.github/workflows/main_ci.yml

@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     services:
       regtest:
-        image: junderw/bitcoinjs-regtest-server@sha256:5b69cf95d9edf6d5b3a00504665d6b3c382a6aa3728fe8ce897974c519061463
+        image: junderw/bitcoinjs-regtest-server@sha256:a46ec1a651ca5b1a5408f2b2526ea5f435421dd2bc2f28fae3bc33e1fd614552
         ports:
           - 8080:8080
     steps:

CHANGELOG.md

@@ -1,16 +1,3 @@
-# 6.0.0
-__removed__
-- bip32: Removed the re-export. Please add as dependency to your app instead.
-- ECPair: Please use bip32 moving forward. ecpair package was created for those who need it.
-- TransactionBuilder: Any internal files used only in TB (classify, templates, etc.) were also removed.
-
-__added__
-- taproot segwit v1 address support (bech32m) via address module (#1676)
-- hashForWitnessV1 method on Transaction class (#1745)
-
-__fixed__
-- Transaction version read/write differed. (#1717)
-
 # 5.2.0
 __changed__
 - Updated PSBT to allow for witnessUtxo and nonWitnessUtxo simultaneously (Re: segwit psbt bug) (#1563)

README.md

@@ -1,5 +1,8 @@
 # BitcoinJS (bitcoinjs-lib)
-[![Github CI](https://github.com/bitcoinjs/bitcoinjs-lib/actions/workflows/main_ci.yml/badge.svg)](https://github.com/bitcoinjs/bitcoinjs-lib/actions/workflows/main_ci.yml) [![NPM](https://img.shields.io/npm/v/bitcoinjs-lib.svg)](https://www.npmjs.org/package/bitcoinjs-lib) [![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)](https://github.com/prettier/prettier)
+[![Build Status](https://travis-ci.org/bitcoinjs/bitcoinjs-lib.png?branch=master)](https://travis-ci.org/bitcoinjs/bitcoinjs-lib)
+[![NPM](https://img.shields.io/npm/v/bitcoinjs-lib.svg)](https://www.npmjs.org/package/bitcoinjs-lib)
+
+[![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)](https://github.com/prettier/prettier)
 
 A javascript Bitcoin library for node.js and browsers. Written in TypeScript, but committing the JS files to verify.
 
@@ -81,7 +84,7 @@ If you're familiar with how to use browserify, ignore this and carry on, otherwi
 
 **NOTE**: We use Node Maintenance LTS features, if you need strict ES5, use [`--transform babelify`](https://github.com/babel/babelify) in conjunction with your `browserify` step (using an [`es2015`](https://babeljs.io/docs/plugins/preset-es2015/) preset).
 
-**WARNING**: iOS devices have [problems](https://github.com/feross/buffer/issues/136), use at least [buffer@5.0.5](https://github.com/feross/buffer/pull/155) or greater,  and enforce the test suites (for `Buffer`, and any other dependency) pass before use.
+**WARNING**: iOS devices have [problems](https://github.com/feross/buffer/issues/136), use atleast [buffer@5.0.5](https://github.com/feross/buffer/pull/155) or greater,  and enforce the test suites (for `Buffer`, and any other dependency) pass before use.
 
 ### Typescript or VSCode users
 Type declarations for Typescript are included in this library. Normal installation should include all the needed type information.
@@ -91,8 +94,6 @@ The below examples are implemented as integration tests, they should be very eas
 Otherwise, pull requests are appreciated.
 Some examples interact (via HTTPS) with a 3rd Party Blockchain Provider (3PBP).
 
-- [Taproot Key Spend](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/taproot.md)
-
 - [Generate a random address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/addresses.spec.ts)
 - [Import an address via WIF](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/addresses.spec.ts)
 - [Generate a 2-of-3 P2SH multisig address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/addresses.spec.ts)

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "bitcoinjs-lib",
-  "version": "6.0.1",
+  "version": "5.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -416,9 +416,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "16.11.7",
+      "version": "16.11.1",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-16.11.7.tgz",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-16.11.1.tgz",
-      "integrity": "sha512-QB5D2sqfSjCmTuWcBWyJ+/44bcjO7VbjSbOE0ucoVbAsSNQc4Lt6QkgkVXkTDwkL4z/beecZNDvVX15D4P8Jbw==",
+      "integrity": "sha512-PYGcJHL9mwl1Ek3PLiYgyEKtwTMmkMw4vbiyz/ps3pfdRYLVv+SN7qHVAImrjdAXxgluDEw6Ph4lyv+m9UpRmA==",
       "dev": true
     },
     "@types/proxyquire": {
@@ -541,21 +541,31 @@
       "integrity": "sha512-Phlt0plgpIIBOGTT/ehfFnbNlfsDEiqmzE2KRXoX1bLIlir4X/MR+zSyBEkL05ffWgnRSf/DXv+WrUAVr93/ow==",
       "dev": true
     },
+    "bindings": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
+      "integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==",
+      "dev": true,
+      "requires": {
+        "file-uri-to-path": "1.0.0"
+      }
+    },
     "bip174": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/bip174/-/bip174-2.0.1.tgz",
       "integrity": "sha512-i3X26uKJOkDTAalYAp0Er+qGMDhrbbh2o93/xiPyAN2s25KrClSpe3VXo/7mNJoqA5qfko8rLS2l3RWZgYmjKQ=="
     },
     "bip32": {
-      "version": "3.0.1",
+      "version": "2.0.6",
-      "resolved": "https://registry.npmjs.org/bip32/-/bip32-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/bip32/-/bip32-2.0.6.tgz",
-      "integrity": "sha512-Uhpp9aEx3iyiO7CpbNGFxv9WcMIVdGoHG04doQ5Ln0u60uwDah7jUSc3QMV/fSZGm/Oo01/OeAmYevXV+Gz5jQ==",
+      "integrity": "sha512-HpV5OMLLGTjSVblmrtYRfFFKuQB+GArM0+XP8HGWfJ5vxYBqo+DesvJwOdC2WJ3bCkZShGf0QIfoIpeomVzVdA==",
       "dev": true,
       "requires": {
         "@types/node": "10.12.18",
         "bs58check": "^2.1.1",
         "create-hash": "^1.2.0",
         "create-hmac": "^1.1.7",
+        "tiny-secp256k1": "^1.1.3",
         "typeforce": "^1.11.5",
         "wif": "^2.0.6"
       },
@@ -631,6 +641,12 @@
         "fill-range": "^7.0.1"
       }
     },
+    "brorand": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
+      "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=",
+      "dev": true
+    },
     "browser-stdout": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
@@ -916,14 +932,44 @@
       "dev": true
     },
     "ecpair": {
-      "version": "2.0.1",
+      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/ecpair/-/ecpair-2.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/ecpair/-/ecpair-1.0.0.tgz",
-      "integrity": "sha512-iT3wztQMeE/nDTlfnAg8dAFUfBS7Tq2BXzq3ae6L+pWgFU0fQ3l0woTzdTBrJV3OxBjxbzjq8EQhAbEmJNWFSw==",
+      "integrity": "sha512-1L+P/ivLC3eKHgqcX1M9tFYQWXDoqwJ3zQnN7zDaTtLpiCQKpFTaAZvnsPC5PkWB4q3EPFAHffCLvjfCqRjuwQ==",
       "dev": true,
       "requires": {
-        "randombytes": "^2.1.0",
+        "randombytes": "^2.0.1",
-        "typeforce": "^1.18.0",
+        "tiny-secp256k1": "^1.1.6",
-        "wif": "^2.0.6"
+        "typeforce": "^1.11.3",
+        "wif": "^2.0.1"
+      }
+    },
+    "elliptic": {
+      "version": "6.5.4",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
+      "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
+      "dev": true,
+      "requires": {
+        "bn.js": "^4.11.9",
+        "brorand": "^1.1.0",
+        "hash.js": "^1.0.0",
+        "hmac-drbg": "^1.0.1",
+        "inherits": "^2.0.4",
+        "minimalistic-assert": "^1.0.1",
+        "minimalistic-crypto-utils": "^1.0.1"
+      },
+      "dependencies": {
+        "bn.js": {
+          "version": "4.12.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz",
+          "integrity": "sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==",
+          "dev": true
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+          "dev": true
+        }
       }
     },
     "emoji-regex": {
@@ -980,6 +1026,12 @@
       "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
       "dev": true
     },
+    "file-uri-to-path": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
+      "integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==",
+      "dev": true
+    },
     "fill-keys": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/fill-keys/-/fill-keys-1.0.2.tgz",
@@ -1152,6 +1204,16 @@
         "safe-buffer": "^5.0.1"
       }
     },
+    "hash.js": {
+      "version": "1.1.7",
+      "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.7.tgz",
+      "integrity": "sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==",
+      "dev": true,
+      "requires": {
+        "inherits": "^2.0.3",
+        "minimalistic-assert": "^1.0.1"
+      }
+    },
     "hasha": {
       "version": "5.2.2",
       "resolved": "https://registry.npmjs.org/hasha/-/hasha-5.2.2.tgz",
@@ -1168,6 +1230,17 @@
       "integrity": "sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==",
       "dev": true
     },
+    "hmac-drbg": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/hmac-drbg/-/hmac-drbg-1.0.1.tgz",
+      "integrity": "sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=",
+      "dev": true,
+      "requires": {
+        "hash.js": "^1.0.3",
+        "minimalistic-assert": "^1.0.0",
+        "minimalistic-crypto-utils": "^1.0.1"
+      }
+    },
     "hoodwink": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/hoodwink/-/hoodwink-2.0.0.tgz",
@@ -1553,6 +1626,18 @@
         "pushdata-bitcoin": "^1.0.1"
       }
     },
+    "minimalistic-assert": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
+      "integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A==",
+      "dev": true
+    },
+    "minimalistic-crypto-utils": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz",
+      "integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo=",
+      "dev": true
+    },
     "minimatch": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
@@ -1621,6 +1706,12 @@
       "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
       "dev": true
     },
+    "nan": {
+      "version": "2.14.2",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.2.tgz",
+      "integrity": "sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ==",
+      "dev": true
+    },
     "node-environment-flags": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/node-environment-flags/-/node-environment-flags-1.0.6.tgz",
@@ -2374,12 +2465,16 @@
       }
     },
     "tiny-secp256k1": {
-      "version": "2.1.2",
+      "version": "1.1.6",
-      "resolved": "https://registry.npmjs.org/tiny-secp256k1/-/tiny-secp256k1-2.1.2.tgz",
+      "resolved": "https://registry.npmjs.org/tiny-secp256k1/-/tiny-secp256k1-1.1.6.tgz",
-      "integrity": "sha512-8qPw7zDK6Hco2tVGYGQeOmOPp/hZnREwy2iIkcq0ygAuqc9WHo29vKN94lNymh1QbB3nthtAMF6KTIrdbsIotA==",
+      "integrity": "sha512-FmqJZGduTyvsr2cF3375fqGHUovSwDi/QytexX1Se4BPuPZpTE5Ftp5fg+EFSuEf3lhZqgCRjEG3ydUQ/aNiwA==",
       "dev": true,
       "requires": {
-        "uint8array-tools": "0.0.6"
+        "bindings": "^1.3.0",
+        "bn.js": "^4.11.8",
+        "create-hmac": "^1.1.7",
+        "elliptic": "^6.4.0",
+        "nan": "^2.13.2"
       }
     },
     "to-fast-properties": {
@@ -2488,12 +2583,6 @@
       "integrity": "sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA==",
       "dev": true
     },
-    "uint8array-tools": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/uint8array-tools/-/uint8array-tools-0.0.6.tgz",
-      "integrity": "sha512-aIvEHNRX1AlOYAr6qSUjQBn4mCduxx6MtC967aRDTb2UUBPj0Ix2ZFQDcmXUUO/UxRPHcw1f5a5nVbCSKDSOqA==",
-      "dev": true
-    },
     "uuid": {
       "version": "3.4.0",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "bitcoinjs-lib",
-  "version": "6.0.1",
+  "version": "5.2.0",
   "description": "Client-side Bitcoin JavaScript library",
   "main": "./src/index.js",
   "types": "./src/index.d.ts",
@@ -62,18 +62,18 @@
     "@types/bs58check": "^2.1.0",
     "@types/create-hash": "^1.2.2",
     "@types/mocha": "^5.2.7",
-    "@types/node": "^16.11.7",
+    "@types/node": "^16.11.1",
     "@types/proxyquire": "^1.3.28",
     "@types/randombytes": "^2.0.0",
     "@types/wif": "^2.0.2",
-    "bip32": "^3.0.1",
+    "bip32": "^2.0.6",
     "bip39": "^3.0.2",
     "bip65": "^1.0.1",
     "bip68": "^1.0.3",
     "bn.js": "^4.11.8",
     "bs58": "^4.0.0",
     "dhttp": "^3.0.0",
-    "ecpair": "^2.0.1",
+    "ecpair": "^1.0.0",
     "hoodwink": "^2.0.0",
     "minimaldata": "^1.0.2",
     "mocha": "^7.1.1",
@@ -84,7 +84,6 @@
     "randombytes": "^2.1.0",
     "regtest-client": "0.2.0",
     "rimraf": "^2.6.3",
-    "tiny-secp256k1": "^2.1.2",
     "ts-node": "^8.3.0",
     "tslint": "^6.1.3",
     "typescript": "^4.4.4"

