'get_public_node', 'load_device_by_mnemonic',
'load_device_by_xprv', 'recovery_device',
'reset_device', 'sign_message', 'sign_tx', 'wipe_device']:
setattr(cls, method, wrapper(getattr(cls, method)))
DIR diff --git a/plugins/trezor/plugin.py b/plugins/trezor/plugin.py
t@@ -1,3 +1,4 @@
+import base64
import re
import time
t@@ -6,7 +7,7 @@ from struct import pack
from electrum.account import BIP32_Account
from electrum.bitcoin import (bc_address_to_hash_160, xpub_from_pubkey,
- EncodeBase58Check)
+ public_key_to_bc_address, EncodeBase58Check)
from electrum.i18n import _
from electrum.plugins import BasePlugin, hook
from electrum.transaction import (deserialize, is_extended_pubkey,
t@@ -116,7 +117,14 @@ class TrezorCompatibleWallet(BIP44_Wallet):
return pack('>I', x)
def decrypt_message(self, pubkey, message, password):
- raise RuntimeError(_('Decrypt method is not implemented'))
+ address = public_key_to_bc_address(pubkey.decode('hex'))
+ client = self.get_client()
+ address_path = self.address_id(address)
+ address_n = client.expand_path(address_path)
+ payload = base64.b64decode(message)
+ nonce, message, msg_hmac = payload[:33], payload[33:-8], payload[-8:]
+ result = client.decrypt_message(address_n, nonce, message, msg_hmac)
+ return result.message
def sign_message(self, address, message, password):
client = self.get_client()