core+legacy: fix KMD signing (introduce negative_fee coin field)

common/defs/bitcoin/actinium.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/axe.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bcash.json

@@ -43,6 +43,7 @@
     "https://bch4.trezor.io",
     "https://bch5.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bcash_testnet.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bellcoin.json

@@ -37,6 +37,7 @@
     "https://bellcoin-blockbook.ilmango.work",
     "https://bell.blockbook.ovh"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bgold.json

@@ -43,6 +43,7 @@
     "https://btg4.trezor.io",
     "https://btg5.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bgold_testnet.json

@@ -37,6 +37,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bitcash.json

@@ -37,6 +37,7 @@
   "max_address_length": 53,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bitcloud.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bitcoin.json

@@ -43,6 +43,7 @@
     "https://btc4.trezor.io",
     "https://btc5.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bitcoin_regtest.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bitcoin_testnet.json

@@ -37,6 +37,7 @@
     "https://tbtc1.trezor.io",
     "https://tbtc2.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bitcore.json

@@ -36,6 +36,7 @@
     "https://insight.bitcore.cc"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bitgreen.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bitsend.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bitzeny.json

@@ -39,6 +39,7 @@
   "blockbook": [
     "https://zny.blockbook.ovh"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/blockstamp.json

@@ -37,6 +37,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 1000,
   "consensus_branch_id": null
 }

common/defs/bitcoin/bprivate.json

@@ -36,6 +36,7 @@
     "https://explorer.btcprivate.org"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/brhodium.json

@@ -40,6 +40,7 @@
       "https://blockbook1.bitcoinrh.org",
       "https://blockbook2.bitcoinrh.org"
     ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/capricoin.json

@@ -42,6 +42,7 @@
     "https://blockbook3.capricoin.org",
     "https://blockbook4.capricoin.org"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/cpuchain.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/crown.json

@@ -38,6 +38,7 @@
     "https://insight-03.crown.tech"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/dash.json

@@ -40,6 +40,7 @@
     "https://dash4.trezor.io",
     "https://dash5.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/dash_testnet.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/decred.json

@@ -36,6 +36,7 @@
     "https://mainnet.decred.org"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/decred_testnet.json

@@ -36,6 +36,7 @@
     "https://testnet.decred.org"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/denarius.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/digibyte.json

@@ -40,6 +40,7 @@
     "https://dgb1.trezor.io",
     "https://dgb2.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/dogecoin.json

@@ -40,6 +40,7 @@
     "https://doge4.trezor.io",
     "https://doge5.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/elements.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/faircoin.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/feathercoin.json

@@ -36,6 +36,7 @@
     "https://bitcore.feathercoin.com"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/florincoin.json

@@ -36,6 +36,7 @@
     "https://livenet.flocha.in"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/fujicoin.json

@@ -39,6 +39,7 @@
   "blockbook": [
     "https://explorer.fujicoin.org"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/gamecredits.json

@@ -36,6 +36,7 @@
   "blockbook": [
     "https://blockbook.gamecredits.network"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/gincoin.json

@@ -36,6 +36,7 @@
   "blockbook": [
     "https://blockbook.gincoin.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/groestlcoin.json

@@ -39,6 +39,7 @@
   "blockbook": [
     "https://blockbook.groestlcoin.org"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/groestlcoin_testnet.json

@@ -38,6 +38,7 @@
   "blockbook": [
     "https://blockbook-test.groestlcoin.org"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/horizen.json

@@ -36,6 +36,7 @@
     "https://explorer.horizen.global"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/komodo.json

@@ -36,6 +36,7 @@
     "https://api.kmd.dev"
   ],
   "blockbook": [],
+  "negative_fee": true,
   "cooldown": 100,
   "consensus_branch_id": {
     "1": 0,

common/defs/bitcoin/koto.json

@@ -36,6 +36,7 @@
     "https://insight.kotocoin.info"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/litecoin.json

@@ -40,6 +40,7 @@
     "https://ltc4.trezor.io",
     "https://ltc5.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/litecoin_testnet.json

@@ -36,6 +36,7 @@
     "https://testnet.litecore.io"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/megacoin.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/monacoin.json

@@ -39,6 +39,7 @@
   "blockbook": [
     "https://blockbook.electrum-mona.org"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/monetaryunit.json

@@ -36,6 +36,7 @@
   "blockbook": [
     "https://blockbook.monetaryunit.org"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/myriad.json