src/address.js

@@ -13,11 +13,6 @@ const FUTURE_SEGWIT_MIN_SIZE = 2;
 const FUTURE_SEGWIT_MAX_VERSION = 16;
 const FUTURE_SEGWIT_MIN_VERSION = 1;
 const FUTURE_SEGWIT_VERSION_DIFF = 0x50;
-const FUTURE_SEGWIT_VERSION_WARNING =
-  'WARNING: Sending to a future segwit version address can lead to loss of funds. ' +
-  'End users MUST be warned carefully in the GUI and asked if they wish to proceed ' +
-  'with caution. Wallets should verify the segwit version from the output of fromBech32, ' +
-  'then decide when it is safe to use which version of segwit.';
 function _toFutureSegwitAddress(output, network) {
   const data = output.slice(2);
   if (
@@ -33,7 +28,6 @@ function _toFutureSegwitAddress(output, network) {
     throw new TypeError('Invalid version for segwit address');
   if (output[1] !== data.length)
     throw new TypeError('Invalid script for segwit address');
-  console.warn(FUTURE_SEGWIT_VERSION_WARNING);
   return toBech32(data, version, network.bech32);
 }
 function fromBase58Check(address) {
@@ -134,13 +128,11 @@ function toOutputScript(address, network) {
         decodeBech32.version <= FUTURE_SEGWIT_MAX_VERSION &&
         decodeBech32.data.length >= FUTURE_SEGWIT_MIN_SIZE &&
         decodeBech32.data.length <= FUTURE_SEGWIT_MAX_SIZE
-      ) {
+      )
-        console.warn(FUTURE_SEGWIT_VERSION_WARNING);
         return bscript.compile([
           decodeBech32.version + FUTURE_SEGWIT_VERSION_DIFF,
           decodeBech32.data,
         ]);
-      }
     }
   }
   throw new Error(address + ' has no matching Script');

src/bufferutils.d.ts

@@ -11,7 +11,6 @@ export declare function cloneBuffer(buffer: Buffer): Buffer;
 export declare class BufferWriter {
     buffer: Buffer;
     offset: number;
-    static withCapacity(size: number): BufferWriter;
     constructor(buffer: Buffer, offset?: number);
     writeUInt8(i: number): void;
     writeInt32(i: number): void;
@@ -21,7 +20,6 @@ export declare class BufferWriter {
     writeSlice(slice: Buffer): void;
     writeVarSlice(slice: Buffer): void;
     writeVector(vector: Buffer[]): void;
-    end(): Buffer;
 }
 /**
  * Helper class for reading of bitcoin data types from a buffer.

src/bufferutils.js

@@ -58,9 +58,6 @@ class BufferWriter {
     this.offset = offset;
     typeforce(types.tuple(types.Buffer, types.UInt32), [buffer, offset]);
   }
-  static withCapacity(size) {
-    return new BufferWriter(Buffer.alloc(size));
-  }
   writeUInt8(i) {
     this.offset = this.buffer.writeUInt8(i, this.offset);
   }
@@ -91,12 +88,6 @@ class BufferWriter {
     this.writeVarInt(vector.length);
     vector.forEach(buf => this.writeVarSlice(buf));
   }
-  end() {
-    if (this.buffer.length === this.offset) {
-      return this.buffer;
-    }
-    throw new Error(`buffer size ${this.buffer.length}, offset ${this.offset}`);
-  }
 }
 exports.BufferWriter = BufferWriter;
 /**

src/crypto.d.ts

@@ -4,7 +4,3 @@ export declare function sha1(buffer: Buffer): Buffer;
 export declare function sha256(buffer: Buffer): Buffer;
 export declare function hash160(buffer: Buffer): Buffer;
 export declare function hash256(buffer: Buffer): Buffer;
-declare const TAGS: readonly ["BIP0340/challenge", "BIP0340/aux", "BIP0340/nonce", "TapLeaf", "TapBranch", "TapSighash", "TapTweak", "KeyAgg list", "KeyAgg coefficient"];
-export declare type TaggedHashPrefix = typeof TAGS[number];
-export declare function taggedHash(prefix: TaggedHashPrefix, data: Buffer): Buffer;
-export {};

