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core: the column holds entropy, so name it entropy

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The mnemonic comes back from the entropy exactly, which is what export
returns, and the seed PBKDF2 derives from the mnemonic is computed when a
key is needed and never stored. The column was the one thing called seed
that is not the seed, which is why it needed a comment saying so.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Rvc3HbiWBTqbAvRT45G5oX
This commit is contained in:
Alain Brenzikofer
2026-09-11 14:19:31 +00:00
co-authored by Claude Opus 5
parent da20a039ae
commit 899d5c3a41
6 changed files with 13 additions and 8 deletions
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docs/rfcs/2026-09-10-wallet-keys.md
+7 -2
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@@ -68,7 +68,7 @@ Internal API. The names commands will call these; users will not.
```
/_wallet the next name addresses
/_wallet create new generate the seed
/_wallet create mnemonic=<phrase> take the seed from a mnemonic
/_wallet create mnemonic=<phrase> take the entropy from a mnemonic
/_wallet export the seed mnemonic
/_wallet export <name> one derived secret, as 0x and 64 hex digits
/_wallet delete delete the seed
@@ -86,7 +86,7 @@ not leave the device, and the raw command would be logged there.
```sql
CREATE TABLE wallet_seeds (
wallet_seed_id INTEGER PRIMARY KEY AUTOINCREMENT,
seed BLOB NOT NULL,
entropy BLOB NOT NULL,
next_name_index INTEGER NOT NULL DEFAULT 1,
single_seed INTEGER NOT NULL DEFAULT 1
);
@@ -94,6 +94,11 @@ CREATE TABLE wallet_seeds (
No other table is touched.
What is stored is the BIP-39 entropy, 16 to 32 bytes. The mnemonic comes back
from it exactly, as the entropy and its checksum determine the words, and that
is what export returns. The seed itself, the 64 bytes PBKDF2 derives from the
mnemonic, is computed when a key is needed and never stored.
`next_name_index` is a high-water mark, not a count of names held. A name a
device no longer tracks still owns its address, so an index is never reused.