Add Bitcoin Gold implementation

android/app/src/androidTest/java/com/trustwallet/core/app/blockchains/CoinAddressDerivationTests.kt

@@ -29,6 +29,7 @@ class CoinAddressDerivationTests {
         BINANCE -> assertEquals("bnb12vtaxl9952zm6rwf7v8jerq74pvaf77fcmvzhw", address)
         BITCOIN -> assertEquals("bc1quvuarfksewfeuevuc6tn0kfyptgjvwsvrprk9d", address)
         BITCOINCASH -> assertEquals("bitcoincash:qpzl3jxkzgvfd9flnd26leud5duv795fnv7vuaha70", address)
+        BITCOINGOLD -> assertEquals("btg1qwz9sed0k4neu6ycrudzkca6cnqe3zweq35hvtg", address)
         CALLISTO -> assertEquals("0x3E6FFC80745E6669135a76F4A7ce6BCF02436e04", address)
         DASH -> assertEquals("XqHiz8EXYbTAtBEYs4pWTHh7ipEDQcNQeT", address)
         DIGIBYTE -> assertEquals("dgb1qtjgmerfqwdffyf8ghcrkgy52cghsqptynmyswu", address)

coins.json

@@ -100,6 +100,34 @@
             "clientDocs": "https://github.com/trezor/blockbook/blob/master/docs/api.md"
         }
     },
+    {
+        "id": "bitcoingold",
+        "name": "Bitcoin Gold",
+        "symbol": "BTG",
+        "decimals": 8,
+        "blockchain": "Bitcoin",
+        "derivationPath": "m/84'/156'/0'/0/0",
+        "curve": "secp256k1",
+        "publicKeyType": "secp256k1",
+        "p2pkhPrefix": 38,
+        "p2shPrefix": 23,
+        "hrp": "btg",
+        "publicKeyHasher": "sha256ripemd",
+        "base58Hasher": "sha256d",
+        "xpub": "zpub",
+        "xprv": "zprv",
+        "explorer": {
+            "url": "https://explorer.bitcoingold.org/insight",
+            "txPath": "/tx/",
+            "accountPath": "/address/"
+        },
+        "info": {
+            "url": "https://bitcoingold.org",
+            "client": "https://github.com/trezor/blockbook",
+            "clientPublic": "",
+            "clientDocs": "https://github.com/trezor/blockbook/blob/master/docs/api.md"
+        }
+    },
     {
         "id": "callisto",
         "name": "Callisto",

docs/coins.md

@@ -22,6 +22,7 @@ This list is generated from [./coins.json](../coins.json)
 | 144     | XRP              | XRP    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/ripple/info/logo.png" width="32" />       | <https://ripple.com/xrp>      |
 | 145     | Bitcoin Cash     | BCH    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/bitcoincash/info/logo.png" width="32" />  | <https://bitcoincash.org>     |
 | 148     | Stellar          | XLM    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/stellar/info/logo.png" width="32" />      | <https://stellar.org>         |
+| 156     | Bitcoin Gold     | BTG    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/bitcoingold/info/logo.png" width="32" />  | <https://bitcoingold.org>     |
 | 165     | Nano             | NANO   | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/nano/info/logo.png" width="32" />         | <https://nano.org>            |
 | 175     | Ravencoin        | RVN    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/ravencoin/info/logo.png" width="32" />    | <https://ravencoin.org>       |
 | 178     | POA Network      | POA    | <img src="https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/poa/info/logo.png" width="32" />          | <https://poa.network>         |

include/TrustWalletCore/TWBitcoinSigHashType.h

@@ -16,6 +16,7 @@ enum TWBitcoinSigHashType {
     TWBitcoinSigHashTypeNone = 0x02,
     TWBitcoinSigHashTypeSingle = 0x03,
     TWBitcoinSigHashTypeFork = 0x40,
+    TWBitcoinSigHashTypeForkBTG = 0x4f40,
     TWBitcoinSigHashTypeAnyoneCanPay = 0x80
 };
 

include/TrustWalletCore/TWCoinType.h

@@ -27,6 +27,7 @@ enum TWCoinType {
     TWCoinTypeBinance = 714,
     TWCoinTypeBitcoin = 0,
     TWCoinTypeBitcoinCash = 145,
+    TWCoinTypeBitcoinGold = 156,
     TWCoinTypeCallisto = 820,
     TWCoinTypeCardano = 1815, // Note: Cardano Shelley testnet uses purpose 1852 (not 44) 1852/1815
     TWCoinTypeCosmos = 118,

src/Bitcoin/Entry.cpp

@@ -22,6 +22,7 @@ bool Entry::validateAddress(TWCoinType coin, const string& address, TW::byte p2p
         case TWCoinTypeMonacoin:
         case TWCoinTypeQtum:
         case TWCoinTypeViacoin:
+        case TWCoinTypeBitcoinGold:
             return SegwitAddress::isValid(address, hrp)
                 || Address::isValid(address, {{p2pkh}, {p2sh}});
 