src/crypto.js

@@ -1,6 +1,6 @@
 'use strict';
 Object.defineProperty(exports, '__esModule', { value: true });
-exports.taggedHash = exports.hash256 = exports.hash160 = exports.sha256 = exports.sha1 = exports.ripemd160 = void 0;
+exports.hash256 = exports.hash160 = exports.sha256 = exports.sha1 = exports.ripemd160 = void 0;
 const createHash = require('create-hash');
 function ripemd160(buffer) {
   try {
@@ -34,25 +34,3 @@ function hash256(buffer) {
   return sha256(sha256(buffer));
 }
 exports.hash256 = hash256;
-const TAGS = [
-  'BIP0340/challenge',
-  'BIP0340/aux',
-  'BIP0340/nonce',
-  'TapLeaf',
-  'TapBranch',
-  'TapSighash',
-  'TapTweak',
-  'KeyAgg list',
-  'KeyAgg coefficient',
-];
-/** An object mapping tags to their tagged hash prefix of [SHA256(tag) | SHA256(tag)] */
-const TAGGED_HASH_PREFIXES = Object.fromEntries(
-  TAGS.map(tag => {
-    const tagHash = sha256(Buffer.from(tag));
-    return [tag, Buffer.concat([tagHash, tagHash])];
-  }),
-);
-function taggedHash(prefix, data) {
-  return sha256(Buffer.concat([TAGGED_HASH_PREFIXES[prefix], data]));
-}
-exports.taggedHash = taggedHash;

src/index.d.ts

@@ -5,7 +5,6 @@ import * as payments from './payments';
 import * as script from './script';
 export { address, crypto, networks, payments, script };
 export { Block } from './block';
-export { TaggedHashPrefix } from './crypto';
 export { Psbt, PsbtTxInput, PsbtTxOutput, Signer, SignerAsync, HDSigner, HDSignerAsync, } from './psbt';
 export { OPS as opcodes } from './ops';
 export { Transaction } from './transaction';

src/transaction.d.ts

@@ -12,13 +12,10 @@ export interface Input {
 }
 export declare class Transaction {
     static readonly DEFAULT_SEQUENCE = 4294967295;
-    static readonly SIGHASH_DEFAULT = 0;
     static readonly SIGHASH_ALL = 1;
     static readonly SIGHASH_NONE = 2;
     static readonly SIGHASH_SINGLE = 3;
     static readonly SIGHASH_ANYONECANPAY = 128;
-    static readonly SIGHASH_OUTPUT_MASK = 3;
-    static readonly SIGHASH_INPUT_MASK = 128;
     static readonly ADVANCED_TRANSACTION_MARKER = 0;
     static readonly ADVANCED_TRANSACTION_FLAG = 1;
     static fromBuffer(buffer: Buffer, _NO_STRICT?: boolean): Transaction;
@@ -45,7 +42,6 @@ export declare class Transaction {
      * This hash can then be used to sign the provided transaction input.
      */
     hashForSignature(inIndex: number, prevOutScript: Buffer, hashType: number): Buffer;
-    hashForWitnessV1(inIndex: number, prevOutScripts: Buffer[], values: number[], hashType: number, leafHash?: Buffer, annex?: Buffer): Buffer;
     hashForWitnessV0(inIndex: number, prevOutScript: Buffer, value: number, hashType: number): Buffer;
     getHash(forWitness?: boolean): Buffer;
     getId(): string;

src/transaction.js

@@ -20,7 +20,7 @@ function vectorSize(someVector) {
     }, 0)
   );
 }
-const EMPTY_BUFFER = Buffer.allocUnsafe(0);
+const EMPTY_SCRIPT = Buffer.allocUnsafe(0);
 const EMPTY_WITNESS = [];
 const ZERO = Buffer.from(
   '0000000000000000000000000000000000000000000000000000000000000000',
@@ -32,7 +32,7 @@ const ONE = Buffer.from(
 );
 const VALUE_UINT64_MAX = Buffer.from('ffffffffffffffff', 'hex');
 const BLANK_OUTPUT = {
-  script: EMPTY_BUFFER,
+  script: EMPTY_SCRIPT,
   valueBuffer: VALUE_UINT64_MAX,
 };
 function isOutput(out) {
@@ -124,7 +124,7 @@ class Transaction {
       this.ins.push({
         hash,
         index,
-        script: scriptSig || EMPTY_BUFFER,
+        script: scriptSig || EMPTY_SCRIPT,
         sequence: sequence,
         witness: EMPTY_WITNESS,
       }) - 1
@@ -247,7 +247,7 @@ class Transaction {
     } else {
       // "blank" others input scripts
       txTmp.ins.forEach(input => {
-        input.script = EMPTY_BUFFER;
+        input.script = EMPTY_SCRIPT;
       });
       txTmp.ins[inIndex].script = ourScript;
     }
@@ -257,141 +257,6 @@ class Transaction {
     txTmp.__toBuffer(buffer, 0, false);
     return bcrypto.hash256(buffer);
   }
-  hashForWitnessV1(inIndex, prevOutScripts, values, hashType, leafHash, annex) {
-    // https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki#common-signature-message
-    typeforce(
-      types.tuple(
-        types.UInt32,
-        typeforce.arrayOf(types.Buffer),
-        typeforce.arrayOf(types.Satoshi),
-        types.UInt32,
-      ),
-      arguments,
-    );
-    if (
-      values.length !== this.ins.length ||
-      prevOutScripts.length !== this.ins.length
-    ) {
-      throw new Error('Must supply prevout script and value for all inputs');
-    }
-    const outputType =
-      hashType === Transaction.SIGHASH_DEFAULT
-        ? Transaction.SIGHASH_ALL
-        : hashType & Transaction.SIGHASH_OUTPUT_MASK;
-    const inputType = hashType & Transaction.SIGHASH_INPUT_MASK;
-    const isAnyoneCanPay = inputType === Transaction.SIGHASH_ANYONECANPAY;
-    const isNone = outputType === Transaction.SIGHASH_NONE;
-    const isSingle = outputType === Transaction.SIGHASH_SINGLE;
-    let hashPrevouts = EMPTY_BUFFER;
-    let hashAmounts = EMPTY_BUFFER;
-    let hashScriptPubKeys = EMPTY_BUFFER;
-    let hashSequences = EMPTY_BUFFER;
-    let hashOutputs = EMPTY_BUFFER;
-    if (!isAnyoneCanPay) {
-      let bufferWriter = bufferutils_1.BufferWriter.withCapacity(
-        36 * this.ins.length,
-      );
-      this.ins.forEach(txIn => {
-        bufferWriter.writeSlice(txIn.hash);
-        bufferWriter.writeUInt32(txIn.index);
-      });
-      hashPrevouts = bcrypto.sha256(bufferWriter.end());
-      bufferWriter = bufferutils_1.BufferWriter.withCapacity(
-        8 * this.ins.length,
-      );
-      values.forEach(value => bufferWriter.writeUInt64(value));
-      hashAmounts = bcrypto.sha256(bufferWriter.end());
-      bufferWriter = bufferutils_1.BufferWriter.withCapacity(
-        prevOutScripts.map(varSliceSize).reduce((a, b) => a + b),
-      );
-      prevOutScripts.forEach(prevOutScript =>
-        bufferWriter.writeVarSlice(prevOutScript),
-      );
-      hashScriptPubKeys = bcrypto.sha256(bufferWriter.end());
-      bufferWriter = bufferutils_1.BufferWriter.withCapacity(
-        4 * this.ins.length,
-      );
-      this.ins.forEach(txIn => bufferWriter.writeUInt32(txIn.sequence));
-      hashSequences = bcrypto.sha256(bufferWriter.end());
-    }
-    if (!(isNone || isSingle)) {
-      const txOutsSize = this.outs
-        .map(output => 8 + varSliceSize(output.script))
-        .reduce((a, b) => a + b);
-      const bufferWriter = bufferutils_1.BufferWriter.withCapacity(txOutsSize);
-      this.outs.forEach(out => {
-        bufferWriter.writeUInt64(out.value);
-        bufferWriter.writeVarSlice(out.script);
-      });
-      hashOutputs = bcrypto.sha256(bufferWriter.end());
-    } else if (isSingle && inIndex < this.outs.length) {
-      const output = this.outs[inIndex];
-      const bufferWriter = bufferutils_1.BufferWriter.withCapacity(
-        8 + varSliceSize(output.script),
-      );
-      bufferWriter.writeUInt64(output.value);
-      bufferWriter.writeVarSlice(output.script);
-      hashOutputs = bcrypto.sha256(bufferWriter.end());
-    }
-    const spendType = (leafHash ? 2 : 0) + (annex ? 1 : 0);
-    // Length calculation from:
-    // https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki#cite_note-14
-    // With extension from:
-    // https://github.com/bitcoin/bips/blob/master/bip-0342.mediawiki#signature-validation
-    const sigMsgSize =
-      174 -
-      (isAnyoneCanPay ? 49 : 0) -
-      (isNone ? 32 : 0) +
-      (annex ? 32 : 0) +
-      (leafHash ? 37 : 0);
-    const sigMsgWriter = bufferutils_1.BufferWriter.withCapacity(sigMsgSize);
-    sigMsgWriter.writeUInt8(hashType);
-    // Transaction
-    sigMsgWriter.writeInt32(this.version);
-    sigMsgWriter.writeUInt32(this.locktime);
-    sigMsgWriter.writeSlice(hashPrevouts);
-    sigMsgWriter.writeSlice(hashAmounts);
-    sigMsgWriter.writeSlice(hashScriptPubKeys);
-    sigMsgWriter.writeSlice(hashSequences);
-    if (!(isNone || isSingle)) {
-      sigMsgWriter.writeSlice(hashOutputs);
-    }
-    // Input
-    sigMsgWriter.writeUInt8(spendType);
-    if (isAnyoneCanPay) {
-      const input = this.ins[inIndex];
-      sigMsgWriter.writeSlice(input.hash);
-      sigMsgWriter.writeUInt32(input.index);
-      sigMsgWriter.writeUInt64(values[inIndex]);
-      sigMsgWriter.writeVarSlice(prevOutScripts[inIndex]);
-      sigMsgWriter.writeUInt32(input.sequence);
-    } else {
-      sigMsgWriter.writeUInt32(inIndex);
-    }
-    if (annex) {
-      const bufferWriter = bufferutils_1.BufferWriter.withCapacity(
-        varSliceSize(annex),
-      );
-      bufferWriter.writeVarSlice(annex);
-      sigMsgWriter.writeSlice(bcrypto.sha256(bufferWriter.end()));
-    }
-    // Output
-    if (isSingle) {
-      sigMsgWriter.writeSlice(hashOutputs);
-    }
-    // BIP342 extension
-    if (leafHash) {
-      sigMsgWriter.writeSlice(leafHash);
-      sigMsgWriter.writeUInt8(0);
-      sigMsgWriter.writeUInt32(0xffffffff);
-    }
-    // Extra zero byte because:
-    // https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki#cite_note-19
-    return bcrypto.taggedHash(
-      'TapSighash',
-      Buffer.concat([Buffer.of(0x00), sigMsgWriter.end()]),
-    );
-  }
   hashForWitnessV0(inIndex, prevOutScript, value, hashType) {
     typeforce(
       types.tuple(types.UInt32, types.Buffer, types.Satoshi, types.UInt32),
@@ -531,12 +396,9 @@ class Transaction {
 }
 exports.Transaction = Transaction;
 Transaction.DEFAULT_SEQUENCE = 0xffffffff;
-Transaction.SIGHASH_DEFAULT = 0x00;
 Transaction.SIGHASH_ALL = 0x01;
 Transaction.SIGHASH_NONE = 0x02;
 Transaction.SIGHASH_SINGLE = 0x03;
 Transaction.SIGHASH_ANYONECANPAY = 0x80;
-Transaction.SIGHASH_OUTPUT_MASK = 0x03;
-Transaction.SIGHASH_INPUT_MASK = 0x80;
 Transaction.ADVANCED_TRANSACTION_MARKER = 0x00;
 Transaction.ADVANCED_TRANSACTION_FLAG = 0x01;

