From fd40efd5a1722d2f4a03de3c36625fa846a86d95 Mon Sep 17 00:00:00 2001
From: Monte Lai <monte.lai@consensys.net>
Date: Thu, 5 Mar 2026 09:57:11 +0800
Subject: [PATCH] feat: add new hardware entropy type option

---
 .../src/api/account-options.test.ts           | 23 +++++++++++++++++++
 .../keyring-api/src/api/account-options.ts    |  5 ++++
 2 files changed, 28 insertions(+)

diff --git a/packages/keyring-api/src/api/account-options.test.ts b/packages/keyring-api/src/api/account-options.test.ts
index 1dd556860..b6c8f1284 100644
--- a/packages/keyring-api/src/api/account-options.test.ts
+++ b/packages/keyring-api/src/api/account-options.test.ts
@@ -99,4 +99,27 @@ describe('api', () => {
       `At path: entropy.type -- Expected the literal \`"mnemonic"\`, but received: "${options.entropy.type}"`,
     );
   });
+
+  it('throws if options.entropy.type is Hardware (not implemented)', () => {
+    const options = {
+      entropy: { type: KeyringAccountEntropyTypeOption.Hardware },
+    };
+
+    expect(() => assert(options, KeyringAccountOptionsStruct)).toThrow(
+      `At path: entropy.type -- Expected the literal \`"mnemonic"\`, but received: "${KeyringAccountEntropyTypeOption.Hardware}"`,
+    );
+  });
+
+  it('throws if options.entropy.type is Hardware with additional fields', () => {
+    const options = {
+      entropy: {
+        type: KeyringAccountEntropyTypeOption.Hardware,
+        deviceId: 'some-device-id',
+      },
+    };
+
+    expect(() => assert(options, KeyringAccountOptionsStruct)).toThrow(
+      `At path: entropy.type -- Expected the literal \`"mnemonic"\`, but received: "${KeyringAccountEntropyTypeOption.Hardware}"`,
+    );
+  });
 });
diff --git a/packages/keyring-api/src/api/account-options.ts b/packages/keyring-api/src/api/account-options.ts
index a8fbbeb26..cc9c0270f 100644
--- a/packages/keyring-api/src/api/account-options.ts
+++ b/packages/keyring-api/src/api/account-options.ts
@@ -25,6 +25,11 @@ export enum KeyringAccountEntropyTypeOption {
    */
   PrivateKey = 'private-key',
 
+  /**
+   * Indicates that the account was created from a hardware wallet.
+   */
+  Hardware = 'hardware',
+
   /**
    * Indicates that the account was created with custom, keyring-specific entropy.
    * This is an opaque type where the entropy source is managed internally by the keyring.