@@ -60,6 +61,7 @@ string Entry::deriveAddress(TWCoinType coin, const PublicKey& publicKey, TW::byt
         case TWCoinTypeDigiByte:
         case TWCoinTypeLitecoin:
         case TWCoinTypeViacoin:
+        case TWCoinTypeBitcoinGold:
             return SegwitAddress(publicKey, 0, hrp).string();
 
         case TWCoinTypeBitcoinCash:

src/Bitcoin/Entry.h

@@ -18,6 +18,7 @@ class Entry: public CoinEntry {
         return {
             TWCoinTypeBitcoin,
             TWCoinTypeBitcoinCash,
+            TWCoinTypeBitcoinGold,
             TWCoinTypeDash,
             TWCoinTypeDigiByte,
             TWCoinTypeDogecoin,

swift/Tests/CoinAddressDerivationTests.swift

@@ -34,6 +34,9 @@ class CoinAddressDerivationTests: XCTestCase {
                 case .bitcoinCash:
                     let expectedResult = "bitcoincash:qpzl3jxkzgvfd9flnd26leud5duv795fnv7vuaha70"
                     AssetCoinDerivation(coin, expectedResult, derivedAddress, address)
+                case .bitcoinGold:
+                    let expectedResult = "btg1qwz9sed0k4neu6ycrudzkca6cnqe3zweq35hvtg"
+                    AssetCoinDerivation(coin, expectedResult, derivedAddress, address)
                 case .callisto:
                     let expectedResult = "0x3E6FFC80745E6669135a76F4A7ce6BCF02436e04"
                     AssetCoinDerivation(coin, expectedResult, derivedAddress, address)

tests/BitcoinGold/TWAddressTests.cpp

@@ -0,0 +1,35 @@
+// Copyright © 2017-2020 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+//
+
+#include "../interface/TWTestUtilities.h"
+#include "Bitcoin/Address.h"
+#include "PrivateKey.h"
+#include "PublicKey.h"
+#include "HexCoding.h"
+#include "Coin.h"
+#include <gtest/gtest.h>
+#include <TrustWalletCore/TWAnyAddress.h>
+
+using namespace TW;
+
+const char *PRIVATE_KEY = "CA6D1402199530A5D610A01A53505B6A344CF61B0CCB2902D5AEFBEA63C274BB";
+const char *ADDRESS = "GSGUyooxtCUVBonYV8AANp7FvKy3WTvpMR";
+const char *FAKEADDRESS =  "GSGUyooxtCUVBonYV9AANp7FvKy3WTvpMR";
+
+TEST(TWBitcoinGoldAddress, Valid) {
+    ASSERT_TRUE(Bitcoin::Address::isValid(std::string(ADDRESS)));
+    ASSERT_FALSE(Bitcoin::Address::isValid(std::string(FAKEADDRESS)));
+}
+
+TEST(TWBitcoinGoldAddress, PubkeyToAddress) {
+    const auto privateKey = PrivateKey(parse_hex(PRIVATE_KEY));
+    const auto publicKey = privateKey.getPublicKey(TWPublicKeyTypeSECP256k1);
+
+    /// construct with public key
+    auto address = Bitcoin::Address(PublicKey(publicKey), p2pkhPrefix(TWCoinTypeBitcoinGold));
+    ASSERT_EQ(address.string(), ADDRESS);
+}