test/bufferutils.spec.ts

@@ -66,13 +66,6 @@ describe('bufferutils', () => {
       );
     }
 
-    it('withCapacity', () => {
-      const expectedBuffer = Buffer.from('04030201', 'hex');
-      const withCapacity = BufferWriter.withCapacity(4);
-      withCapacity.writeInt32(0x01020304);
-      testBuffer(withCapacity, expectedBuffer);
-    });
-
     it('writeUint8', () => {
       const values = [0, 1, 254, 255];
       const expectedBuffer = Buffer.from([0, 1, 0xfe, 0xff]);
@@ -284,16 +277,6 @@ describe('bufferutils', () => {
       });
       testBuffer(bufferWriter, expectedBuffer);
     });
-
-    it('end', () => {
-      const expected = Buffer.from('0403020108070605', 'hex');
-      const bufferWriter = BufferWriter.withCapacity(8);
-      bufferWriter.writeUInt32(0x01020304);
-      bufferWriter.writeUInt32(0x05060708);
-      const result = bufferWriter.end();
-      testBuffer(bufferWriter, result);
-      testBuffer(bufferWriter, expected);
-    });
   });
 
   describe('BufferReader', () => {

test/crypto.spec.ts

@@ -1,12 +1,12 @@
 import * as assert from 'assert';
 import { describe, it } from 'mocha';
-import { crypto as bcrypto, TaggedHashPrefix } from '..';
+import { crypto as bcrypto } from '..';
 import * as fixtures from './fixtures/crypto.json';
 
 describe('crypto', () => {
   ['hash160', 'hash256', 'ripemd160', 'sha1', 'sha256'].forEach(algorithm => {
     describe(algorithm, () => {
-      fixtures.hashes.forEach(f => {
+      fixtures.forEach(f => {
         const fn = (bcrypto as any)[algorithm];
         const expected = (f as any)[algorithm];
 
@@ -19,15 +19,4 @@ describe('crypto', () => {
       });
     });
   });
-
-  describe('taggedHash', () => {
-    fixtures.taggedHash.forEach(f => {
-      const bytes = Buffer.from(f.hex, 'hex');
-      const expected = Buffer.from(f.result, 'hex');
-      it(`returns ${f.result} for taggedHash "${f.tag}" of ${f.hex}`, () => {
-        const actual = bcrypto.taggedHash(f.tag as TaggedHashPrefix, bytes);
-        assert.strictEqual(actual.toString('hex'), expected.toString('hex'));
-      });
-    });
-  });
 });

test/fixtures/crypto.json

@@ -1,43 +1,34 @@
-{
+[
-  "hashes": [
+  {
-    {
+    "hex": "0000000000000001",
-      "hex": "0000000000000001",
+    "hash160": "cdb00698f02afd929ffabea308340fa99ac2afa8",
-      "hash160": "cdb00698f02afd929ffabea308340fa99ac2afa8",
+    "hash256": "3ae5c198d17634e79059c2cd735491553d22c4e09d1d9fea3ecf214565df2284",
-      "hash256": "3ae5c198d17634e79059c2cd735491553d22c4e09d1d9fea3ecf214565df2284",
+    "ripemd160": "8d1a05d1bc08870968eb8a81ad4393fd3aac6633",
-      "ripemd160": "8d1a05d1bc08870968eb8a81ad4393fd3aac6633",
+    "sha1": "cb473678976f425d6ec1339838f11011007ad27d",
-      "sha1": "cb473678976f425d6ec1339838f11011007ad27d",
+    "sha256": "cd2662154e6d76b2b2b92e70c0cac3ccf534f9b74eb5b89819ec509083d00a50"
-      "sha256": "cd2662154e6d76b2b2b92e70c0cac3ccf534f9b74eb5b89819ec509083d00a50"
+  },
-    },
+  {
-    {
+    "hex": "0101010101010101",
-      "hex": "0101010101010101",
+    "hash160": "abaf1119f83e384210fe8e222eac76e2f0da39dc",
-      "hash160": "abaf1119f83e384210fe8e222eac76e2f0da39dc",
+    "hash256": "728338d99f356175c4945ef5cccfa61b7b56143cbbf426ddd0e0fc7cfe8c3c23",
-      "hash256": "728338d99f356175c4945ef5cccfa61b7b56143cbbf426ddd0e0fc7cfe8c3c23",
+    "ripemd160": "5825701b4b9767fd35063b286dca3582853e0630",
-      "ripemd160": "5825701b4b9767fd35063b286dca3582853e0630",
+    "sha1": "c0357a32ed1f6a03be92dd094476f7f1a2e214ec",
-      "sha1": "c0357a32ed1f6a03be92dd094476f7f1a2e214ec",
+    "sha256": "04abc8821a06e5a30937967d11ad10221cb5ac3b5273e434f1284ee87129a061"
-      "sha256": "04abc8821a06e5a30937967d11ad10221cb5ac3b5273e434f1284ee87129a061"
+  },
-    },
+  {
-    {
+    "hex": "ffffffffffffffff",
-      "hex": "ffffffffffffffff",
+    "hash160": "f86221f5a1fca059a865c0b7d374dfa9d5f3aeb4",
-      "hash160": "f86221f5a1fca059a865c0b7d374dfa9d5f3aeb4",
+    "hash256": "752adad0a7b9ceca853768aebb6965eca126a62965f698a0c1bc43d83db632ad",
-      "hash256": "752adad0a7b9ceca853768aebb6965eca126a62965f698a0c1bc43d83db632ad",
+    "ripemd160": "cb760221600ed34337ca3ab70016b5f58c838120",
-      "ripemd160": "cb760221600ed34337ca3ab70016b5f58c838120",
+    "sha1": "be673e8a56eaa9d8c1d35064866701c11ef8e089",
-      "sha1": "be673e8a56eaa9d8c1d35064866701c11ef8e089",
+    "sha256": "12a3ae445661ce5dee78d0650d33362dec29c4f82af05e7e57fb595bbbacf0ca"
-      "sha256": "12a3ae445661ce5dee78d0650d33362dec29c4f82af05e7e57fb595bbbacf0ca"
+  },
-    },
+  {
-    {
+    "hex": "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",
-      "hex": "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",
+    "hash160": "9763e6b367c363bd6b88a7b361c98e6beee243a5",
-      "hash160": "9763e6b367c363bd6b88a7b361c98e6beee243a5",
+    "hash256": "033588797115feb3545052670cac2a46584ab3cb460de63756ee0275e66b5799",
-      "hash256": "033588797115feb3545052670cac2a46584ab3cb460de63756ee0275e66b5799",
+    "ripemd160": "cad8593dcdef12ee334c97bab9787f07b3f3a1a5",
-      "ripemd160": "cad8593dcdef12ee334c97bab9787f07b3f3a1a5",
+    "sha1": "10d96fb43aca84e342206887bbeed3065d4e4344",
-      "sha1": "10d96fb43aca84e342206887bbeed3065d4e4344",
+    "sha256": "a7fb8276035057ed6479c5f2305a96da100ac43f0ac10f277e5ab8c5457429da"
-      "sha256": "a7fb8276035057ed6479c5f2305a96da100ac43f0ac10f277e5ab8c5457429da"
+  }
-    }
+]
-  ],
-  "taggedHash": [
-    {
-      "tag": "TapTweak",
-      "hex": "0101010101010101",
-      "result": "71ae15bad52efcecf4c9f672bfbded68a4adb8258f1b95f0d06aefdb5ebd14e9"
-    }
-  ]
-}