@@ -37,6 +37,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/namecoin.json

@@ -37,6 +37,7 @@
     "https://nmc1.trezor.io",
     "https://nmc2.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/nix.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": ["https://blockchain.nixplatform.io"],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/particl.json

@@ -37,6 +37,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/particl_testnet.json

@@ -34,6 +34,7 @@
   "max_address_length": 34,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/pesetacoin.json

@@ -36,6 +36,7 @@
     "https://live.pesetacoin.info"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/pivx.json

@@ -36,6 +36,7 @@
   "blockbook": [
     "https://blockbook.pivx.link"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/pivx_testnet.json

@@ -36,6 +36,7 @@
   "blockbook": [
     "https://blockbook-testnet.pivx.link"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/polis.json

@@ -36,6 +36,7 @@
   "blockbook": [
     "https://blockbook.polispay.org"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/primecoin.json

@@ -34,6 +34,7 @@
   "max_address_length": 35,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/qtum.json

@@ -37,6 +37,7 @@
     "max_address_length": 34,
     "bitcore": [],
     "blockbook": [],
+  "negative_fee": false,
     "cooldown": 100,
     "consensus_branch_id": null
 }

common/defs/bitcoin/qtum_testnet.json

@@ -37,6 +37,7 @@
     "max_address_length": 34,
     "bitcore": [],
     "blockbook": [],
+  "negative_fee": false,
     "cooldown": 100,
     "consensus_branch_id": null
 }

common/defs/bitcoin/ravencoin.json

@@ -38,6 +38,7 @@
   "blockbook": [
     "https://blockbook.ravencoin.org"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/ritocoin.json

@@ -38,6 +38,7 @@
   "blockbook": [
     "https://blockbook.ritocoin.org"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/smartcash.json

@@ -39,6 +39,7 @@
     "https://insight.smartcash.cc"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/smartcash_testnet.json

@@ -37,6 +37,7 @@
   "max_address_length": 35,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/stakenet.json

@@ -37,6 +37,7 @@
     "max_address_length": 47,
     "bitcore": [],
     "blockbook": [],
+  "negative_fee": false,
     "cooldown": 100,
     "consensus_branch_id": null
   }

common/defs/bitcoin/terracoin.json

@@ -36,6 +36,7 @@
     "https://insight.terracoin.io"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/vertcoin.json

@@ -40,6 +40,7 @@
     "https://vtc4.trezor.io",
     "https://vtc5.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/viacoin.json

@@ -39,6 +39,7 @@
     "https://explorer.viacoin.org"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/vipstarcoin.json

@@ -41,6 +41,7 @@
     "blockbook": [
       "https://vips.blockbook.japanesecoin-pool.work"
     ],
+  "negative_fee": false,
     "cooldown": 100,
     "consensus_branch_id": null
 }

common/defs/bitcoin/zcash.json

@@ -40,6 +40,7 @@
     "https://zec4.trezor.io",
     "https://zec5.trezor.io"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": {
     "1": 0,

common/defs/bitcoin/zcash_testnet.json

@@ -36,6 +36,7 @@
     "https://explorer.testnet.z.cash"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": {
     "1": 0,

common/defs/bitcoin/zclassic.json

@@ -36,6 +36,7 @@
     "https://explorer.zcl.zeltrez.io"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/zcoin.json

@@ -39,6 +39,7 @@
     "https://insight.zcoin.io"
   ],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/zcoin_testnet.json

@@ -37,6 +37,7 @@
   "max_address_length": 35,
   "bitcore": [],
   "blockbook": [],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

common/defs/bitcoin/zelcash.json

@@ -36,6 +36,7 @@
   "blockbook": [
     "https://blockbook.zel.network"
   ],
+  "negative_fee": false,
   "cooldown": 100,
   "consensus_branch_id": null
 }