tests/BitcoinGold/TWBitcoinGoldTests.cpp

@@ -0,0 +1,125 @@
+// Copyright © 2017-2020 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+
+#include <TrustWalletCore/TWAnyAddress.h>
+#include <TrustWalletCore/TWAnySigner.h>
+#include <TrustWalletCore/TWBitcoinSigHashType.h>
+#include <TrustWalletCore/TWBitcoinScript.h>
+#include <TrustWalletCore/TWHDWallet.h>
+#include <gtest/gtest.h>
+
+#include "Bitcoin/SegwitAddress.h"
+#include "proto/Bitcoin.pb.h"
+#include "Bitcoin/OutPoint.h"
+#include "Bitcoin/Script.h"
+#include "Bitcoin/Transaction.h"
+#include "Bitcoin/TransactionBuilder.h"
+#include "Bitcoin/TransactionSigner.h"
+#include "HexCoding.h"
+#include "../interface/TWTestUtilities.h"
+
+using namespace TW;
+using namespace TW::Bitcoin;
+
+TEST(TWBitcoinGoldScript, LockScriptTest) {
+    auto script = WRAP(TWBitcoinScript, TWBitcoinScriptBuildForAddress(STRING("btg1q6572ulr0kmywle8a30lvagm9xsg9k9n5cmzfdj").get(), TWCoinTypeBitcoinGold));
+    auto scriptData = WRAPD(TWBitcoinScriptData(script.get()));
+    assertHexEqual(scriptData, "0014d53cae7c6fb6c8efe4fd8bfecea36534105b1674");
+
+    auto script2 = WRAP(TWBitcoinScript, TWBitcoinScriptBuildForAddress(STRING("btg1qawhpp9gv3g662phqufjmj2ps2ge7sq4thy5g07").get(), TWCoinTypeBitcoinGold));
+    auto scriptData2 = WRAPD(TWBitcoinScriptData(script2.get()));
+    assertHexEqual(scriptData2, "0014ebae10950c8a35a506e0e265b928305233e802ab");
+}
+
+TEST(BitcoinGoldKey, ExtendedKeys) {
+    auto wallet = WRAP(TWHDWallet, TWHDWalletCreateWithMnemonic(
+        STRING("shoot island position soft burden budget tooth cruel issue economy destroy above").get(),
+        STRING("TREZOR").get()
+    ));
+
+    // .bip84
+    auto zprv = WRAPS(TWHDWalletGetExtendedPrivateKey(wallet.get(), TWPurposeBIP84, TWCoinTypeBitcoinGold, TWHDVersionZPRV));
+    auto zpub = WRAPS(TWHDWalletGetExtendedPublicKey(wallet.get(), TWPurposeBIP84, TWCoinTypeBitcoinGold, TWHDVersionZPUB));
+
+    assertStringsEqual(zprv, "zprvAdB7dYnT955ubXEkdBWhDqFSyeDfVpKQmVJPbRXGiAg4mnGT7dCBsZZFeik1mNt6bS4zkdZSNtZm8dqu1Lrp1brQ16NgYgeEoiz6ftUfVAW");
+    assertStringsEqual(zpub, "zpub6rAU34KLySeCp1KDjD3hayCBXg49uH3G8iDzPovtGWD3eabbfAWSRMsjVyfuRfCCquiKTD6YV42nHUBtwh2TbVPvWqxrGuyEvHN17c3XUXw");
+}
+
+TEST(BitcoinGoldKey, DeriveFromZPub) {
+    auto zpub = STRING("zpub6rAU34KLySeCp1KDjD3hayCBXg49uH3G8iDzPovtGWD3eabbfAWSRMsjVyfuRfCCquiKTD6YV42nHUBtwh2TbVPvWqxrGuyEvHN17c3XUXw");
+    auto pubKey2 = TWHDWalletGetPublicKeyFromExtended(zpub.get(), STRING("m/84'/156'/0'/0/2").get());
+    auto pubKey9 = TWHDWalletGetPublicKeyFromExtended(zpub.get(), STRING("m/84'/156'/0'/0/9").get());
+
+    auto address2 = WRAP(TWAnyAddress, TWAnyAddressCreateWithPublicKey(pubKey2, TWCoinTypeBitcoinGold));
+    auto address2String = WRAPS(TWAnyAddressDescription(address2.get()));
+
+    auto address9 = WRAP(TWAnyAddress, TWAnyAddressCreateWithPublicKey(pubKey9, TWCoinTypeBitcoinGold));