test/fixtures/transaction.json

@@ -808,87 +808,6 @@
       "value": 987654321
     }
   ],
-  "taprootSigning": [
-    {
-      "description": "P2TR key path",
-      "utxos": [
-        {
-          "scriptHex": "512053a1f6e454df1aa2776a2814a721372d6258050de330b3c6d10ee8f4e0dda343",
-          "value": 420000000
-        },
-        {
-          "scriptHex": "5120147c9c57132f6e7ecddba9800bb0c4449251c92a1e60371ee77557b6620f3ea3",
-          "value": 462000000
-        },
-        {
-          "scriptHex": "76a914751e76e8199196d454941c45d1b3a323f1433bd688ac",
-          "value": 294000000
-        },
-        {
-          "scriptHex": "5120e4d810fd50586274face62b8a807eb9719cef49c04177cc6b76a9a4251d5450e",
-          "value": 504000000
-        },
-        {
-          "scriptHex": "512091b64d5324723a985170e4dc5a0f84c041804f2cd12660fa5dec09fc21783605",
-          "value": 630000000
-        },
-        {
-          "scriptHex": "00147dd65592d0ab2fe0d0257d571abf032cd9db93dc",
-          "value": 378000000
-        },
-        {
-          "scriptHex": "512075169f4001aa68f15bbed28b218df1d0a62cbbcf1188c6665110c293c907b831",
-          "value": 672000000
-        },
-        {
-          "scriptHex": "51200f63ca2c7639b9bb4be0465cc0aa3ee78a0761ba5f5f7d6ff8eab340f09da561",
-          "value": 546000000
-        },
-        {
-          "scriptHex": "5120053690babeabbb7850c32eead0acf8df990ced79f7a31e358fabf2658b4bc587",
-          "value": 588000000
-        }
-      ],
-      "txHex": "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",
-      "cases": [
-        {
-          "vin": 0,
-          "typeHex": "03",
-          "hash": "7e584883b084ace0469c6962a9a7d2a9060e1f3c218ab40d32c77651482122bc"
-        },
-        {
-          "vin": 1,
-          "typeHex": "83",
-          "hash": "325a644af47e8a5a2591cda0ab0723978537318f10e6a63d4eed783b96a71a4d"
-        },
-        {
-          "vin": 3,
-          "typeHex": "01",
-          "hash": "6ffd256e108685b41831385f57eebf2fca041bc6b5e607ea11b3e03d4cf9d9ba"
-        },
-        {
-          "vin": 4,
-          "typeHex": "00",
-          "hash": "9f90136737540ccc18707e1fd398ad222a1a7e4dd65cbfd22dbe4660191efa58"
-        },
-        {
-          "vin": 6,
-          "typeHex": "02",
-          "hash": "835c9ab6084ed9a8ae9b7cda21e0aa797aca3b76a54bd1e3c7db093f6c57e23f"
-        },
-        {
-          "vin": 7,
-          "typeHex": "82",
-          "hash": "df1cca638283c667084b8ffe6bf6e116cc5a53cf7ae1202c5fee45a9085f1ba5"
-        },
-        {
-          "vin": 8,
-          "typeHex": "81",
-          "hash": "30319859ca79ea1b7a9782e9daebc46e4ca4ca2bc04c9c53b2ec87fa83a526bd"
-        }
-      ]
-    }
-  ],
   "invalid": {
     "addInput": [
       {

test/integration/addresses.spec.ts

@@ -1,11 +1,8 @@
 import * as assert from 'assert';
-import ECPairFactory from 'ecpair';
+import { ECPair } from 'ecpair';
-import * as ecc from 'tiny-secp256k1';
 import { describe, it } from 'mocha';
 import * as bitcoin from '../..';
 import { regtestUtils } from './_regtest';
-
-const ECPair = ECPairFactory(ecc);
 const dhttp = regtestUtils.dhttp;
 const TESTNET = bitcoin.networks.testnet;
 

test/integration/bip32.spec.ts

@@ -1,12 +1,9 @@
 import * as assert from 'assert';
-import BIP32Factory from 'bip32';
+import * as bip32 from 'bip32';
-import * as ecc from 'tiny-secp256k1';
 import * as bip39 from 'bip39';
 import { describe, it } from 'mocha';
 import * as bitcoin from '../..';
 
-const bip32 = BIP32Factory(ecc);
-
 function getAddress(node: any, network?: any): string {
   return bitcoin.payments.p2pkh({ pubkey: node.publicKey, network }).address!;
 }

test/integration/cltv.spec.ts

@@ -1,11 +1,8 @@
 import * as assert from 'assert';
-import ECPairFactory from 'ecpair';
+import { ECPair } from 'ecpair';
-import * as ecc from 'tiny-secp256k1';
 import { before, describe, it } from 'mocha';
 import * as bitcoin from '../..';
 import { regtestUtils } from './_regtest';
-
-const ECPair = ECPairFactory(ecc);
 const regtest = regtestUtils.network;
 const bip65 = require('bip65');
 
@@ -253,7 +250,7 @@ describe('bitcoinjs-lib (transactions w/ CLTV)', () => {
       await regtestUtils.broadcast(tx.toHex()).catch(err => {
         assert.throws(() => {
           if (err) throw err;
-        }, /Error: non-final/);
+        }, /Error: non-final \(code 64\)/);
       });
     },
   );

test/integration/csv.spec.ts

@@ -1,12 +1,9 @@
 import * as assert from 'assert';
 import { PsbtInput } from 'bip174/src/lib/interfaces';
-import ECPairFactory from 'ecpair';
+import { ECPair } from 'ecpair';
-import * as ecc from 'tiny-secp256k1';
 import { before, describe, it } from 'mocha';
 import * as bitcoin from '../..';
 import { regtestUtils } from './_regtest';
-
-const ECPair = ECPairFactory(ecc);
 const regtest = regtestUtils.network;
 const bip68 = require('bip68');
 const varuint = require('varuint-bitcoin');
@@ -222,7 +219,7 @@ describe('bitcoinjs-lib (transactions w/ CSV)', () => {
       await regtestUtils.broadcast(tx.toHex()).catch(err => {
         assert.throws(() => {
           if (err) throw err;
-        }, /Error: non-BIP68-final/);
+        }, /Error: non-BIP68-final \(code 64\)/);
       });
     },
   );

