chore(utxo-lib): added exports for bufferutils bitcoinjs-lib

TICKET: BTC-2150

Author: christopher-fong

modules/utxo-core/package.json

@@ -54,8 +54,7 @@
     "@bitgo/unspents": "^0.47.21",
     "@bitgo/utxo-lib": "^11.3.0",
     "@bitgo/wasm-miniscript": "2.0.0-beta.7",
-    "bip174": "npm:@bitgo-forks/[email protected]",
-    "bitcoinjs-lib": "npm:@bitgo-forks/[email protected]"
+    "bip174": "npm:@bitgo-forks/[email protected]"
   },
   "gitHead": "18e460ddf02de2dbf13c2aa243478188fb539f0c"
 }

modules/utxo-core/src/paygo/ExtractAddressPayGoAttestation.ts

@@ -1,6 +1,6 @@
 import assert from 'assert';
 
-import { varuint } from 'bitcoinjs-lib/src/bufferutils';
+import { bufferutils } from '@bitgo/utxo-lib';
 
 // The signed address will always have the following structure:
 // 0x18Bitcoin Signed Message:\n<varint_length><ENTROPY><ADDRESS><UUID>
@@ -32,7 +32,7 @@ export function extractAddressBufferFromPayGoAttestationProof(message: Buffer):
 
   // we decode the varint of the message which is uint32
   // https://en.bitcoin.it/wiki/Protocol_documentation
-  const varInt = varuint.decode(message, offset);
+  const varInt = bufferutils.varuint.decode(message, offset);
   assert(varInt);
   offset += 1;
 

modules/utxo-core/src/testutil/generatePayGoAttestationProof.utils.ts

@@ -1,6 +1,6 @@
 import crypto from 'crypto';
 
-import { varuint } from 'bitcoinjs-lib/src/bufferutils';
+import { bufferutils } from '@bitgo/utxo-lib';
 /** We have a mirrored function similar to our hsm that generates our Bitcoin signed
  * message so that we can use for testing. This creates a random entropy as well using
  * the nilUUID structure to construct our uuid buffer and given our address we can
@@ -30,7 +30,7 @@ export function generatePayGoAttestationProof(uuid: string, address: Buffer): Bu
 
   // <VARINT_LENGTH>
   const msgLength = entropyLength + addressBufferLength + uuidBufferLength;
-  const msgLengthBuffer = varuint.encode(msgLength);
+  const msgLengthBuffer = bufferutils.varuint.encode(msgLength);
 
   // <0x18Bitcoin Signed Message:\n<LENGTH><ENTROPY><ADDRESS><UUID>
   const proofMessage = Buffer.concat([prefixBuffer, msgLengthBuffer, entropy, address, uuidBuffer]);

modules/utxo-lib/src/index.ts

@@ -1,5 +1,7 @@
 export * from 'bitcoinjs-lib';
 
+export * as bufferutils from 'bitcoinjs-lib/src/bufferutils';
+
 export * as bitgo from './bitgo';
 
 export * as address from './address';