+    auto address9String = WRAPS(TWAnyAddressDescription(address9.get()));
+
+    assertStringsEqual(address2String, "btg1qkdgxykht6nww9l9rn0xhslf78nl605gwka9zak");
+    assertStringsEqual(address9String, "btg1qzw2ptuyaw023gm7te2r5e3xkufn9wrm3kzrg8t");
+}
+
+TEST(TWBitcoinGoldTxGeneration, TxGeneration) {
+    const int64_t amount = 5000;
+
+    // Setup input
+    Proto::SigningInput input;
+    input.set_coin_type(TWCoinTypeBitcoinGold);
+    input.set_hash_type(TWBitcoinSigHashTypeAll | TWBitcoinSigHashTypeForkBTG);
+    input.set_amount(amount);
+    input.set_byte_fee(1);
+    input.set_to_address("btg1qmd6x5awe4t5fjhgntv0pngzdwajjg250wxdcs0");
+    input.set_change_address("btg1qawhpp9gv3g662phqufjmj2ps2ge7sq4thy5g07");
+
+    auto utxoKey0 = parse_hex("cbe13a79b82ec7f8871b336a64fd8d531f598e7c9022e29c67e824cfd54af57f");
+    input.add_private_key(utxoKey0.data(), utxoKey0.size());
+
+
+    auto scriptPub1 = Script(parse_hex("0014db746a75d9aae8995d135b1e19a04d7765242a8f"));
+    auto scriptHash = std::vector<uint8_t>();
+    scriptPub1.matchPayToWitnessPublicKeyHash(scriptHash);
+    auto scriptHashHex = hex(scriptHash.begin(), scriptHash.end());
+
+    auto redeemScript = Script::buildPayToPublicKeyHash(scriptHash);
+    auto scriptString = std::string(redeemScript.bytes.begin(), redeemScript.bytes.end());
+    (*input.mutable_scripts())[scriptHashHex] = scriptString;
+
+    auto utxo0 = input.add_utxo();
+    auto utxo0Script = parse_hex("0014d53cae7c6fb6c8efe4fd8bfecea36534105b1674");
+    utxo0->set_script(utxo0Script.data(), utxo0Script.size());
+    utxo0->set_amount(10000);
+
+    auto hash0 = parse_hex("5727794fa2b94aa22a226e206130524201ede9b50e032526e713c848493a890f");
+    utxo0->mutable_out_point()->set_hash(hash0.data(), hash0.size());
+    utxo0->mutable_out_point()->set_index(0);
+    utxo0->mutable_out_point()->set_sequence(0xfffffffd);
+
+    // Sign
+    auto txSinger = TransactionSigner<Transaction, TransactionBuilder>(std::move(input));
+    txSinger.transaction.lockTime = 0x00098971;
+    auto result = txSinger.sign();
+
+    ASSERT_TRUE(result) << result.error();;
+    auto signedTx = result.payload();
+
+    Data serialized;
+    signedTx.encode(true, serialized);
+    ASSERT_EQ(hex(serialized),
+        "01000000"
+        "0001"
+        "01"
+            "5727794fa2b94aa22a226e206130524201ede9b50e032526e713c848493a890f" "00000000" "00" "fdffffff"
+        "02"
+            "8813000000000000" "160014db746a75d9aae8995d135b1e19a04d7765242a8f"
+            "a612000000000000" "160014ebae10950c8a35a506e0e265b928305233e802ab"
+        "02"
+            "483045022100bf1dcc37c2d3794e216b0b1cfcb04c7f49ef360ae941e46dc9b168f54f5447fe02205a0912bf3a3c0ac0e490c665bcde5239f553c013b2447a6fb5df6387ac029c8c41"
+            "2103e00b5dec8078d526fba090247bd92db6b67a4dd1953b788cea9b52de9471b8cf"
+        "71890900"
+    );
+}
+