test/integration/payments.spec.ts

@@ -1,10 +1,7 @@
-import ECPairFactory from 'ecpair';
+import { ECPair } from 'ecpair';
-import * as ecc from 'tiny-secp256k1';
 import { describe, it } from 'mocha';
 import * as bitcoin from '../..';
 import { regtestUtils } from './_regtest';
-
-const ECPair = ECPairFactory(ecc);
 const NETWORK = regtestUtils.network;
 const keyPairs = [
   ECPair.makeRandom({ network: NETWORK }),

test/integration/taproot.md

@@ -1,156 +0,0 @@
-# Taproot
-
-A simple keyspend example that is possible with the current API is below.
-
-## Current state of taproot support
-
-- [x] segwit v1 address support via bech32m
-- [x] segwit v1 sighash calculation on Transaction class
-
-## TODO
-
-- [ ] p2tr payment API to make script spends easier
-- [ ] Support within the Psbt class
-
-## Example
-
-### Requirements
-- npm dependencies
-  - bitcoinjs-lib v6.x.x
-  - bip32 v3.x.x
-  - tiny-secp256k1 v2.x.x
-  - regtest-client vx.x.x
-- local regtest-server docker container running
-  - `docker run -d -p 8080:8080 junderw/bitcoinjs-regtest-server`
-- node >= v14
-
-```js
-// Run this whole file as async
-// Catch any errors at the bottom of the file
-// and exit the process with 1 error code
-(async () => {
-
-// Order of the curve (N) - 1
-const N_LESS_1 = Buffer.from(
-  'fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364140',
-  'hex'
-);
-// 1 represented as 32 bytes BE
-const ONE = Buffer.from(
-  '0000000000000000000000000000000000000000000000000000000000000001',
-  'hex'
-);
-
-const crypto = require('crypto');
-// bitcoinjs-lib v6
-const bitcoin = require('bitcoinjs-lib');
-// bip32 v3 wraps tiny-secp256k1
-const BIP32Wrapper = require('bip32').default;
-const RegtestUtils = require('regtest-client').RegtestUtils;
-// tiny-secp256k1 v2 is an ESM module, so we can't "require", and must import async
-const ecc = await import('tiny-secp256k1');
-// wrap the bip32 library
-const bip32 = BIP32Wrapper(ecc);
-// set up dependencies
-const APIPASS = process.env.APIPASS || 'satoshi';
-// docker run -d -p 8080:8080 junderw/bitcoinjs-regtest-server
-const APIURL = process.env.APIURL || 'http://127.0.0.1:8080/1';
-const regtestUtils = new RegtestUtils({ APIPASS, APIURL });
-// End imports
-
-const myKey = bip32.fromSeed(crypto.randomBytes(64), regtestUtils.network);
-
-const output = createKeySpendOutput(myKey.publicKey);
-const address = bitcoin.address.fromOutputScript(
-  output,
-  regtestUtils.network
-);
-// amount from faucet
-const amount = 42e4;
-// amount to send
-const sendAmount = amount - 1e4;
-// get faucet
-const unspent = await regtestUtils.faucetComplex(output, amount);
-
-const tx = createSigned(
-  myKey,
-  unspent.txId,
-  unspent.vout,
-  sendAmount,
-  [output],
-  [amount]
-);
-
-const hex = tx.toHex();
-console.log('Valid tx sent from:');
-console.log(address);
-console.log('tx hex:');
-console.log(hex);
-await regtestUtils.broadcast(hex);
-await regtestUtils.verify({
-  txId: tx.getId(),
-  address,
-  vout: 0,
-  value: sendAmount,
-});
-
-// Function for creating a tweaked p2tr key-spend only address
-// (This is recommended by BIP341)
-function createKeySpendOutput(publicKey) {
-  // x-only pubkey (remove 1 byte y parity)
-  const myXOnlyPubkey = publicKey.slice(1, 33);
-  const commitHash = bitcoin.crypto.taggedHash('TapTweak', myXOnlyPubkey);
-  const tweakResult = ecc.xOnlyPointAddTweak(myXOnlyPubkey, commitHash);
-  if (tweakResult === null) throw new Error('Invalid Tweak');
-  const { xOnlyPubkey: tweaked } = tweakResult;
-  // scriptPubkey
-  return Buffer.concat([
-    // witness v1, PUSH_DATA 32 bytes
-    Buffer.from([0x51, 0x20]),
-    // x-only tweaked pubkey
-    tweaked,
-  ]);
-}
-
-// Function for signing for a tweaked p2tr key-spend only address
-// (Required for the above address)
-function signTweaked(messageHash, key) {
-  const privateKey =
-    key.publicKey[0] === 2
-      ? key.privateKey
-      : ecc.privateAdd(ecc.privateSub(N_LESS_1, key.privateKey), ONE);
-  const tweakHash = bitcoin.crypto.taggedHash(
-    'TapTweak',
-    key.publicKey.slice(1, 33)
-  );
-  const newPrivateKey = ecc.privateAdd(privateKey, tweakHash);
-  if (newPrivateKey === null) throw new Error('Invalid Tweak');
-  return ecc.signSchnorr(messageHash, newPrivateKey, Buffer.alloc(32));
-}
-
-// Function for creating signed tx
-function createSigned(key, txid, vout, amountToSend, scriptPubkeys, values) {
-  const tx = new bitcoin.Transaction();
-  tx.version = 2;
-  // Add input
-  tx.addInput(Buffer.from(txid, 'hex').reverse(), vout);
-  // Add output
-  tx.addOutput(scriptPubkeys[0], amountToSend);
-  const sighash = tx.hashForWitnessV1(
-    0, // which input
-    scriptPubkeys, // All previous outputs of all inputs
-    values, // All previous values of all inputs
-    bitcoin.Transaction.SIGHASH_DEFAULT // sighash flag, DEFAULT is schnorr-only (DEFAULT == ALL)
-  );
-  const signature = Buffer.from(signTweaked(sighash, key));
-  // witness stack for keypath spend is just the signature.
-  // If sighash is not SIGHASH_DEFAULT (ALL) then you must add 1 byte with sighash value
-  tx.ins[0].witness = [signature];
-  return tx;
-}
-
-})().catch((err) => {
-  console.error(err);
-  process.exit(1);
-});
-```

test/integration/taproot.spec.ts

@@ -1,122 +0,0 @@
-import BIP32Factory from 'bip32';
-import * as ecc from 'tiny-secp256k1';
-import { describe, it } from 'mocha';
-import * as bitcoin from '../..';
-import { regtestUtils } from './_regtest';
-const rng = require('randombytes');
-const regtest = regtestUtils.network;
-const bip32 = BIP32Factory(ecc);
-
-describe('bitcoinjs-lib (transaction with taproot)', () => {
-  it('can create (and broadcast via 3PBP) a taproot keyspend Transaction', async () => {
-    const myKey = bip32.fromSeed(rng(64), regtest);
-
-    const output = createKeySpendOutput(myKey.publicKey);
-    const address = bitcoin.address.fromOutputScript(output, regtest);
-    // amount from faucet
-    const amount = 42e4;
-    // amount to send
-    const sendAmount = amount - 1e4;
-    // get faucet
-    const unspent = await regtestUtils.faucetComplex(output, amount);
-
-    const tx = createSigned(
-      myKey,
-      unspent.txId,
-      unspent.vout,
-      sendAmount,
-      [output],
-      [amount],
-    );
-
-    const hex = tx.toHex();
-    // console.log('Valid tx sent from:');
-    // console.log(address);
-    // console.log('tx hex:');
-    // console.log(hex);
-    await regtestUtils.broadcast(hex);
-    await regtestUtils.verify({
-      txId: tx.getId(),
-      address,
-      vout: 0,
-      value: sendAmount,
-    });
-  });
-});
-
-// Order of the curve (N) - 1
-const N_LESS_1 = Buffer.from(
-  'fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364140',
-  'hex',
-);
-// 1 represented as 32 bytes BE
-const ONE = Buffer.from(
-  '0000000000000000000000000000000000000000000000000000000000000001',
-  'hex',
-);
-
-// Function for creating a tweaked p2tr key-spend only address
-// (This is recommended by BIP341)
-function createKeySpendOutput(publicKey: Buffer): Buffer {
-  // x-only pubkey (remove 1 byte y parity)
-  const myXOnlyPubkey = publicKey.slice(1, 33);
-  const commitHash = bitcoin.crypto.taggedHash('TapTweak', myXOnlyPubkey);
-  const tweakResult = ecc.xOnlyPointAddTweak(myXOnlyPubkey, commitHash);
-  if (tweakResult === null) throw new Error('Invalid Tweak');
-  const { xOnlyPubkey: tweaked } = tweakResult;
-  // scriptPubkey
-  return Buffer.concat([
-    // witness v1, PUSH_DATA 32 bytes
-    Buffer.from([0x51, 0x20]),
-    // x-only tweaked pubkey
-    tweaked,
-  ]);
-}
-
-// Function for signing for a tweaked p2tr key-spend only address
-// (Required for the above address)
-interface KeyPair {
-  publicKey: Buffer;
-  privateKey?: Buffer;
-}
-function signTweaked(messageHash: Buffer, key: KeyPair): Uint8Array {
-  const privateKey =
-    key.publicKey[0] === 2
-      ? key.privateKey
-      : ecc.privateAdd(ecc.privateSub(N_LESS_1, key.privateKey!)!, ONE)!;
-  const tweakHash = bitcoin.crypto.taggedHash(
-    'TapTweak',
-    key.publicKey.slice(1, 33),
-  );
-  const newPrivateKey = ecc.privateAdd(privateKey!, tweakHash);
-  if (newPrivateKey === null) throw new Error('Invalid Tweak');
-  return ecc.signSchnorr(messageHash, newPrivateKey, Buffer.alloc(32));
-}
-
-// Function for creating signed tx
-function createSigned(
-  key: KeyPair,
-  txid: string,
-  vout: number,
-  amountToSend: number,
-  scriptPubkeys: Buffer[],
-  values: number[],
-): bitcoin.Transaction {
-  const tx = new bitcoin.Transaction();
-  tx.version = 2;
-  // Add input
-  tx.addInput(Buffer.from(txid, 'hex').reverse(), vout);
-  // Add output
-  tx.addOutput(scriptPubkeys[0], amountToSend);
-  const sighash = tx.hashForWitnessV1(
-    0, // which input
-    scriptPubkeys, // All previous outputs of all inputs
-    values, // All previous values of all inputs
-    bitcoin.Transaction.SIGHASH_DEFAULT, // sighash flag, DEFAULT is schnorr-only (DEFAULT == ALL)
-  );
-  const signature = Buffer.from(signTweaked(sighash, key));
-  // witness stack for keypath spend is just the signature.
-  // If sighash is not SIGHASH_DEFAULT (ALL) then you must add 1 byte with sighash value
-  tx.ins[0].witness = [signature];
-  return tx;
-}

