From 50b7f4e07195df9d8e420c2c6b6fcb1255a9333f Mon Sep 17 00:00:00 2001
From: Otto Allmendinger <otto@bitgo.com>
Date: Fri, 22 May 2026 15:15:05 +0200
Subject: [PATCH] refactor(abstract-utxo): drop utxolib RootWalletKeys from
 keychains.ts

Switch the instanceof check and Triple<BIP32> conversion path to use
fixedScriptWallet.RootWalletKeys from wasm-utxo. The other input shapes
(UtxoNamedKeychains, Triple<{pub}>, string[]) continue to work via the
existing toKeychainTriple/string-array branches.

Refs: T1-3279
---
 modules/abstract-utxo/src/keychains.ts | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/modules/abstract-utxo/src/keychains.ts b/modules/abstract-utxo/src/keychains.ts
index 073b40a848..2903a556bf 100644
--- a/modules/abstract-utxo/src/keychains.ts
+++ b/modules/abstract-utxo/src/keychains.ts
@@ -1,7 +1,6 @@
 import assert from 'assert';
 
 import * as t from 'io-ts';
-import { bitgo } from '@bitgo/utxo-lib';
 import { IRequestTracer, IWallet, KeyIndices, promiseProps, Triple } from '@bitgo/sdk-core';
 import { BIP32, bip32, fixedScriptWallet } from '@bitgo/wasm-utxo';
 
@@ -48,10 +47,10 @@ export function toKeychainTriple(keychains: UtxoNamedKeychains): Triple<UtxoKeyc
 }
 
 export function toBip32Triple(
-  keychains: bitgo.RootWalletKeys | UtxoNamedKeychains | Triple<{ pub: string }> | string[]
+  keychains: fixedScriptWallet.RootWalletKeys | UtxoNamedKeychains | Triple<{ pub: string }> | string[]
 ): Triple<BIP32> {
-  if (keychains instanceof bitgo.RootWalletKeys) {
-    return keychains.triple.map((k) => BIP32.fromBase58(k.toBase58())) as Triple<BIP32>;
+  if (keychains instanceof fixedScriptWallet.RootWalletKeys) {
+    return [keychains.userKey(), keychains.backupKey(), keychains.bitgoKey()];
   }
   if (Array.isArray(keychains)) {
     if (keychains.length !== 3) {