core/src/apps/common/coininfo.py

@@ -26,6 +26,7 @@ class CoinInfo:
         force_bip143: bool,
         bip115: bool,
         decred: bool,
+        negative_fee: bool,
         curve_name: str,
     ):
         self.coin_name = coin_name
@@ -45,6 +46,7 @@ class CoinInfo:
         self.force_bip143 = force_bip143
         self.bip115 = bip115
         self.decred = decred
+        self.negative_fee = negative_fee
         self.curve_name = curve_name
         if curve_name == "secp256k1-groestl":
             self.b58_hash = groestl512d_32
@@ -92,6 +94,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Testnet":
@@ -113,6 +116,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Actinium":
@@ -134,6 +138,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Axe":
@@ -155,6 +160,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bellcoin":
@@ -176,6 +182,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "BitCash":
@@ -197,6 +204,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bitgreen":
@@ -218,6 +226,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "BitZeny":
@@ -239,6 +248,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bitcloud":
@@ -260,6 +270,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bcash":
@@ -281,6 +292,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=True,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bcash Testnet":
@@ -302,6 +314,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=True,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bgold":
@@ -323,6 +336,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=True,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bgold Testnet":
@@ -344,6 +358,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=True,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bprivate":
@@ -365,6 +380,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Brhodium":
@@ -386,6 +402,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bitcore":
@@ -407,6 +424,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Bitsend":
@@ -428,6 +446,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "BlockStamp":
@@ -449,6 +468,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "CPUchain":
@@ -470,6 +490,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Capricoin":
@@ -491,6 +512,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Dash":
@@ -512,6 +534,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Dash Testnet":
@@ -533,6 +556,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Decred":
@@ -554,6 +578,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=True,
+            negative_fee=False,
             curve_name='secp256k1-decred',
         )
     elif name == "Decred Testnet":
@@ -575,6 +600,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=True,
+            negative_fee=False,
             curve_name='secp256k1-decred',
         )
     elif name == "Denarius":
@@ -596,6 +622,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "DigiByte":
@@ -617,6 +644,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Dogecoin":
@@ -638,6 +666,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Elements":
@@ -659,6 +688,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "FairCoin":
@@ -680,6 +710,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Feathercoin":
@@ -701,6 +732,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Florincoin":
@@ -722,6 +754,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Fujicoin":
@@ -743,6 +776,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Gincoin":
@@ -764,6 +798,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "GameCredits":
@@ -785,6 +820,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Groestlcoin":
@@ -806,6 +842,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1-groestl',
         )
     elif name == "Groestlcoin Testnet":
@@ -827,6 +864,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1-groestl',
         )
     elif name == "Horizen":
@@ -848,6 +886,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=True,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Komodo":
@@ -869,6 +908,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=True,
             curve_name='secp256k1',
         )
     elif name == "Koto":
@@ -890,6 +930,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Litecoin":
@@ -911,6 +952,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Litecoin Testnet":
@@ -932,6 +974,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Megacoin":
@@ -953,6 +996,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Monacoin":
@@ -974,6 +1018,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "MonetaryUnit":
@@ -995,6 +1040,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Myriad":
@@ -1016,6 +1062,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "NIX":
@@ -1037,6 +1084,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Namecoin":
@@ -1058,6 +1106,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "PIVX":
@@ -1079,6 +1128,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "PIVX Testnet":
@@ -1100,6 +1150,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Particl":
@@ -1121,6 +1172,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Particl Testnet":
@@ -1142,6 +1194,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Pesetacoin":
@@ -1163,6 +1216,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Polis":
@@ -1184,6 +1238,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Primecoin":
@@ -1205,6 +1260,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Qtum":
@@ -1226,6 +1282,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Qtum Testnet":
@@ -1247,6 +1304,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Ravencoin":
@@ -1268,6 +1326,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Regtest":
@@ -1289,6 +1348,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Ritocoin":
@@ -1310,6 +1370,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "SmartCash":
@@ -1331,6 +1392,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1-smart',
         )
     elif name == "SmartCash Testnet":
@@ -1352,6 +1414,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1-smart',
         )
     elif name == "Stakenet":
@@ -1373,6 +1436,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "VIPSTARCOIN":
@@ -1394,6 +1458,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Vertcoin":
@@ -1415,6 +1480,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Viacoin":
@@ -1436,6 +1502,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "ZClassic":
@@ -1457,6 +1524,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Zcash":
@@ -1478,6 +1546,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Zcash Testnet":
@@ -1499,6 +1568,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Zcoin":
@@ -1520,6 +1590,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "Zcoin Testnet":
@@ -1541,6 +1612,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     elif name == "ZelCash":
@@ -1562,6 +1634,7 @@ def by_name(name: str) -> CoinInfo:
             force_bip143=False,
             bip115=False,
             decred=False,
+            negative_fee=False,
             curve_name='secp256k1',
         )
     raise ValueError('Unknown coin name "%s"' % name)