tests/BitcoinGold/TWCoinTypeTests.cpp

@@ -0,0 +1,34 @@
+// Copyright © 2017-2020 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+//
+// This is a GENERATED FILE, changes made here MAY BE LOST.
+// Generated one-time (codegen/bin/cointests)
+//
+
+#include "../interface/TWTestUtilities.h"
+#include <TrustWalletCore/TWCoinTypeConfiguration.h>
+#include <gtest/gtest.h>
+
+
+TEST(TWBitcoinGoldCoinType, TWCoinType) {
+    auto symbol = WRAPS(TWCoinTypeConfigurationGetSymbol(TWCoinTypeBitcoinGold));
+    auto txId = TWStringCreateWithUTF8Bytes("2f807d7734de35d2236a1b3d8704eb12954f5f82ea66987949b10e94d9999b23");
+    auto txUrl = WRAPS(TWCoinTypeConfigurationGetTransactionURL(TWCoinTypeBitcoinGold, txId));
+    auto accId = TWStringCreateWithUTF8Bytes("GJjz2Du9BoJQ3CPcoyVTHUJZSj62i1693U");
+    auto accUrl = WRAPS(TWCoinTypeConfigurationGetAccountURL(TWCoinTypeBitcoinGold, accId));
+    auto id = WRAPS(TWCoinTypeConfigurationGetID(TWCoinTypeBitcoinGold));
+    auto name = WRAPS(TWCoinTypeConfigurationGetName(TWCoinTypeBitcoinGold));
+
+    ASSERT_EQ(TWCoinTypeConfigurationGetDecimals(TWCoinTypeBitcoinGold), 8);
+    ASSERT_EQ(TWBlockchainBitcoin, TWCoinTypeBlockchain(TWCoinTypeBitcoinGold));
+    ASSERT_EQ(23, TWCoinTypeP2shPrefix(TWCoinTypeBitcoinGold));
+    ASSERT_EQ(0, TWCoinTypeStaticPrefix(TWCoinTypeBitcoinGold));
+    assertStringsEqual(symbol, "BTG");
+    assertStringsEqual(txUrl, "https://explorer.bitcoingold.org/insight/tx/2f807d7734de35d2236a1b3d8704eb12954f5f82ea66987949b10e94d9999b23");
+    assertStringsEqual(accUrl, "https://explorer.bitcoingold.org/insight/address/GJjz2Du9BoJQ3CPcoyVTHUJZSj62i1693U");
+    assertStringsEqual(id, "bitcoingold");
+    assertStringsEqual(name, "Bitcoin Gold");
+}

tests/BitcoinGold/TWSegwitAddressTests.cpp

@@ -0,0 +1,49 @@
+// Copyright © 2017-2020 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+//
+
+#include "../interface/TWTestUtilities.h"
+#include "Bitcoin/SegwitAddress.h"
+#include "PrivateKey.h"
+#include "PublicKey.h"
+#include "HexCoding.h"
+#include <gtest/gtest.h>
+#include <TrustWalletCore/TWAnyAddress.h>
+
+using namespace TW;
+
+TEST(TWBitcoinGoldSegwitAddress, Valid) {
+    ASSERT_TRUE(Bitcoin::SegwitAddress::isValid("btg1qtesn92ddy8m5yvypgsdtft3zj5qldj9g2u52sk"));
+    ASSERT_FALSE(Bitcoin::SegwitAddress::isValid("btg1qtesn92ddy8m5yvypgsdtft3zj5qldj9g2u52sl"));
+}
+
+/// Initializes a Bech32 address with a human-readable part, a witness
+/// version, and a witness program.
+TEST(TWBitcoinGoldSegwitAddress, WitnessProgramToAddress) {
+    auto address = Bitcoin::SegwitAddress("btg", 0, parse_hex("5e6132a9ad21f7423081441ab4ae229501f6c8a8"));
+
+    ASSERT_TRUE(Bitcoin::SegwitAddress::isValid(address.string()));
+    ASSERT_EQ(address.string(), "btg1qtesn92ddy8m5yvypgsdtft3zj5qldj9g2u52sk");
+}
+
+/// Initializes a Bech32 address with a public key and a HRP prefix.
+TEST(TWBitcoinGoldSegwitAddress, PubkeyToAddress) {
+    const auto publicKey = PublicKey(parse_hex("02f74712b5d765a73b52a14c1e113f2ef3f9502d09d5987ee40f53828cfe68b9a6"), TWPublicKeyTypeSECP256k1);
+
+    /// construct with public key
+    auto address = Bitcoin::SegwitAddress(publicKey, 0, "btg");
+
+    ASSERT_TRUE(Bitcoin::SegwitAddress::isValid(address.string()));
+    ASSERT_EQ(address.string(), "btg1qtesn92ddy8m5yvypgsdtft3zj5qldj9g2u52sk");
+}
+
+/// Decodes a SegWit address.
+TEST(TWBitcoinGoldSegwitAddress, Decode) {
+    std::pair<Bitcoin::SegwitAddress, bool> result = Bitcoin::SegwitAddress::decode("btg1qtesn92ddy8m5yvypgsdtft3zj5qldj9g2u52sk");
+
+    ASSERT_TRUE(result.second);
+    ASSERT_EQ(result.first.string(), "btg1qtesn92ddy8m5yvypgsdtft3zj5qldj9g2u52sk");
+}