test/integration/transactions.spec.ts

@@ -1,15 +1,11 @@
 import * as assert from 'assert';
-import BIP32Factory from 'bip32';
+import * as bip32 from 'bip32';
-import * as ecc from 'tiny-secp256k1';
+import { ECPair } from 'ecpair';
-import ECPairFactory from 'ecpair';
 import { describe, it } from 'mocha';
 import * as bitcoin from '../..';
 import { regtestUtils } from './_regtest';
-
-const ECPair = ECPairFactory(ecc);
 const rng = require('randombytes');
 const regtest = regtestUtils.network;
-const bip32 = BIP32Factory(ecc);
 
 const validator = (
   pubkey: Buffer,

test/psbt.spec.ts

@@ -1,13 +1,9 @@
 import * as assert from 'assert';
-import BIP32Factory from 'bip32';
+import * as bip32 from 'bip32';
-import * as ecc from 'tiny-secp256k1';
 import * as crypto from 'crypto';
-import ECPairFactory from 'ecpair';
+import { ECPair } from 'ecpair';
 import { describe, it } from 'mocha';
 
-const bip32 = BIP32Factory(ecc);
-const ECPair = ECPairFactory(ecc);
-
 import { networks as NETWORKS, payments, Psbt, Signer, SignerAsync } from '..';
 
 import * as preFixtures from './fixtures/psbt.json';

test/transaction.spec.ts

@@ -328,27 +328,6 @@ describe('Transaction', () => {
     });
   });
 
-  describe('taprootSigning', () => {
-    fixtures.taprootSigning.forEach(f => {
-      const tx = Transaction.fromHex(f.txHex);
-      const prevOutScripts = f.utxos.map(({ scriptHex }) =>
-        Buffer.from(scriptHex, 'hex'),
-      );
-      const values = f.utxos.map(({ value }) => value);
-
-      f.cases.forEach(c => {
-        let hash: Buffer;
-
-        it(`should hash to ${c.hash} for ${f.description}:${c.vin}`, () => {
-          const hashType = Buffer.from(c.typeHex, 'hex').readUInt8(0);
-
-          hash = tx.hashForWitnessV1(c.vin, prevOutScripts, values, hashType);
-          assert.strictEqual(hash.toString('hex'), c.hash);
-        });
-      });
-    });
-  });
-
   describe('setWitness', () => {
     it('only accepts a a witness stack (Array of Buffers)', () => {
       assert.throws(() => {

ts_src/address.ts

@@ -23,11 +23,6 @@ const FUTURE_SEGWIT_MIN_SIZE: number = 2;
 const FUTURE_SEGWIT_MAX_VERSION: number = 16;
 const FUTURE_SEGWIT_MIN_VERSION: number = 1;
 const FUTURE_SEGWIT_VERSION_DIFF: number = 0x50;
-const FUTURE_SEGWIT_VERSION_WARNING: string =
-  'WARNING: Sending to a future segwit version address can lead to loss of funds. ' +
-  'End users MUST be warned carefully in the GUI and asked if they wish to proceed ' +
-  'with caution. Wallets should verify the segwit version from the output of fromBech32, ' +
-  'then decide when it is safe to use which version of segwit.';
 
 function _toFutureSegwitAddress(output: Buffer, network: Network): string {
   const data = output.slice(2);
@@ -49,8 +44,6 @@ function _toFutureSegwitAddress(output: Buffer, network: Network): string {
   if (output[1] !== data.length)
     throw new TypeError('Invalid script for segwit address');
 
-  console.warn(FUTURE_SEGWIT_VERSION_WARNING);
-
   return toBech32(data, version, network.bech32);
 }
 
@@ -170,14 +163,11 @@ export function toOutputScript(address: string, network?: Network): Buffer {
         decodeBech32.version <= FUTURE_SEGWIT_MAX_VERSION &&
         decodeBech32.data.length >= FUTURE_SEGWIT_MIN_SIZE &&
         decodeBech32.data.length <= FUTURE_SEGWIT_MAX_SIZE
-      ) {
+      )
-        console.warn(FUTURE_SEGWIT_VERSION_WARNING);
-
         return bscript.compile([
           decodeBech32.version + FUTURE_SEGWIT_VERSION_DIFF,
           decodeBech32.data,
         ]);
-      }
     }
   }
 

ts_src/bufferutils.ts

@@ -58,10 +58,6 @@ export function cloneBuffer(buffer: Buffer): Buffer {
  * Helper class for serialization of bitcoin data types into a pre-allocated buffer.
  */
 export class BufferWriter {
-  static withCapacity(size: number): BufferWriter {
-    return new BufferWriter(Buffer.alloc(size));
-  }
-
   constructor(public buffer: Buffer, public offset: number = 0) {
     typeforce(types.tuple(types.Buffer, types.UInt32), [buffer, offset]);
   }
@@ -103,13 +99,6 @@ export class BufferWriter {
     this.writeVarInt(vector.length);
     vector.forEach((buf: Buffer) => this.writeVarSlice(buf));
   }
-
-  end(): Buffer {
-    if (this.buffer.length === this.offset) {
-      return this.buffer;
-    }
-    throw new Error(`buffer size ${this.buffer.length}, offset ${this.offset}`);
-  }
 }
 
 /**

ts_src/crypto.ts

@@ -31,27 +31,3 @@ export function hash160(buffer: Buffer): Buffer {
 export function hash256(buffer: Buffer): Buffer {
   return sha256(sha256(buffer));
 }
-
-const TAGS = [
-  'BIP0340/challenge',
-  'BIP0340/aux',
-  'BIP0340/nonce',
-  'TapLeaf',
-  'TapBranch',
-  'TapSighash',
-  'TapTweak',
-  'KeyAgg list',
-  'KeyAgg coefficient',
-] as const;
-export type TaggedHashPrefix = typeof TAGS[number];
-/** An object mapping tags to their tagged hash prefix of [SHA256(tag) | SHA256(tag)] */
-const TAGGED_HASH_PREFIXES = Object.fromEntries(
-  TAGS.map(tag => {
-    const tagHash = sha256(Buffer.from(tag));
-    return [tag, Buffer.concat([tagHash, tagHash])];
-  }),
-) as { [k in TaggedHashPrefix]: Buffer };
-
-export function taggedHash(prefix: TaggedHashPrefix, data: Buffer): Buffer {
-  return sha256(Buffer.concat([TAGGED_HASH_PREFIXES[prefix], data]));
-}

ts_src/index.ts

@@ -7,7 +7,6 @@ import * as script from './script';
 export { address, crypto, networks, payments, script };
 
 export { Block } from './block';
-export { TaggedHashPrefix } from './crypto';
 export {
   Psbt,
   PsbtTxInput,

ts_src/transaction.ts

@@ -27,7 +27,7 @@ function vectorSize(someVector: Buffer[]): number {
   );
 }
 
-const EMPTY_BUFFER: Buffer = Buffer.allocUnsafe(0);
+const EMPTY_SCRIPT: Buffer = Buffer.allocUnsafe(0);
 const EMPTY_WITNESS: Buffer[] = [];
 const ZERO: Buffer = Buffer.from(
   '0000000000000000000000000000000000000000000000000000000000000000',
@@ -39,7 +39,7 @@ const ONE: Buffer = Buffer.from(
 );
 const VALUE_UINT64_MAX: Buffer = Buffer.from('ffffffffffffffff', 'hex');
 const BLANK_OUTPUT = {
-  script: EMPTY_BUFFER,
+  script: EMPTY_SCRIPT,
   valueBuffer: VALUE_UINT64_MAX,
 };
 