core/src/apps/common/coininfo.py.mako

@@ -26,6 +26,7 @@ class CoinInfo:
         force_bip143: bool,
         bip115: bool,
         decred: bool,
+        negative_fee: bool,
         curve_name: str,
     ):
         self.coin_name = coin_name
@@ -45,6 +46,7 @@ class CoinInfo:
         self.force_bip143 = force_bip143
         self.bip115 = bip115
         self.decred = decred
+        self.negative_fee = negative_fee
         self.curve_name = curve_name
         if curve_name == "secp256k1-groestl":
             self.b58_hash = groestl512d_32
@@ -95,6 +97,7 @@ ATTRIBUTES = (
     ("force_bip143", bool),
     ("bip115", bool),
     ("decred", bool),
+    ("negative_fee", bool),
     ("curve_name", lambda r: repr(r.replace("_", "-"))),
 )
 %>\

core/src/apps/wallet/sign_tx/signing.py

@@ -193,8 +193,12 @@ async def check_tx_fee(tx: SignTx, keychain: seed.Keychain):
         total_out += txo_bin.amount
 
     fee = total_in - total_out
-    if fee < 0:
+
-        raise SigningError(FailureType.NotEnoughFunds, "Not enough funds")
+    if coin.negative_fee:
+        pass  # bypass check for negative fee coins, required for reward TX
+    else:
+        if fee < 0:
+            raise SigningError(FailureType.NotEnoughFunds, "Not enough funds")
 
     # fee > (coin.maxfee per byte * tx size)
     if fee > (coin.maxfee_kb / 1000) * (weight.get_total() / 4):

legacy/firmware/coin_info.c.mako

@@ -44,6 +44,7 @@ const CoinInfo coins[COINS_COUNT] = {
 	.bech32_prefix = ${c_str(c.bech32_prefix)},
 	.cashaddr_prefix = ${c_str(c.cashaddr_prefix)},
 	.coin_type = (${c_int(c.slip44)} | 0x80000000),
+	.negative_fee = ${c_bool(c.negative_fee)},
 	.curve_name = ${c.curve_name.upper()}_NAME,
 	.curve = &${c.curve_name}_info,
 },

legacy/firmware/coins.h

@@ -47,6 +47,7 @@ typedef struct _CoinInfo {
   const char *bech32_prefix;
   const char *cashaddr_prefix;
   uint32_t coin_type;
+  bool negative_fee;
   const char *curve_name;
   const curve_info *curve;
 } CoinInfo;

legacy/firmware/signing.c

@@ -686,22 +686,32 @@ static bool signing_check_output(TxOutputType *txoutput) {
 }
 
 static bool signing_check_fee(void) {
-  // check fees
+  if (coin->negative_fee) {
-  if (spending > to_spend) {
+    // bypass check for negative fee coins, required for reward TX
-    fsm_sendFailure(FailureType_Failure_NotEnoughFunds, _("Not enough funds"));
+  } else {
-    signing_abort();
+    // check fees
-    return false;
+    if (spending > to_spend) {
-  }
+      fsm_sendFailure(FailureType_Failure_NotEnoughFunds,
-  uint64_t fee = to_spend - spending;
+                      _("Not enough funds"));
-  if (fee > ((uint64_t)tx_weight * coin->maxfee_kb) / 4000) {
-    layoutFeeOverThreshold(coin, fee);
-    if (!protectButton(ButtonRequestType_ButtonRequest_FeeOverThreshold,
-                       false)) {
-      fsm_sendFailure(FailureType_Failure_ActionCancelled, NULL);
       signing_abort();
       return false;
     }
   }
+  uint64_t fee;
+  if (spending <= to_spend) {
+    fee = to_spend - spending;
+    if (fee > ((uint64_t)tx_weight * coin->maxfee_kb) / 4000) {
+      layoutFeeOverThreshold(coin, fee);
+      if (!protectButton(ButtonRequestType_ButtonRequest_FeeOverThreshold,
+                         false)) {
+        fsm_sendFailure(FailureType_Failure_ActionCancelled, NULL);
+        signing_abort();
+        return false;
+      }
+    }
+  } else {
+    fee = 0;
+  }
   // last confirmation
   layoutConfirmTx(coin, to_spend - change_spend, fee);
   if (!protectButton(ButtonRequestType_ButtonRequest_SignTx, false)) {

python/trezorlib/tests/device_tests/test_msg_signtx_komodo.py

@@ -21,79 +21,171 @@ from trezorlib.tools import parse_path
 
 from ..support.tx_cache import tx_cache
 from .common import TrezorTest
+from .conftest import TREZOR_VERSION
 
