From b62ca1099ff996e333015142cb712687737d4637 Mon Sep 17 00:00:00 2001
From: Adam Soltys <adam@coinos.io>
Date: Mon, 17 Aug 2026 08:12:34 -0700
Subject: The seed takes dice: an optional entropy field folds open on the
 generate step, hashed with the device's own randomness so it can only
 strengthen the phrase — and the forget option now says all data, which is
 what it takes
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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JtaatFfAbx91Nh3xqKVqKz
---
 src/app.js | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

(limited to 'src/app.js')

diff --git a/src/app.js b/src/app.js
index d4d13b8..63b638b 100644
--- a/src/app.js
+++ b/src/app.js
@@ -770,12 +770,28 @@ function createPane() {
         'div',
         { class: 'col' },
         h('p', { class: 'muted' }, t('genIntro')),
+        // BYO randomness for the seed — folded away so the common path stays
+        // one button. Whatever is typed here is hashed together with the
+        // device's own randomness (see newMnemonic), never used alone.
+        h('button', {
+          class: 'linklike small', style: 'align-self:flex-start',
+          onClick: () => { ui.ownEntropyOpen = !ui.ownEntropyOpen; render(); },
+        }, (ui.ownEntropyOpen ? '▾ ' : '▸ ') + t('entropyToggle')),
+        ui.ownEntropyOpen
+          ? h('div', { class: 'col gap6' },
+              h('p', { class: 'small muted', style: 'margin:0' }, t('entropyHint')),
+              h('textarea', {
+                rows: '2', style: 'font-family:var(--sans)', placeholder: t('entropyPlaceholder'),
+                autocapitalize: 'none', autocomplete: 'off', spellcheck: 'false',
+                value: ui.ownEntropy || '', onInput: (e) => (ui.ownEntropy = e.target.value),
+              }))
+          : null,
         h(
           'button',
           {
             class: 'btn-primary btn-block',
             onClick: () => {
-              ui.draftMnemonic = newMnemonic();
+              ui.draftMnemonic = newMnemonic(128, (ui.ownEntropy || '').trim());
               render();
             },
           },
@@ -804,7 +820,7 @@ function createPane() {
           {
             class: 'btn-ghost btn-sm',
             onClick: () => {
-              ui.draftMnemonic = newMnemonic();
+              ui.draftMnemonic = newMnemonic(128, (ui.ownEntropy || '').trim());
               render();
             },
           },
-- 
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