@@ -62,13 +62,10 @@ export interface Input {
 
 export class Transaction {
   static readonly DEFAULT_SEQUENCE = 0xffffffff;
-  static readonly SIGHASH_DEFAULT = 0x00;
   static readonly SIGHASH_ALL = 0x01;
   static readonly SIGHASH_NONE = 0x02;
   static readonly SIGHASH_SINGLE = 0x03;
   static readonly SIGHASH_ANYONECANPAY = 0x80;
-  static readonly SIGHASH_OUTPUT_MASK = 0x03;
-  static readonly SIGHASH_INPUT_MASK = 0x80;
   static readonly ADVANCED_TRANSACTION_MARKER = 0x00;
   static readonly ADVANCED_TRANSACTION_FLAG = 0x01;
 
@@ -177,7 +174,7 @@ export class Transaction {
       this.ins.push({
         hash,
         index,
-        script: scriptSig || EMPTY_BUFFER,
+        script: scriptSig || EMPTY_SCRIPT,
         sequence: sequence as number,
         witness: EMPTY_WITNESS,
       }) - 1
@@ -329,7 +326,7 @@ export class Transaction {
     } else {
       // "blank" others input scripts
       txTmp.ins.forEach(input => {
-        input.script = EMPTY_BUFFER;
+        input.script = EMPTY_SCRIPT;
       });
       txTmp.ins[inIndex].script = ourScript;
     }
@@ -342,158 +339,6 @@ export class Transaction {
     return bcrypto.hash256(buffer);
   }
 
-  hashForWitnessV1(
-    inIndex: number,
-    prevOutScripts: Buffer[],
-    values: number[],
-    hashType: number,
-    leafHash?: Buffer,
-    annex?: Buffer,
-  ): Buffer {
-    // https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki#common-signature-message
-    typeforce(
-      types.tuple(
-        types.UInt32,
-        typeforce.arrayOf(types.Buffer),
-        typeforce.arrayOf(types.Satoshi),
-        types.UInt32,
-      ),
-      arguments,
-    );
-
-    if (
-      values.length !== this.ins.length ||
-      prevOutScripts.length !== this.ins.length
-    ) {
-      throw new Error('Must supply prevout script and value for all inputs');
-    }
-
-    const outputType =
-      hashType === Transaction.SIGHASH_DEFAULT
-        ? Transaction.SIGHASH_ALL
-        : hashType & Transaction.SIGHASH_OUTPUT_MASK;
-
-    const inputType = hashType & Transaction.SIGHASH_INPUT_MASK;
-
-    const isAnyoneCanPay = inputType === Transaction.SIGHASH_ANYONECANPAY;
-    const isNone = outputType === Transaction.SIGHASH_NONE;
-    const isSingle = outputType === Transaction.SIGHASH_SINGLE;
-
-    let hashPrevouts = EMPTY_BUFFER;
-    let hashAmounts = EMPTY_BUFFER;
-    let hashScriptPubKeys = EMPTY_BUFFER;
-    let hashSequences = EMPTY_BUFFER;
-    let hashOutputs = EMPTY_BUFFER;
-
-    if (!isAnyoneCanPay) {
-      let bufferWriter = BufferWriter.withCapacity(36 * this.ins.length);
-      this.ins.forEach(txIn => {
-        bufferWriter.writeSlice(txIn.hash);
-        bufferWriter.writeUInt32(txIn.index);
-      });
-      hashPrevouts = bcrypto.sha256(bufferWriter.end());
-
-      bufferWriter = BufferWriter.withCapacity(8 * this.ins.length);
-      values.forEach(value => bufferWriter.writeUInt64(value));
-      hashAmounts = bcrypto.sha256(bufferWriter.end());
-
-      bufferWriter = BufferWriter.withCapacity(
-        prevOutScripts.map(varSliceSize).reduce((a, b) => a + b),
-      );
-      prevOutScripts.forEach(prevOutScript =>
-        bufferWriter.writeVarSlice(prevOutScript),
-      );
-      hashScriptPubKeys = bcrypto.sha256(bufferWriter.end());
-
-      bufferWriter = BufferWriter.withCapacity(4 * this.ins.length);
-      this.ins.forEach(txIn => bufferWriter.writeUInt32(txIn.sequence));
-      hashSequences = bcrypto.sha256(bufferWriter.end());
-    }
-
-    if (!(isNone || isSingle)) {
-      const txOutsSize = this.outs
-        .map(output => 8 + varSliceSize(output.script))
-        .reduce((a, b) => a + b);
-      const bufferWriter = BufferWriter.withCapacity(txOutsSize);
-
-      this.outs.forEach(out => {
-        bufferWriter.writeUInt64(out.value);
-        bufferWriter.writeVarSlice(out.script);
-      });
-
-      hashOutputs = bcrypto.sha256(bufferWriter.end());
-    } else if (isSingle && inIndex < this.outs.length) {
-      const output = this.outs[inIndex];
-
-      const bufferWriter = BufferWriter.withCapacity(
-        8 + varSliceSize(output.script),
-      );
-      bufferWriter.writeUInt64(output.value);
-      bufferWriter.writeVarSlice(output.script);
-      hashOutputs = bcrypto.sha256(bufferWriter.end());
-    }
-
-    const spendType = (leafHash ? 2 : 0) + (annex ? 1 : 0);
-
-    // Length calculation from:
-    // https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki#cite_note-14
-    // With extension from:
-    // https://github.com/bitcoin/bips/blob/master/bip-0342.mediawiki#signature-validation
-    const sigMsgSize =
-      174 -
-      (isAnyoneCanPay ? 49 : 0) -
-      (isNone ? 32 : 0) +
-      (annex ? 32 : 0) +
-      (leafHash ? 37 : 0);
-    const sigMsgWriter = BufferWriter.withCapacity(sigMsgSize);
-
-    sigMsgWriter.writeUInt8(hashType);
-    // Transaction
-    sigMsgWriter.writeInt32(this.version);
-    sigMsgWriter.writeUInt32(this.locktime);
-    sigMsgWriter.writeSlice(hashPrevouts);
-    sigMsgWriter.writeSlice(hashAmounts);
-    sigMsgWriter.writeSlice(hashScriptPubKeys);
-    sigMsgWriter.writeSlice(hashSequences);
-    if (!(isNone || isSingle)) {
-      sigMsgWriter.writeSlice(hashOutputs);
-    }
-    // Input
-    sigMsgWriter.writeUInt8(spendType);
-    if (isAnyoneCanPay) {
-      const input = this.ins[inIndex];
-      sigMsgWriter.writeSlice(input.hash);
-      sigMsgWriter.writeUInt32(input.index);
-      sigMsgWriter.writeUInt64(values[inIndex]);
-      sigMsgWriter.writeVarSlice(prevOutScripts[inIndex]);
-      sigMsgWriter.writeUInt32(input.sequence);
-    } else {
-      sigMsgWriter.writeUInt32(inIndex);
-    }
-    if (annex) {
-      const bufferWriter = BufferWriter.withCapacity(varSliceSize(annex));
-      bufferWriter.writeVarSlice(annex);
-      sigMsgWriter.writeSlice(bcrypto.sha256(bufferWriter.end()));
-    }
-    // Output
-    if (isSingle) {
-      sigMsgWriter.writeSlice(hashOutputs);
-    }
-    // BIP342 extension
-    if (leafHash) {
-      sigMsgWriter.writeSlice(leafHash);
-      sigMsgWriter.writeUInt8(0);
-      sigMsgWriter.writeUInt32(0xffffffff);
-    }
-
-    // Extra zero byte because:
-    // https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki#cite_note-19
-    return bcrypto.taggedHash(
-      'TapSighash',
-      Buffer.concat([Buffer.of(0x00), sigMsgWriter.end()]),
-    );
-  }
-
   hashForWitnessV0(
     inIndex: number,
     prevOutScript: Buffer,