 # KMD has no usable backends, use cached TX only
 TX_API = tx_cache("Komodo", allow_fetch=False)
 
-TXHASH_339c3e = bytes.fromhex(
+TXHASH_2807c = bytes.fromhex(
-    "339c3e78610e229f65ebc3fa722016fcb9fbde7bc196d2d876604f5257ada19c"
+    "2807c5b126ec8e2b078cab0f12e4c8b4ce1d7724905f8ebef8dca26b0c8e0f1d"
+)
+TXHASH_7b28bd = bytes.fromhex(
+    "7b28bd91119e9776f0d4ebd80e570165818a829bbf4477cd1afe5149dbcd34b1"
 )
 
 
 @pytest.mark.komodo
-@pytest.mark.skip(reason="komodo is broken at the moment - issue #178")
 class TestMsgSigntxKomodo(TrezorTest):
     def test_one_one_fee_sapling(self):
         self.setup_mnemonic_allallall()
 
-        # prevout:  339c3e78610e229f65ebc3fa722016fcb9fbde7bc196d2d876604f5257ada19c:0
+        # prevout: 2807c5b126ec8e2b078cab0f12e4c8b4ce1d7724905f8ebef8dca26b0c8e0f1d:0
-        # input 1: 2.9999 KMD
+        # input 1: 10.9998 KMD
 
         inp1 = proto.TxInputType(
             address_n=parse_path(
-                "m/Komodo/0h/0/0"
+                "44'/141'/0'/0/0"
-            ),  # RDvyC66RQf7HKkUB5zyLKJhitV4ibzkKF5
+            ),  # R9HgJZo6JBKmPvhm7whLSR8wiHyZrEDVRi
-            amount=299990000,
+            amount=1099980000,
-            prev_hash=TXHASH_339c3e,
+            prev_hash=TXHASH_2807c,
             prev_index=0,
         )
 
         out1 = proto.TxOutputType(
-            address="RDvyC66RQf7HKkUB5zyLKJhitV4ibzkKF5",
+            address="R9HgJZo6JBKmPvhm7whLSR8wiHyZrEDVRi",
-            amount=299990000 - 10000,
+            amount=1099980000 - 10000,
             script_type=proto.OutputScriptType.PAYTOADDRESS,
         )
 
         with self.client:
-            """
+            er = [
-            self.client.set_expected_responses(
+                proto.TxRequest(
-                [
+                    request_type=proto.RequestType.TXINPUT,
-                    proto.TxRequest(
+                    details=proto.TxRequestDetailsType(request_index=0),
-                        request_type=proto.RequestType.TXINPUT,
+                ),
-                        details=proto.TxRequestDetailsType(request_index=0),
+                proto.TxRequest(
-                    ),
+                    request_type=proto.RequestType.TXOUTPUT,
-                    proto.TxRequest(
+                    details=proto.TxRequestDetailsType(request_index=0),
-                        request_type=proto.RequestType.TXOUTPUT,
+                ),
-                        details=proto.TxRequestDetailsType(request_index=0),
+                proto.ButtonRequest(code=proto.ButtonRequestType.ConfirmOutput),
-                    ),
+            ]
-                    proto.ButtonRequest(code=proto.ButtonRequestType.ConfirmOutput),
+            if TREZOR_VERSION != 1:  # extra screen for lock_time
-                    proto.ButtonRequest(code=proto.ButtonRequestType.SignTx),
+                er += [proto.ButtonRequest(code=proto.ButtonRequestType.SignTx)]
-                    proto.TxRequest(
+            er += [
-                        request_type=proto.RequestType.TXINPUT,
+                proto.ButtonRequest(code=proto.ButtonRequestType.SignTx),
-                        details=proto.TxRequestDetailsType(request_index=0),
+                proto.TxRequest(
-                    ),
+                    request_type=proto.RequestType.TXINPUT,
-                    proto.TxRequest(
+                    details=proto.TxRequestDetailsType(request_index=0),
-                        request_type=proto.RequestType.TXOUTPUT,
+                ),
-                        details=proto.TxRequestDetailsType(request_index=0),
+                proto.TxRequest(
-                    ),
+                    request_type=proto.RequestType.TXOUTPUT,
-                    proto.TxRequest(request_type=proto.RequestType.TXFINISHED),
+                    details=proto.TxRequestDetailsType(request_index=0),
-                ]
+                ),
-            )
+                proto.TxRequest(request_type=proto.RequestType.TXFINISHED),
-            """
+            ]
+
+            self.client.set_expected_responses(er)
 
             details = proto.SignTx(
                 version=4,
                 overwintered=True,
                 version_group_id=0x892F2085,
                 branch_id=0x76B809BB,
-                lock_time=0x5C5CE16B,
+                lock_time=0x5D2A30B8,
             )
             _, serialized_tx = btc.sign_tx(
                 self.client, "Komodo", [inp1], [out1], details=details, prev_txes=TX_API
             )
 
-        # Accepted by network: tx 92b45f54cb7c3cdfc4a88dbf088dfcc7c1417ad0955f02712e136da7fd5343d6
+        # Accepted by network: tx 7b28bd91119e9776f0d4ebd80e570165818a829bbf4477cd1afe5149dbcd34b1
         assert (
             serialized_tx.hex()
-            == "0400008085202f89019ca1ad57524f6076d8d296c17bdefbb9fc162072fac3eb659f220e61783e9c33000000006a47304402206972af8ff4dec4074da9edb1a741114bebda9e686bb411dd6f388aafd81f0af2022060a05d0ea66d5b8632868b6a6d377ad1a8941385d628be4631b31cc246014b8501210235ad92bb4efda1e6794890f248fa26aab75906bd496c07a6a8532b62a5bd80f7ffffffff01e054e111000000001976a91433058d6bb20e9297fc0a518e2e0262e854496a6c88ac6be15c5c000000000000000000000000000000"
+            == "0400008085202f89011d0f8e0c6ba2dcf8be8e5f9024771dceb4c8e4120fab8c072b8eec26b1c50728000000006a4730440220158c970ca2fc6bcc33026eb5366f0342f63b35d178f7efb334b1df78fe90b67202207bc4ff69f67cf843b08564a5adc77bf5593e28ab4d5104911824ac13fe885d8f012102a87aef7b1a8f676e452d6240767699719cd58b0261c822472c25df146938bca5ffffffff01d0359041000000001976a91400178fa0b6fc253a3a402ee2cadd8a7bfec08f6388acb8302a5d000000000000000000000000000000"
+        )
+
+    def test_one_one_rewards_claim(self):
+        self.setup_mnemonic_allallall()
+
+        # prevout: 7b28bd91119e9776f0d4ebd80e570165818a829bbf4477cd1afe5149dbcd34b1:0
+        # input 1: 10.9997 KMD
+
+        inp1 = proto.TxInputType(
+            address_n=parse_path(
+                "44'/141'/0'/0/0"
+            ),  # R9HgJZo6JBKmPvhm7whLSR8wiHyZrEDVRi
+            amount=1099970000,
+            prev_hash=TXHASH_7b28bd,
+            prev_index=0,
+        )
+
+        out1 = proto.TxOutputType(
+            address="R9HgJZo6JBKmPvhm7whLSR8wiHyZrEDVRi",
+            amount=1099970000 - 10000,
+            script_type=proto.OutputScriptType.PAYTOADDRESS,
+        )
+
+        # kmd interest, vout sum > vin sum
+        out2 = proto.TxOutputType(
+            address="R9HgJZo6JBKmPvhm7whLSR8wiHyZrEDVRi",
+            amount=79605,
+            script_type=proto.OutputScriptType.PAYTOADDRESS,
+        )
+
+        with self.client:
+            er = [
+                proto.TxRequest(
+                    request_type=proto.RequestType.TXINPUT,
+                    details=proto.TxRequestDetailsType(request_index=0),
+                ),
+                proto.TxRequest(
+                    request_type=proto.RequestType.TXOUTPUT,
+                    details=proto.TxRequestDetailsType(request_index=0),
+                ),
+                proto.ButtonRequest(code=proto.ButtonRequestType.ConfirmOutput),
+                proto.TxRequest(
+                    request_type=proto.RequestType.TXOUTPUT,
+                    details=proto.TxRequestDetailsType(request_index=1),
+                ),
+                proto.ButtonRequest(code=proto.ButtonRequestType.ConfirmOutput),
+            ]
+            if TREZOR_VERSION != 1:  # extra screen for lock_time
+                er += [proto.ButtonRequest(code=proto.ButtonRequestType.SignTx)]
+            er += [
+                proto.ButtonRequest(code=proto.ButtonRequestType.SignTx),
+                proto.TxRequest(
+                    request_type=proto.RequestType.TXINPUT,
+                    details=proto.TxRequestDetailsType(request_index=0),
+                ),
+                proto.TxRequest(
+                    request_type=proto.RequestType.TXOUTPUT,
+                    details=proto.TxRequestDetailsType(request_index=0),
+                ),
+                proto.TxRequest(
+                    request_type=proto.RequestType.TXOUTPUT,
+                    details=proto.TxRequestDetailsType(request_index=1),
+                ),
+                proto.TxRequest(request_type=proto.RequestType.TXFINISHED),
+            ]
+            self.client.set_expected_responses(er)
+
+            details = proto.SignTx(
+                version=4,
+                overwintered=True,
+                version_group_id=0x892F2085,
+                branch_id=0x76B809BB,
+                lock_time=0x5D2AF1F2,
+            )
+            _, serialized_tx = btc.sign_tx(
+                self.client,
+                "Komodo",
+                [inp1],
+                [out1, out2],
+                details=details,
+                prev_txes=TX_API,
+            )
+
+        # Accepted by network: tx c775678ceb18277729b427c7acf2f8ce63ac02fc2366f47ce08a3f443ff0e059
+        assert (
+            serialized_tx.hex()
+            == "0400008085202f8901b134cddb4951fe1acd7744bf9b828a816501570ed8ebd4f076979e1191bd287b000000006a4730440220483a58f5be3a147c773c663008c992a7fcea4d03bdf4c1d4bc0535c0d98ddf0602207b19d69140dd00c7a94f048c712aeaed55dfd27f581c7212d9cc5e476fe1dc9f012102a87aef7b1a8f676e452d6240767699719cd58b0261c822472c25df146938bca5ffffffff02c00e9041000000001976a91400178fa0b6fc253a3a402ee2cadd8a7bfec08f6388acf5360100000000001976a91400178fa0b6fc253a3a402ee2cadd8a7bfec08f6388acf2f12a5d000000000000000000000000000000"
         )

python/trezorlib/tests/txcache/insight_komodo_tx_2807c5b126ec8e2b078cab0f12e4c8b4ce1d7724905f8ebef8dca26b0c8e0f1d.json

@@ -0,0 +1 @@
+{"txid":"2807c5b126ec8e2b078cab0f12e4c8b4ce1d7724905f8ebef8dca26b0c8e0f1d","version":4,"locktime":0,"vin":[{"txid":"340d478f0c5750057d5f5028db8c10993578849e63f5cf8500e33ddefcd5334f","vout":0,"sequence":4294967295,"n":0,"scriptSig":{"hex":"483045022100d29433faed373d23883ace59acda117a67d6e8e3e99bc767b96a183a840b4aec0220258baef0d63360324f2a455299b2695ae2fa727a5969a25a604c22086e36c6e9012102a87aef7b1a8f676e452d6240767699719cd58b0261c822472c25df146938bca5","asm":"3045022100d29433faed373d23883ace59acda117a67d6e8e3e99bc767b96a183a840b4aec0220258baef0d63360324f2a455299b2695ae2fa727a5969a25a604c22086e36c6e9[ALL] 02a87aef7b1a8f676e452d6240767699719cd58b0261c822472c25df146938bca5"},"addr":"R9HgJZo6JBKmPvhm7whLSR8wiHyZrEDVRi","valueSat":1099990000,"value":10.9999,"doubleSpentTxID":null}],"vout":[{"value":"10.99980000","n":0,"scriptPubKey":{"hex":"76a91400178fa0b6fc253a3a402ee2cadd8a7bfec08f6388ac","asm":"OP_DUP OP_HASH160 00178fa0b6fc253a3a402ee2cadd8a7bfec08f63 OP_EQUALVERIFY OP_CHECKSIG","addresses":["R9HgJZo6JBKmPvhm7whLSR8wiHyZrEDVRi"],"type":"pubkeyhash"},"spentTxId":null,"spentIndex":null,"spentHeight":null}],"vjoinsplit":[],"blockheight":-1,"confirmations":0,"time":1563046535,"valueOut":10.9998,"size":211,"valueIn":10.9999,"fees":0.0001,"fOverwintered":true,"nVersionGroupId":2301567109,"nExpiryHeight":0,"valueBalance":0,"spendDescs":[],"outputDescs":[]}

python/trezorlib/tests/txcache/insight_komodo_tx_339c3e78610e229f65ebc3fa722016fcb9fbde7bc196d2d876604f5257ada19c.json

@@ -1 +0,0 @@
-{"txid":"339c3e78610e229f65ebc3fa722016fcb9fbde7bc196d2d876604f5257ada19c","version":4,"locktime":1549590608,"vin":[{"txid":"d41f0d442bbd63597481e329f4189e57a2ef05c92ae48f05a6c96781b947e7ca","vout":1,"sequence":4294967295,"n":0,"scriptSig":{"hex":"483045022100f81c1b71036beab189c4a3bdc5bf34ea1dc86e3bc339e5e8928defb392477a0202204e10aede405ceec43adbf0efb3032469a61976561e86d81826da833e4fdfda1f01210235ad92bb4efda1e6794890f248fa26aab75906bd496c07a6a8532b62a5bd80f7","asm":"3045022100f81c1b71036beab189c4a3bdc5bf34ea1dc86e3bc339e5e8928defb392477a0202204e10aede405ceec43adbf0efb3032469a61976561e86d81826da833e4fdfda1f[ALL] 0235ad92bb4efda1e6794890f248fa26aab75906bd496c07a6a8532b62a5bd80f7"},"addr":"RDvyC66RQf7HKkUB5zyLKJhitV4ibzkKF5","valueSat":300000000,"value":3,"doubleSpentTxID":null}],"vout":[{"value":"2.99990000","n":0,"scriptPubKey":{"hex":"76a91433058d6bb20e9297fc0a518e2e0262e854496a6c88ac","asm":"OP_DUP OP_HASH160 33058d6bb20e9297fc0a518e2e0262e854496a6c OP_EQUALVERIFY OP_CHECKSIG","addresses":["RDvyC66RQf7HKkUB5zyLKJhitV4ibzkKF5"],"type":"pubkeyhash"},"spentTxId":"92b45f54cb7c3cdfc4a88dbf088dfcc7c1417ad0955f02712e136da7fd5343d6","spentIndex":0,"spentHeight":1219089}],"vjoinsplit":[],"blockhash":"013c24f1dad6561a786c512555b99180f92d785920165df6fadb264387a75489","blockheight":1219084,"confirmations":9868,"time":1549591478,"blocktime":1549591478,"valueOut":2.9999,"size":211,"valueIn":3,"fees":0.0001,"fOverwintered":true,"nVersionGroupId":2301567109,"nExpiryHeight":0,"valueBalance":0,"spendDescs":[],"outputDescs":[]}

python/trezorlib/tests/txcache/insight_komodo_tx_7b28bd91119e9776f0d4ebd80e570165818a829bbf4477cd1afe5149dbcd34b1.json

@@ -0,0 +1 @@
+{"txid":"7b28bd91119e9776f0d4ebd80e570165818a829bbf4477cd1afe5149dbcd34b1","version":4,"locktime":1563046072,"vin":[{"txid":"2807c5b126ec8e2b078cab0f12e4c8b4ce1d7724905f8ebef8dca26b0c8e0f1d","vout":0,"sequence":4294967295,"n":0,"scriptSig":{"hex":"4730440220158c970ca2fc6bcc33026eb5366f0342f63b35d178f7efb334b1df78fe90b67202207bc4ff69f67cf843b08564a5adc77bf5593e28ab4d5104911824ac13fe885d8f012102a87aef7b1a8f676e452d6240767699719cd58b0261c822472c25df146938bca5","asm":"30440220158c970ca2fc6bcc33026eb5366f0342f63b35d178f7efb334b1df78fe90b67202207bc4ff69f67cf843b08564a5adc77bf5593e28ab4d5104911824ac13fe885d8f[ALL] 02a87aef7b1a8f676e452d6240767699719cd58b0261c822472c25df146938bca5"},"addr":"R9HgJZo6JBKmPvhm7whLSR8wiHyZrEDVRi","valueSat":1099980000,"value":10.9998,"doubleSpentTxID":null}],"vout":[{"value":"10.99970000","n":0,"scriptPubKey":{"hex":"76a91400178fa0b6fc253a3a402ee2cadd8a7bfec08f6388ac","asm":"OP_DUP OP_HASH160 00178fa0b6fc253a3a402ee2cadd8a7bfec08f63 OP_EQUALVERIFY OP_CHECKSIG","addresses":["R9HgJZo6JBKmPvhm7whLSR8wiHyZrEDVRi"],"type":"pubkeyhash"},"spentTxId":null,"spentIndex":null,"spentHeight":null}],"vjoinsplit":[],"blockheight":-1,"confirmations":0,"time":1563047233,"valueOut":10.9997,"size":210,"valueIn":10.9998,"fees":0.0001,"fOverwintered":true,"nVersionGroupId":2301567109,"nExpiryHeight":0,"valueBalance":0,"spendDescs":[],"outputDescs":[]}